diff --git a/e2e/react-router/basic-file-based/src/routeTree.gen.ts b/e2e/react-router/basic-file-based/src/routeTree.gen.ts
index 2ba33a64143..2daaf9a821e 100644
--- a/e2e/react-router/basic-file-based/src/routeTree.gen.ts
+++ b/e2e/react-router/basic-file-based/src/routeTree.gen.ts
@@ -21,6 +21,7 @@ import { Route as ComponentTypesTestRouteImport } from './routes/component-types
 import { Route as AnchorRouteImport } from './routes/anchor'
 import { Route as LayoutRouteImport } from './routes/_layout'
 import { Route as SearchParamsRouteRouteImport } from './routes/search-params/route'
+import { Route as NonNestedRouteRouteImport } from './routes/non-nested/route'
 import { Route as IndexRouteImport } from './routes/index'
 import { Route as SearchParamsIndexRouteImport } from './routes/search-params/index'
 import { Route as RelativeIndexRouteImport } from './routes/relative/index'
@@ -31,6 +32,7 @@ import { Route as StructuralSharingEnabledRouteImport } from './routes/structura
 import { Route as SearchParamsDefaultRouteImport } from './routes/search-params/default'
 import { Route as RedirectTargetRouteImport } from './routes/redirect/$target'
 import { Route as PostsPostIdRouteImport } from './routes/posts.$postId'
+import { Route as NonNestedBazRouteImport } from './routes/non-nested/baz'
 import { Route as LayoutLayout2RouteImport } from './routes/_layout/_layout-2'
 import { Route as groupLazyinsideRouteImport } from './routes/(group)/lazyinside'
 import { Route as groupInsideRouteImport } from './routes/(group)/inside'
@@ -58,6 +60,7 @@ import { Route as ParamsPsWildcardPrefixChar123Char125RouteImport } from './rout
 import { Route as ParamsPsWildcardSplatRouteImport } from './routes/params-ps/wildcard/$'
 import { Route as ParamsPsNamedChar123fooChar125suffixRouteImport } from './routes/params-ps/named/{$foo}suffix'
 import { Route as ParamsPsNamedPrefixChar123fooChar125RouteImport } from './routes/params-ps/named/prefix{$foo}'
+import { Route as NonNestedBazBazidRouteImport } from './routes/non-nested/baz.$bazid'
 import { Route as LayoutLayout2LayoutBRouteImport } from './routes/_layout/_layout-2/layout-b'
 import { Route as LayoutLayout2LayoutARouteImport } from './routes/_layout/_layout-2/layout-a'
 import { Route as groupSubfolderInsideRouteImport } from './routes/(group)/subfolder/inside'
@@ -71,6 +74,7 @@ import { Route as RelativeLinkWithSearchIndexRouteImport } from './routes/relati
 import { Route as RelativeLinkPathIndexRouteImport } from './routes/relative/link/path/index'
 import { Route as RelativeLinkNestedIndexRouteImport } from './routes/relative/link/nested/index'
 import { Route as ParamsPsNonNestedFooBarRouteImport } from './routes/params-ps/non-nested/$foo_/$bar'
+import { Route as NonNestedBazBazidEditRouteImport } from './routes/non-nested/baz_.$bazid.edit'
 import { Route as ParamsPsNamedFooBarRouteRouteImport } from './routes/params-ps/named/$foo/$bar.route'
 import { Route as RelativeUseNavigatePathPathIndexRouteImport } from './routes/relative/useNavigate/path/$path/index'
 import { Route as RelativeUseNavigateNestedDeepIndexRouteImport } from './routes/relative/useNavigate/nested/deep/index'
@@ -134,6 +138,11 @@ const SearchParamsRouteRoute = SearchParamsRouteRouteImport.update({
   path: '/search-params',
   getParentRoute: () => rootRouteImport,
 } as any)
+const NonNestedRouteRoute = NonNestedRouteRouteImport.update({
+  id: '/non-nested',
+  path: '/non-nested',
+  getParentRoute: () => rootRouteImport,
+} as any)
 const IndexRoute = IndexRouteImport.update({
   id: '/',
   path: '/',
@@ -185,6 +194,11 @@ const PostsPostIdRoute = PostsPostIdRouteImport.update({
   path: '/$postId',
   getParentRoute: () => PostsRoute,
 } as any)
+const NonNestedBazRoute = NonNestedBazRouteImport.update({
+  id: '/baz',
+  path: '/baz',
+  getParentRoute: () => NonNestedRouteRoute,
+} as any)
 const LayoutLayout2Route = LayoutLayout2RouteImport.update({
   id: '/_layout-2',
   getParentRoute: () => LayoutRoute,
@@ -331,6 +345,11 @@ const ParamsPsNamedPrefixChar123fooChar125Route =
     path: '/params-ps/named/prefix{$foo}',
     getParentRoute: () => rootRouteImport,
   } as any)
+const NonNestedBazBazidRoute = NonNestedBazBazidRouteImport.update({
+  id: '/$bazid',
+  path: '/$bazid',
+  getParentRoute: () => NonNestedBazRoute,
+} as any)
 const LayoutLayout2LayoutBRoute = LayoutLayout2LayoutBRouteImport.update({
   id: '/layout-b',
   path: '/layout-b',
@@ -401,6 +420,11 @@ const ParamsPsNonNestedFooBarRoute = ParamsPsNonNestedFooBarRouteImport.update({
   path: '/$bar',
   getParentRoute: () => ParamsPsNonNestedFooRouteRoute,
 } as any)
+const NonNestedBazBazidEditRoute = NonNestedBazBazidEditRouteImport.update({
+  id: '/baz_/$bazid/edit',
+  path: '/baz/$bazid/edit',
+  getParentRoute: () => NonNestedRouteRoute,
+} as any)
 const ParamsPsNamedFooBarRouteRoute =
   ParamsPsNamedFooBarRouteRouteImport.update({
     id: '/$bar',
@@ -439,6 +463,7 @@ const ParamsPsNamedFooBarBazRoute = ParamsPsNamedFooBarBazRouteImport.update({
 
 export interface FileRoutesByFullPath {
   '/': typeof groupLayoutRouteWithChildren
+  '/non-nested': typeof NonNestedRouteRouteWithChildren
   '/search-params': typeof SearchParamsRouteRouteWithChildren
   '/anchor': typeof AnchorRoute
   '/component-types-test': typeof ComponentTypesTestRoute
@@ -454,6 +479,7 @@ export interface FileRoutesByFullPath {
   '/onlyrouteinside': typeof anotherGroupOnlyrouteinsideRoute
   '/inside': typeof groupInsideRoute
   '/lazyinside': typeof groupLazyinsideRoute
+  '/non-nested/baz': typeof NonNestedBazRouteWithChildren
   '/posts/$postId': typeof PostsPostIdRoute
   '/redirect/$target': typeof RedirectTargetRouteWithChildren
   '/search-params/default': typeof SearchParamsDefaultRoute
@@ -469,6 +495,7 @@ export interface FileRoutesByFullPath {
   '/subfolder/inside': typeof groupSubfolderInsideRoute
   '/layout-a': typeof LayoutLayout2LayoutARoute
   '/layout-b': typeof LayoutLayout2LayoutBRoute
+  '/non-nested/baz/$bazid': typeof NonNestedBazBazidRoute
   '/params-ps/named/prefix{$foo}': typeof ParamsPsNamedPrefixChar123fooChar125Route
   '/params-ps/named/{$foo}suffix': typeof ParamsPsNamedChar123fooChar125suffixRoute
   '/params-ps/wildcard/$': typeof ParamsPsWildcardSplatRoute
@@ -489,6 +516,7 @@ export interface FileRoutesByFullPath {
   '/params-ps/wildcard': typeof ParamsPsWildcardIndexRoute
   '/redirect/$target/': typeof RedirectTargetIndexRoute
   '/params-ps/named/$foo/$bar': typeof ParamsPsNamedFooBarRouteRouteWithChildren
+  '/non-nested/baz/$bazid/edit': typeof NonNestedBazBazidEditRoute
   '/params-ps/non-nested/$foo/$bar': typeof ParamsPsNonNestedFooBarRoute
   '/relative/link/nested': typeof RelativeLinkNestedIndexRoute
   '/relative/link/path': typeof RelativeLinkPathIndexRoute
@@ -504,6 +532,7 @@ export interface FileRoutesByFullPath {
 }
 export interface FileRoutesByTo {
   '/': typeof groupLayoutRouteWithChildren
+  '/non-nested': typeof NonNestedRouteRouteWithChildren
   '/anchor': typeof AnchorRoute
   '/component-types-test': typeof ComponentTypesTestRoute
   '/editing-a': typeof EditingARoute
@@ -517,6 +546,7 @@ export interface FileRoutesByTo {
   '/onlyrouteinside': typeof anotherGroupOnlyrouteinsideRoute
   '/inside': typeof groupInsideRoute
   '/lazyinside': typeof groupLazyinsideRoute
+  '/non-nested/baz': typeof NonNestedBazRouteWithChildren
   '/posts/$postId': typeof PostsPostIdRoute
   '/search-params/default': typeof SearchParamsDefaultRoute
   '/structural-sharing/$enabled': typeof StructuralSharingEnabledRoute
@@ -531,6 +561,7 @@ export interface FileRoutesByTo {
   '/subfolder/inside': typeof groupSubfolderInsideRoute
   '/layout-a': typeof LayoutLayout2LayoutARoute
   '/layout-b': typeof LayoutLayout2LayoutBRoute
+  '/non-nested/baz/$bazid': typeof NonNestedBazBazidRoute
   '/params-ps/named/prefix{$foo}': typeof ParamsPsNamedPrefixChar123fooChar125Route
   '/params-ps/named/{$foo}suffix': typeof ParamsPsNamedChar123fooChar125suffixRoute
   '/params-ps/wildcard/$': typeof ParamsPsWildcardSplatRoute
@@ -551,6 +582,7 @@ export interface FileRoutesByTo {
   '/params-ps/wildcard': typeof ParamsPsWildcardIndexRoute
   '/redirect/$target': typeof RedirectTargetIndexRoute
   '/params-ps/named/$foo/$bar': typeof ParamsPsNamedFooBarRouteRouteWithChildren
+  '/non-nested/baz/$bazid/edit': typeof NonNestedBazBazidEditRoute
   '/params-ps/non-nested/$foo/$bar': typeof ParamsPsNonNestedFooBarRoute
   '/relative/link/nested': typeof RelativeLinkNestedIndexRoute
   '/relative/link/path': typeof RelativeLinkPathIndexRoute
@@ -567,6 +599,7 @@ export interface FileRoutesByTo {
 export interface FileRoutesById {
   __root__: typeof rootRouteImport
   '/': typeof IndexRoute
+  '/non-nested': typeof NonNestedRouteRouteWithChildren
   '/search-params': typeof SearchParamsRouteRouteWithChildren
   '/_layout': typeof LayoutRouteWithChildren
   '/anchor': typeof AnchorRoute
@@ -586,6 +619,7 @@ export interface FileRoutesById {
   '/(group)/inside': typeof groupInsideRoute
   '/(group)/lazyinside': typeof groupLazyinsideRoute
   '/_layout/_layout-2': typeof LayoutLayout2RouteWithChildren
+  '/non-nested/baz': typeof NonNestedBazRouteWithChildren
   '/posts/$postId': typeof PostsPostIdRoute
   '/redirect/$target': typeof RedirectTargetRouteWithChildren
   '/search-params/default': typeof SearchParamsDefaultRoute
@@ -601,6 +635,7 @@ export interface FileRoutesById {
   '/(group)/subfolder/inside': typeof groupSubfolderInsideRoute
   '/_layout/_layout-2/layout-a': typeof LayoutLayout2LayoutARoute
   '/_layout/_layout-2/layout-b': typeof LayoutLayout2LayoutBRoute
+  '/non-nested/baz/$bazid': typeof NonNestedBazBazidRoute
   '/params-ps/named/prefix{$foo}': typeof ParamsPsNamedPrefixChar123fooChar125Route
   '/params-ps/named/{$foo}suffix': typeof ParamsPsNamedChar123fooChar125suffixRoute
   '/params-ps/wildcard/$': typeof ParamsPsWildcardSplatRoute
@@ -621,6 +656,7 @@ export interface FileRoutesById {
   '/params-ps/wildcard/': typeof ParamsPsWildcardIndexRoute
   '/redirect/$target/': typeof RedirectTargetIndexRoute
   '/params-ps/named/$foo/$bar': typeof ParamsPsNamedFooBarRouteRouteWithChildren
+  '/non-nested/baz_/$bazid/edit': typeof NonNestedBazBazidEditRoute
   '/params-ps/non-nested/$foo_/$bar': typeof ParamsPsNonNestedFooBarRoute
   '/relative/link/nested/': typeof RelativeLinkNestedIndexRoute
   '/relative/link/path/': typeof RelativeLinkPathIndexRoute
@@ -638,6 +674,7 @@ export interface FileRouteTypes {
   fileRoutesByFullPath: FileRoutesByFullPath
   fullPaths:
     | '/'
+    | '/non-nested'
     | '/search-params'
     | '/anchor'
     | '/component-types-test'
@@ -653,6 +690,7 @@ export interface FileRouteTypes {
     | '/onlyrouteinside'
     | '/inside'
     | '/lazyinside'
+    | '/non-nested/baz'
     | '/posts/$postId'
     | '/redirect/$target'
     | '/search-params/default'
@@ -668,6 +706,7 @@ export interface FileRouteTypes {
     | '/subfolder/inside'
     | '/layout-a'
     | '/layout-b'
+    | '/non-nested/baz/$bazid'
     | '/params-ps/named/prefix{$foo}'
     | '/params-ps/named/{$foo}suffix'
     | '/params-ps/wildcard/$'
@@ -688,6 +727,7 @@ export interface FileRouteTypes {
     | '/params-ps/wildcard'
     | '/redirect/$target/'
     | '/params-ps/named/$foo/$bar'
+    | '/non-nested/baz/$bazid/edit'
     | '/params-ps/non-nested/$foo/$bar'
     | '/relative/link/nested'
     | '/relative/link/path'
@@ -703,6 +743,7 @@ export interface FileRouteTypes {
   fileRoutesByTo: FileRoutesByTo
   to:
     | '/'
+    | '/non-nested'
     | '/anchor'
     | '/component-types-test'
     | '/editing-a'
@@ -716,6 +757,7 @@ export interface FileRouteTypes {
     | '/onlyrouteinside'
     | '/inside'
     | '/lazyinside'
+    | '/non-nested/baz'
     | '/posts/$postId'
     | '/search-params/default'
     | '/structural-sharing/$enabled'
@@ -730,6 +772,7 @@ export interface FileRouteTypes {
     | '/subfolder/inside'
     | '/layout-a'
     | '/layout-b'
+    | '/non-nested/baz/$bazid'
     | '/params-ps/named/prefix{$foo}'
     | '/params-ps/named/{$foo}suffix'
     | '/params-ps/wildcard/$'
@@ -750,6 +793,7 @@ export interface FileRouteTypes {
     | '/params-ps/wildcard'
     | '/redirect/$target'
     | '/params-ps/named/$foo/$bar'
+    | '/non-nested/baz/$bazid/edit'
     | '/params-ps/non-nested/$foo/$bar'
     | '/relative/link/nested'
     | '/relative/link/path'
@@ -765,6 +809,7 @@ export interface FileRouteTypes {
   id:
     | '__root__'
     | '/'
+    | '/non-nested'
     | '/search-params'
     | '/_layout'
     | '/anchor'
@@ -784,6 +829,7 @@ export interface FileRouteTypes {
     | '/(group)/inside'
     | '/(group)/lazyinside'
     | '/_layout/_layout-2'
+    | '/non-nested/baz'
     | '/posts/$postId'
     | '/redirect/$target'
     | '/search-params/default'
@@ -799,6 +845,7 @@ export interface FileRouteTypes {
     | '/(group)/subfolder/inside'
     | '/_layout/_layout-2/layout-a'
     | '/_layout/_layout-2/layout-b'
+    | '/non-nested/baz/$bazid'
     | '/params-ps/named/prefix{$foo}'
     | '/params-ps/named/{$foo}suffix'
     | '/params-ps/wildcard/$'
@@ -819,6 +866,7 @@ export interface FileRouteTypes {
     | '/params-ps/wildcard/'
     | '/redirect/$target/'
     | '/params-ps/named/$foo/$bar'
+    | '/non-nested/baz_/$bazid/edit'
     | '/params-ps/non-nested/$foo_/$bar'
     | '/relative/link/nested/'
     | '/relative/link/path/'
@@ -835,6 +883,7 @@ export interface FileRouteTypes {
 }
 export interface RootRouteChildren {
   IndexRoute: typeof IndexRoute
+  NonNestedRouteRoute: typeof NonNestedRouteRouteWithChildren
   SearchParamsRouteRoute: typeof SearchParamsRouteRouteWithChildren
   LayoutRoute: typeof LayoutRouteWithChildren
   AnchorRoute: typeof AnchorRoute
@@ -949,6 +998,13 @@ declare module '@tanstack/react-router' {
       preLoaderRoute: typeof SearchParamsRouteRouteImport
       parentRoute: typeof rootRouteImport
     }
+    '/non-nested': {
+      id: '/non-nested'
+      path: '/non-nested'
+      fullPath: '/non-nested'
+      preLoaderRoute: typeof NonNestedRouteRouteImport
+      parentRoute: typeof rootRouteImport
+    }
     '/': {
       id: '/'
       path: '/'
@@ -1019,6 +1075,13 @@ declare module '@tanstack/react-router' {
       preLoaderRoute: typeof PostsPostIdRouteImport
       parentRoute: typeof PostsRoute
     }
+    '/non-nested/baz': {
+      id: '/non-nested/baz'
+      path: '/baz'
+      fullPath: '/non-nested/baz'
+      preLoaderRoute: typeof NonNestedBazRouteImport
+      parentRoute: typeof NonNestedRouteRoute
+    }
     '/_layout/_layout-2': {
       id: '/_layout/_layout-2'
       path: ''
@@ -1208,6 +1271,13 @@ declare module '@tanstack/react-router' {
       preLoaderRoute: typeof ParamsPsNamedPrefixChar123fooChar125RouteImport
       parentRoute: typeof rootRouteImport
     }
+    '/non-nested/baz/$bazid': {
+      id: '/non-nested/baz/$bazid'
+      path: '/$bazid'
+      fullPath: '/non-nested/baz/$bazid'
+      preLoaderRoute: typeof NonNestedBazBazidRouteImport
+      parentRoute: typeof NonNestedBazRoute
+    }
     '/_layout/_layout-2/layout-b': {
       id: '/_layout/_layout-2/layout-b'
       path: '/layout-b'
@@ -1299,6 +1369,13 @@ declare module '@tanstack/react-router' {
       preLoaderRoute: typeof ParamsPsNonNestedFooBarRouteImport
       parentRoute: typeof ParamsPsNonNestedFooRouteRoute
     }
+    '/non-nested/baz_/$bazid/edit': {
+      id: '/non-nested/baz_/$bazid/edit'
+      path: '/baz/$bazid/edit'
+      fullPath: '/non-nested/baz/$bazid/edit'
+      preLoaderRoute: typeof NonNestedBazBazidEditRouteImport
+      parentRoute: typeof NonNestedRouteRoute
+    }
     '/params-ps/named/$foo/$bar': {
       id: '/params-ps/named/$foo/$bar'
       path: '/$bar'
@@ -1344,6 +1421,32 @@ declare module '@tanstack/react-router' {
   }
 }
 
+interface NonNestedBazRouteChildren {
+  NonNestedBazBazidRoute: typeof NonNestedBazBazidRoute
+}
+
+const NonNestedBazRouteChildren: NonNestedBazRouteChildren = {
+  NonNestedBazBazidRoute: NonNestedBazBazidRoute,
+}
+
+const NonNestedBazRouteWithChildren = NonNestedBazRoute._addFileChildren(
+  NonNestedBazRouteChildren,
+)
+
+interface NonNestedRouteRouteChildren {
+  NonNestedBazRoute: typeof NonNestedBazRouteWithChildren
+  NonNestedBazBazidEditRoute: typeof NonNestedBazBazidEditRoute
+}
+
+const NonNestedRouteRouteChildren: NonNestedRouteRouteChildren = {
+  NonNestedBazRoute: NonNestedBazRouteWithChildren,
+  NonNestedBazBazidEditRoute: NonNestedBazBazidEditRoute,
+}
+
+const NonNestedRouteRouteWithChildren = NonNestedRouteRoute._addFileChildren(
+  NonNestedRouteRouteChildren,
+)
+
 interface SearchParamsRouteRouteChildren {
   SearchParamsDefaultRoute: typeof SearchParamsDefaultRoute
   SearchParamsIndexRoute: typeof SearchParamsIndexRoute
@@ -1549,6 +1652,7 @@ const ParamsPsNamedFooRouteRouteWithChildren =
 
 const rootRouteChildren: RootRouteChildren = {
   IndexRoute: IndexRoute,
+  NonNestedRouteRoute: NonNestedRouteRouteWithChildren,
   SearchParamsRouteRoute: SearchParamsRouteRouteWithChildren,
   LayoutRoute: LayoutRouteWithChildren,
   AnchorRoute: AnchorRoute,
diff --git a/e2e/react-router/basic-file-based/src/routes/non-nested/baz.$bazid.tsx b/e2e/react-router/basic-file-based/src/routes/non-nested/baz.$bazid.tsx
new file mode 100644
index 00000000000..7160b5d7aa6
--- /dev/null
+++ b/e2e/react-router/basic-file-based/src/routes/non-nested/baz.$bazid.tsx
@@ -0,0 +1,23 @@
+import { createFileRoute } from '@tanstack/react-router'
+
+export const Route = createFileRoute('/non-nested/baz/$bazid')({
+  component: RouteComponent,
+})
+
+function RouteComponent() {
+  const params = Route.useParams()
+
+  return (
+    <>
+      <div data-testid="non-nested-bazid-heading">
+        Hello "/non-nested/baz/$bazid"!
+      </div>
+      <div>
+        params:{' '}
+        <span data-testid="non-nested-bazid-param">
+          {JSON.stringify(params)}
+        </span>
+      </div>
+    </>
+  )
+}
diff --git a/e2e/react-router/basic-file-based/src/routes/non-nested/baz.tsx b/e2e/react-router/basic-file-based/src/routes/non-nested/baz.tsx
new file mode 100644
index 00000000000..149903da04c
--- /dev/null
+++ b/e2e/react-router/basic-file-based/src/routes/non-nested/baz.tsx
@@ -0,0 +1,14 @@
+import { Outlet, createFileRoute } from '@tanstack/react-router'
+
+export const Route = createFileRoute('/non-nested/baz')({
+  component: RouteComponent,
+})
+
+function RouteComponent() {
+  return (
+    <>
+      <div data-testid="non-nested-baz-heading">Hello "/non-nested/baz"!</div>
+      <Outlet />
+    </>
+  )
+}
diff --git a/e2e/react-router/basic-file-based/src/routes/non-nested/baz_.$bazid.edit.tsx b/e2e/react-router/basic-file-based/src/routes/non-nested/baz_.$bazid.edit.tsx
new file mode 100644
index 00000000000..491385c9901
--- /dev/null
+++ b/e2e/react-router/basic-file-based/src/routes/non-nested/baz_.$bazid.edit.tsx
@@ -0,0 +1,22 @@
+import { createFileRoute } from '@tanstack/react-router'
+
+export const Route = createFileRoute('/non-nested/baz_/$bazid/edit')({
+  component: RouteComponent,
+})
+
+function RouteComponent() {
+  const params = Route.useParams()
+  return (
+    <>
+      <div data-testid="non-nested-bazid-edit-heading">
+        Hello "/non-nested/baz_/$bazid/edit"!
+      </div>
+      <div>
+        params:{' '}
+        <span data-testid="non-nested-bazid-edit-param">
+          {JSON.stringify(params)}
+        </span>
+      </div>
+    </>
+  )
+}
diff --git a/e2e/react-router/basic-file-based/src/routes/non-nested/route.tsx b/e2e/react-router/basic-file-based/src/routes/non-nested/route.tsx
new file mode 100644
index 00000000000..83a42874acb
--- /dev/null
+++ b/e2e/react-router/basic-file-based/src/routes/non-nested/route.tsx
@@ -0,0 +1,38 @@
+import { Link, Outlet, createFileRoute } from '@tanstack/react-router'
+
+export const Route = createFileRoute('/non-nested')({
+  component: RouteComponent,
+})
+
+function RouteComponent() {
+  return (
+    <div>
+      <h3 className="pb-2" data-testid="non-nested-path-heading">
+        Non-nested paths
+      </h3>
+      <ul className="grid mb-2">
+        <li>
+          <Link
+            from={Route.fullPath}
+            data-testid="l-to-non-nested-bazid"
+            to="./baz/$bazid"
+            params={{ bazid: '123' }}
+          >
+            /non-nested/baz/123
+          </Link>
+        </li>
+        <li>
+          <Link
+            from={Route.fullPath}
+            data-testid="l-to-non-nested-bazid-edit"
+            to="./baz/$bazid/edit"
+            params={{ bazid: '456' }}
+          >
+            /non-nested/baz/456/edit
+          </Link>
+        </li>
+      </ul>
+      <Outlet />
+    </div>
+  )
+}
diff --git a/e2e/react-router/basic-file-based/tests/app.spec.ts b/e2e/react-router/basic-file-based/tests/app.spec.ts
index d825ca7b51f..38de31e8299 100644
--- a/e2e/react-router/basic-file-based/tests/app.spec.ts
+++ b/e2e/react-router/basic-file-based/tests/app.spec.ts
@@ -308,3 +308,38 @@ test('Should remount deps when remountDeps does change ', async ({ page }) => {
     'Page component mounts: 2',
   )
 })
+
+test('Should not nest non-nested paths', async ({ page }) => {
+  await page.goto('/non-nested')
+  await page.waitForURL('/non-nested')
+  const nonNestedPathHeading = page.getByTestId('non-nested-path-heading')
+  const bazIdLink = page.getByTestId('l-to-non-nested-bazid')
+  const bazIdEditLink = page.getByTestId('l-to-non-nested-bazid-edit')
+
+  await expect(nonNestedPathHeading).toBeInViewport()
+  await expect(bazIdLink).toHaveAttribute('href', '/non-nested/baz/123')
+  await expect(bazIdEditLink).toHaveAttribute(
+    'href',
+    '/non-nested/baz/456/edit',
+  )
+
+  await bazIdLink.click()
+  await page.waitForURL('/non-nested/baz/123')
+  const bazHeading = page.getByTestId('non-nested-baz-heading')
+  const bazIdHeading = page.getByTestId('non-nested-bazid-heading')
+  const bazIdParam = page.getByTestId('non-nested-bazid-param')
+  await expect(nonNestedPathHeading).toBeInViewport()
+  await expect(bazHeading).toBeInViewport()
+  await expect(bazIdHeading).toBeInViewport()
+  await expect(bazIdParam).toContainText(JSON.stringify({ bazid: '123' }))
+
+  await bazIdEditLink.click()
+  await page.waitForURL('/non-nested/baz/456/edit')
+  const bazIdEditHeading = page.getByTestId('non-nested-bazid-edit-heading')
+  const bazIdEditParam = page.getByTestId('non-nested-bazid-edit-param')
+  await expect(nonNestedPathHeading).toBeInViewport()
+  await expect(bazHeading).toBeHidden()
+  await expect(bazIdHeading).toBeHidden()
+  await expect(bazIdEditHeading).toBeInViewport()
+  await expect(bazIdEditParam).toContainText(JSON.stringify({ bazid: '456' }))
+})
diff --git a/e2e/solid-router/basic-file-based/src/routeTree.gen.ts b/e2e/solid-router/basic-file-based/src/routeTree.gen.ts
index f4b02f10a84..23092968648 100644
--- a/e2e/solid-router/basic-file-based/src/routeTree.gen.ts
+++ b/e2e/solid-router/basic-file-based/src/routeTree.gen.ts
@@ -20,6 +20,7 @@ import { Route as ComponentTypesTestRouteImport } from './routes/component-types
 import { Route as AnchorRouteImport } from './routes/anchor'
 import { Route as LayoutRouteImport } from './routes/_layout'
 import { Route as SearchParamsRouteRouteImport } from './routes/search-params/route'
+import { Route as NonNestedRouteRouteImport } from './routes/non-nested/route'
 import { Route as IndexRouteImport } from './routes/index'
 import { Route as SearchParamsIndexRouteImport } from './routes/search-params/index'
 import { Route as RelativeIndexRouteImport } from './routes/relative/index'
@@ -29,6 +30,7 @@ import { Route as ParamsPsIndexRouteImport } from './routes/params-ps/index'
 import { Route as SearchParamsDefaultRouteImport } from './routes/search-params/default'
 import { Route as RedirectTargetRouteImport } from './routes/redirect/$target'
 import { Route as PostsPostIdRouteImport } from './routes/posts.$postId'
+import { Route as NonNestedBazRouteImport } from './routes/non-nested/baz'
 import { Route as LayoutLayout2RouteImport } from './routes/_layout/_layout-2'
 import { Route as groupLazyinsideRouteImport } from './routes/(group)/lazyinside'
 import { Route as groupInsideRouteImport } from './routes/(group)/inside'
@@ -49,6 +51,7 @@ import { Route as RedirectTargetViaLoaderRouteImport } from './routes/redirect/$
 import { Route as RedirectTargetViaBeforeLoadRouteImport } from './routes/redirect/$target/via-beforeLoad'
 import { Route as PostsPostIdEditRouteImport } from './routes/posts_.$postId.edit'
 import { Route as ParamsSingleValueRouteImport } from './routes/params.single.$value'
+import { Route as NonNestedBazBazidRouteImport } from './routes/non-nested/baz.$bazid'
 import { Route as LayoutLayout2LayoutBRouteImport } from './routes/_layout/_layout-2/layout-b'
 import { Route as LayoutLayout2LayoutARouteImport } from './routes/_layout/_layout-2/layout-a'
 import { Route as groupSubfolderInsideRouteImport } from './routes/(group)/subfolder/inside'
@@ -62,6 +65,7 @@ import { Route as RelativeLinkWithSearchIndexRouteImport } from './routes/relati
 import { Route as RelativeLinkPathIndexRouteImport } from './routes/relative/link/path/index'
 import { Route as RelativeLinkNestedIndexRouteImport } from './routes/relative/link/nested/index'
 import { Route as ParamsPsNonNestedFooBarRouteImport } from './routes/params-ps/non-nested/$foo_/$bar'
+import { Route as NonNestedBazBazidEditRouteImport } from './routes/non-nested/baz_.$bazid.edit'
 import { Route as ParamsPsNamedFooBarRouteRouteImport } from './routes/params-ps/named/$foo/$bar.route'
 import { Route as RelativeUseNavigatePathPathIndexRouteImport } from './routes/relative/useNavigate/path/$path/index'
 import { Route as RelativeUseNavigateNestedDeepIndexRouteImport } from './routes/relative/useNavigate/nested/deep/index'
@@ -119,6 +123,11 @@ const SearchParamsRouteRoute = SearchParamsRouteRouteImport.update({
   path: '/search-params',
   getParentRoute: () => rootRouteImport,
 } as any)
+const NonNestedRouteRoute = NonNestedRouteRouteImport.update({
+  id: '/non-nested',
+  path: '/non-nested',
+  getParentRoute: () => rootRouteImport,
+} as any)
 const IndexRoute = IndexRouteImport.update({
   id: '/',
   path: '/',
@@ -164,6 +173,11 @@ const PostsPostIdRoute = PostsPostIdRouteImport.update({
   path: '/$postId',
   getParentRoute: () => PostsRoute,
 } as any)
+const NonNestedBazRoute = NonNestedBazRouteImport.update({
+  id: '/baz',
+  path: '/baz',
+  getParentRoute: () => NonNestedRouteRoute,
+} as any)
 const LayoutLayout2Route = LayoutLayout2RouteImport.update({
   id: '/_layout-2',
   getParentRoute: () => LayoutRoute,
@@ -271,6 +285,11 @@ const ParamsSingleValueRoute = ParamsSingleValueRouteImport.update({
   path: '/params/single/$value',
   getParentRoute: () => rootRouteImport,
 } as any)
+const NonNestedBazBazidRoute = NonNestedBazBazidRouteImport.update({
+  id: '/$bazid',
+  path: '/$bazid',
+  getParentRoute: () => NonNestedBazRoute,
+} as any)
 const LayoutLayout2LayoutBRoute = LayoutLayout2LayoutBRouteImport.update({
   id: '/layout-b',
   path: '/layout-b',
@@ -341,6 +360,11 @@ const ParamsPsNonNestedFooBarRoute = ParamsPsNonNestedFooBarRouteImport.update({
   path: '/$bar',
   getParentRoute: () => ParamsPsNonNestedFooRouteRoute,
 } as any)
+const NonNestedBazBazidEditRoute = NonNestedBazBazidEditRouteImport.update({
+  id: '/baz_/$bazid/edit',
+  path: '/baz/$bazid/edit',
+  getParentRoute: () => NonNestedRouteRoute,
+} as any)
 const ParamsPsNamedFooBarRouteRoute =
   ParamsPsNamedFooBarRouteRouteImport.update({
     id: '/$bar',
@@ -379,6 +403,7 @@ const ParamsPsNamedFooBarBazRoute = ParamsPsNamedFooBarBazRouteImport.update({
 
 export interface FileRoutesByFullPath {
   '/': typeof groupLayoutRouteWithChildren
+  '/non-nested': typeof NonNestedRouteRouteWithChildren
   '/search-params': typeof SearchParamsRouteRouteWithChildren
   '/anchor': typeof AnchorRoute
   '/component-types-test': typeof ComponentTypesTestRoute
@@ -393,6 +418,7 @@ export interface FileRoutesByFullPath {
   '/onlyrouteinside': typeof anotherGroupOnlyrouteinsideRoute
   '/inside': typeof groupInsideRoute
   '/lazyinside': typeof groupLazyinsideRoute
+  '/non-nested/baz': typeof NonNestedBazRouteWithChildren
   '/posts/$postId': typeof PostsPostIdRoute
   '/redirect/$target': typeof RedirectTargetRouteWithChildren
   '/search-params/default': typeof SearchParamsDefaultRoute
@@ -407,6 +433,7 @@ export interface FileRoutesByFullPath {
   '/subfolder/inside': typeof groupSubfolderInsideRoute
   '/layout-a': typeof LayoutLayout2LayoutARoute
   '/layout-b': typeof LayoutLayout2LayoutBRoute
+  '/non-nested/baz/$bazid': typeof NonNestedBazBazidRoute
   '/params/single/$value': typeof ParamsSingleValueRoute
   '/posts/$postId/edit': typeof PostsPostIdEditRoute
   '/redirect/$target/via-beforeLoad': typeof RedirectTargetViaBeforeLoadRoute
@@ -420,6 +447,7 @@ export interface FileRoutesByFullPath {
   '/relative/useNavigate/relative-useNavigate-b': typeof RelativeUseNavigateRelativeUseNavigateBRoute
   '/redirect/$target/': typeof RedirectTargetIndexRoute
   '/params-ps/named/$foo/$bar': typeof ParamsPsNamedFooBarRouteRouteWithChildren
+  '/non-nested/baz/$bazid/edit': typeof NonNestedBazBazidEditRoute
   '/params-ps/non-nested/$foo/$bar': typeof ParamsPsNonNestedFooBarRoute
   '/relative/link/nested': typeof RelativeLinkNestedIndexRoute
   '/relative/link/path': typeof RelativeLinkPathIndexRoute
@@ -435,6 +463,7 @@ export interface FileRoutesByFullPath {
 }
 export interface FileRoutesByTo {
   '/': typeof groupLayoutRouteWithChildren
+  '/non-nested': typeof NonNestedRouteRouteWithChildren
   '/anchor': typeof AnchorRoute
   '/component-types-test': typeof ComponentTypesTestRoute
   '/editing-a': typeof EditingARoute
@@ -447,6 +476,7 @@ export interface FileRoutesByTo {
   '/onlyrouteinside': typeof anotherGroupOnlyrouteinsideRoute
   '/inside': typeof groupInsideRoute
   '/lazyinside': typeof groupLazyinsideRoute
+  '/non-nested/baz': typeof NonNestedBazRouteWithChildren
   '/posts/$postId': typeof PostsPostIdRoute
   '/search-params/default': typeof SearchParamsDefaultRoute
   '/params-ps': typeof ParamsPsIndexRoute
@@ -460,6 +490,7 @@ export interface FileRoutesByTo {
   '/subfolder/inside': typeof groupSubfolderInsideRoute
   '/layout-a': typeof LayoutLayout2LayoutARoute
   '/layout-b': typeof LayoutLayout2LayoutBRoute
+  '/non-nested/baz/$bazid': typeof NonNestedBazBazidRoute
   '/params/single/$value': typeof ParamsSingleValueRoute
   '/posts/$postId/edit': typeof PostsPostIdEditRoute
   '/redirect/$target/via-beforeLoad': typeof RedirectTargetViaBeforeLoadRoute
@@ -473,6 +504,7 @@ export interface FileRoutesByTo {
   '/relative/useNavigate/relative-useNavigate-b': typeof RelativeUseNavigateRelativeUseNavigateBRoute
   '/redirect/$target': typeof RedirectTargetIndexRoute
   '/params-ps/named/$foo/$bar': typeof ParamsPsNamedFooBarRouteRouteWithChildren
+  '/non-nested/baz/$bazid/edit': typeof NonNestedBazBazidEditRoute
   '/params-ps/non-nested/$foo/$bar': typeof ParamsPsNonNestedFooBarRoute
   '/relative/link/nested': typeof RelativeLinkNestedIndexRoute
   '/relative/link/path': typeof RelativeLinkPathIndexRoute
@@ -489,6 +521,7 @@ export interface FileRoutesByTo {
 export interface FileRoutesById {
   __root__: typeof rootRouteImport
   '/': typeof IndexRoute
+  '/non-nested': typeof NonNestedRouteRouteWithChildren
   '/search-params': typeof SearchParamsRouteRouteWithChildren
   '/_layout': typeof LayoutRouteWithChildren
   '/anchor': typeof AnchorRoute
@@ -507,6 +540,7 @@ export interface FileRoutesById {
   '/(group)/inside': typeof groupInsideRoute
   '/(group)/lazyinside': typeof groupLazyinsideRoute
   '/_layout/_layout-2': typeof LayoutLayout2RouteWithChildren
+  '/non-nested/baz': typeof NonNestedBazRouteWithChildren
   '/posts/$postId': typeof PostsPostIdRoute
   '/redirect/$target': typeof RedirectTargetRouteWithChildren
   '/search-params/default': typeof SearchParamsDefaultRoute
@@ -521,6 +555,7 @@ export interface FileRoutesById {
   '/(group)/subfolder/inside': typeof groupSubfolderInsideRoute
   '/_layout/_layout-2/layout-a': typeof LayoutLayout2LayoutARoute
   '/_layout/_layout-2/layout-b': typeof LayoutLayout2LayoutBRoute
+  '/non-nested/baz/$bazid': typeof NonNestedBazBazidRoute
   '/params/single/$value': typeof ParamsSingleValueRoute
   '/posts_/$postId/edit': typeof PostsPostIdEditRoute
   '/redirect/$target/via-beforeLoad': typeof RedirectTargetViaBeforeLoadRoute
@@ -534,6 +569,7 @@ export interface FileRoutesById {
   '/relative/useNavigate/relative-useNavigate-b': typeof RelativeUseNavigateRelativeUseNavigateBRoute
   '/redirect/$target/': typeof RedirectTargetIndexRoute
   '/params-ps/named/$foo/$bar': typeof ParamsPsNamedFooBarRouteRouteWithChildren
+  '/non-nested/baz_/$bazid/edit': typeof NonNestedBazBazidEditRoute
   '/params-ps/non-nested/$foo_/$bar': typeof ParamsPsNonNestedFooBarRoute
   '/relative/link/nested/': typeof RelativeLinkNestedIndexRoute
   '/relative/link/path/': typeof RelativeLinkPathIndexRoute
@@ -551,6 +587,7 @@ export interface FileRouteTypes {
   fileRoutesByFullPath: FileRoutesByFullPath
   fullPaths:
     | '/'
+    | '/non-nested'
     | '/search-params'
     | '/anchor'
     | '/component-types-test'
@@ -565,6 +602,7 @@ export interface FileRouteTypes {
     | '/onlyrouteinside'
     | '/inside'
     | '/lazyinside'
+    | '/non-nested/baz'
     | '/posts/$postId'
     | '/redirect/$target'
     | '/search-params/default'
@@ -579,6 +617,7 @@ export interface FileRouteTypes {
     | '/subfolder/inside'
     | '/layout-a'
     | '/layout-b'
+    | '/non-nested/baz/$bazid'
     | '/params/single/$value'
     | '/posts/$postId/edit'
     | '/redirect/$target/via-beforeLoad'
@@ -592,6 +631,7 @@ export interface FileRouteTypes {
     | '/relative/useNavigate/relative-useNavigate-b'
     | '/redirect/$target/'
     | '/params-ps/named/$foo/$bar'
+    | '/non-nested/baz/$bazid/edit'
     | '/params-ps/non-nested/$foo/$bar'
     | '/relative/link/nested'
     | '/relative/link/path'
@@ -607,6 +647,7 @@ export interface FileRouteTypes {
   fileRoutesByTo: FileRoutesByTo
   to:
     | '/'
+    | '/non-nested'
     | '/anchor'
     | '/component-types-test'
     | '/editing-a'
@@ -619,6 +660,7 @@ export interface FileRouteTypes {
     | '/onlyrouteinside'
     | '/inside'
     | '/lazyinside'
+    | '/non-nested/baz'
     | '/posts/$postId'
     | '/search-params/default'
     | '/params-ps'
@@ -632,6 +674,7 @@ export interface FileRouteTypes {
     | '/subfolder/inside'
     | '/layout-a'
     | '/layout-b'
+    | '/non-nested/baz/$bazid'
     | '/params/single/$value'
     | '/posts/$postId/edit'
     | '/redirect/$target/via-beforeLoad'
@@ -645,6 +688,7 @@ export interface FileRouteTypes {
     | '/relative/useNavigate/relative-useNavigate-b'
     | '/redirect/$target'
     | '/params-ps/named/$foo/$bar'
+    | '/non-nested/baz/$bazid/edit'
     | '/params-ps/non-nested/$foo/$bar'
     | '/relative/link/nested'
     | '/relative/link/path'
@@ -660,6 +704,7 @@ export interface FileRouteTypes {
   id:
     | '__root__'
     | '/'
+    | '/non-nested'
     | '/search-params'
     | '/_layout'
     | '/anchor'
@@ -678,6 +723,7 @@ export interface FileRouteTypes {
     | '/(group)/inside'
     | '/(group)/lazyinside'
     | '/_layout/_layout-2'
+    | '/non-nested/baz'
     | '/posts/$postId'
     | '/redirect/$target'
     | '/search-params/default'
@@ -692,6 +738,7 @@ export interface FileRouteTypes {
     | '/(group)/subfolder/inside'
     | '/_layout/_layout-2/layout-a'
     | '/_layout/_layout-2/layout-b'
+    | '/non-nested/baz/$bazid'
     | '/params/single/$value'
     | '/posts_/$postId/edit'
     | '/redirect/$target/via-beforeLoad'
@@ -705,6 +752,7 @@ export interface FileRouteTypes {
     | '/relative/useNavigate/relative-useNavigate-b'
     | '/redirect/$target/'
     | '/params-ps/named/$foo/$bar'
+    | '/non-nested/baz_/$bazid/edit'
     | '/params-ps/non-nested/$foo_/$bar'
     | '/relative/link/nested/'
     | '/relative/link/path/'
@@ -721,6 +769,7 @@ export interface FileRouteTypes {
 }
 export interface RootRouteChildren {
   IndexRoute: typeof IndexRoute
+  NonNestedRouteRoute: typeof NonNestedRouteRouteWithChildren
   SearchParamsRouteRoute: typeof SearchParamsRouteRouteWithChildren
   LayoutRoute: typeof LayoutRouteWithChildren
   AnchorRoute: typeof AnchorRoute
@@ -819,6 +868,13 @@ declare module '@tanstack/solid-router' {
       preLoaderRoute: typeof SearchParamsRouteRouteImport
       parentRoute: typeof rootRouteImport
     }
+    '/non-nested': {
+      id: '/non-nested'
+      path: '/non-nested'
+      fullPath: '/non-nested'
+      preLoaderRoute: typeof NonNestedRouteRouteImport
+      parentRoute: typeof rootRouteImport
+    }
     '/': {
       id: '/'
       path: '/'
@@ -882,6 +938,13 @@ declare module '@tanstack/solid-router' {
       preLoaderRoute: typeof PostsPostIdRouteImport
       parentRoute: typeof PostsRoute
     }
+    '/non-nested/baz': {
+      id: '/non-nested/baz'
+      path: '/baz'
+      fullPath: '/non-nested/baz'
+      preLoaderRoute: typeof NonNestedBazRouteImport
+      parentRoute: typeof NonNestedRouteRoute
+    }
     '/_layout/_layout-2': {
       id: '/_layout/_layout-2'
       path: ''
@@ -1022,6 +1085,13 @@ declare module '@tanstack/solid-router' {
       preLoaderRoute: typeof ParamsSingleValueRouteImport
       parentRoute: typeof rootRouteImport
     }
+    '/non-nested/baz/$bazid': {
+      id: '/non-nested/baz/$bazid'
+      path: '/$bazid'
+      fullPath: '/non-nested/baz/$bazid'
+      preLoaderRoute: typeof NonNestedBazBazidRouteImport
+      parentRoute: typeof NonNestedBazRoute
+    }
     '/_layout/_layout-2/layout-b': {
       id: '/_layout/_layout-2/layout-b'
       path: '/layout-b'
@@ -1113,6 +1183,13 @@ declare module '@tanstack/solid-router' {
       preLoaderRoute: typeof ParamsPsNonNestedFooBarRouteImport
       parentRoute: typeof ParamsPsNonNestedFooRouteRoute
     }
+    '/non-nested/baz_/$bazid/edit': {
+      id: '/non-nested/baz_/$bazid/edit'
+      path: '/baz/$bazid/edit'
+      fullPath: '/non-nested/baz/$bazid/edit'
+      preLoaderRoute: typeof NonNestedBazBazidEditRouteImport
+      parentRoute: typeof NonNestedRouteRoute
+    }
     '/params-ps/named/$foo/$bar': {
       id: '/params-ps/named/$foo/$bar'
       path: '/$bar'
@@ -1158,6 +1235,32 @@ declare module '@tanstack/solid-router' {
   }
 }
 
+interface NonNestedBazRouteChildren {
+  NonNestedBazBazidRoute: typeof NonNestedBazBazidRoute
+}
+
+const NonNestedBazRouteChildren: NonNestedBazRouteChildren = {
+  NonNestedBazBazidRoute: NonNestedBazBazidRoute,
+}
+
+const NonNestedBazRouteWithChildren = NonNestedBazRoute._addFileChildren(
+  NonNestedBazRouteChildren,
+)
+
+interface NonNestedRouteRouteChildren {
+  NonNestedBazRoute: typeof NonNestedBazRouteWithChildren
+  NonNestedBazBazidEditRoute: typeof NonNestedBazBazidEditRoute
+}
+
+const NonNestedRouteRouteChildren: NonNestedRouteRouteChildren = {
+  NonNestedBazRoute: NonNestedBazRouteWithChildren,
+  NonNestedBazBazidEditRoute: NonNestedBazBazidEditRoute,
+}
+
+const NonNestedRouteRouteWithChildren = NonNestedRouteRoute._addFileChildren(
+  NonNestedRouteRouteChildren,
+)
+
 interface SearchParamsRouteRouteChildren {
   SearchParamsDefaultRoute: typeof SearchParamsDefaultRoute
   SearchParamsIndexRoute: typeof SearchParamsIndexRoute
@@ -1363,6 +1466,7 @@ const ParamsPsNamedFooRouteRouteWithChildren =
 
 const rootRouteChildren: RootRouteChildren = {
   IndexRoute: IndexRoute,
+  NonNestedRouteRoute: NonNestedRouteRouteWithChildren,
   SearchParamsRouteRoute: SearchParamsRouteRouteWithChildren,
   LayoutRoute: LayoutRouteWithChildren,
   AnchorRoute: AnchorRoute,
diff --git a/e2e/solid-router/basic-file-based/src/routes/non-nested/baz.$bazid.tsx b/e2e/solid-router/basic-file-based/src/routes/non-nested/baz.$bazid.tsx
new file mode 100644
index 00000000000..d43c79c7807
--- /dev/null
+++ b/e2e/solid-router/basic-file-based/src/routes/non-nested/baz.$bazid.tsx
@@ -0,0 +1,23 @@
+import { createFileRoute } from '@tanstack/solid-router'
+
+export const Route = createFileRoute('/non-nested/baz/$bazid')({
+  component: RouteComponent,
+})
+
+function RouteComponent() {
+  const params = Route.useParams()
+
+  return (
+    <>
+      <div data-testid="non-nested-bazid-heading">
+        Hello "/non-nested/baz/$bazid"!
+      </div>
+      <div>
+        params:{' '}
+        <span data-testid="non-nested-bazid-param">
+          {JSON.stringify(params())}
+        </span>
+      </div>
+    </>
+  )
+}
diff --git a/e2e/solid-router/basic-file-based/src/routes/non-nested/baz.tsx b/e2e/solid-router/basic-file-based/src/routes/non-nested/baz.tsx
new file mode 100644
index 00000000000..42e76f8e3a0
--- /dev/null
+++ b/e2e/solid-router/basic-file-based/src/routes/non-nested/baz.tsx
@@ -0,0 +1,14 @@
+import { Outlet, createFileRoute } from '@tanstack/solid-router'
+
+export const Route = createFileRoute('/non-nested/baz')({
+  component: RouteComponent,
+})
+
+function RouteComponent() {
+  return (
+    <>
+      <div data-testid="non-nested-baz-heading">Hello "/non-nested/baz"!</div>
+      <Outlet />
+    </>
+  )
+}
diff --git a/e2e/solid-router/basic-file-based/src/routes/non-nested/baz_.$bazid.edit.tsx b/e2e/solid-router/basic-file-based/src/routes/non-nested/baz_.$bazid.edit.tsx
new file mode 100644
index 00000000000..7cc0062d73c
--- /dev/null
+++ b/e2e/solid-router/basic-file-based/src/routes/non-nested/baz_.$bazid.edit.tsx
@@ -0,0 +1,22 @@
+import { createFileRoute } from '@tanstack/solid-router'
+
+export const Route = createFileRoute('/non-nested/baz_/$bazid/edit')({
+  component: RouteComponent,
+})
+
+function RouteComponent() {
+  const params = Route.useParams()
+  return (
+    <>
+      <div data-testid="non-nested-bazid-edit-heading">
+        Hello "/non-nested/baz_/$bazid/edit"!
+      </div>
+      <div>
+        params:{' '}
+        <span data-testid="non-nested-bazid-edit-param">
+          {JSON.stringify(params())}
+        </span>
+      </div>
+    </>
+  )
+}
diff --git a/e2e/solid-router/basic-file-based/src/routes/non-nested/route.tsx b/e2e/solid-router/basic-file-based/src/routes/non-nested/route.tsx
new file mode 100644
index 00000000000..f63bb147172
--- /dev/null
+++ b/e2e/solid-router/basic-file-based/src/routes/non-nested/route.tsx
@@ -0,0 +1,38 @@
+import { Link, Outlet, createFileRoute } from '@tanstack/solid-router'
+
+export const Route = createFileRoute('/non-nested')({
+  component: RouteComponent,
+})
+
+function RouteComponent() {
+  return (
+    <div>
+      <h3 class="pb-2" data-testid="non-nested-path-heading">
+        Non-nested paths
+      </h3>
+      <ul class="grid mb-2">
+        <li>
+          <Link
+            from={Route.fullPath}
+            data-testid="l-to-non-nested-bazid"
+            to="./baz/$bazid"
+            params={{ bazid: '123' }}
+          >
+            /non-nested/baz/123
+          </Link>
+        </li>
+        <li>
+          <Link
+            from={Route.fullPath}
+            data-testid="l-to-non-nested-bazid-edit"
+            to="./baz/$bazid/edit"
+            params={{ bazid: '456' }}
+          >
+            /non-nested/baz/456/edit
+          </Link>
+        </li>
+      </ul>
+      <Outlet />
+    </div>
+  )
+}
diff --git a/e2e/solid-router/basic-file-based/tests/app.spec.ts b/e2e/solid-router/basic-file-based/tests/app.spec.ts
index c0b1b69dc59..2b0ffa17a9b 100644
--- a/e2e/solid-router/basic-file-based/tests/app.spec.ts
+++ b/e2e/solid-router/basic-file-based/tests/app.spec.ts
@@ -296,3 +296,38 @@ test('Should remount deps when remountDeps does change ', async ({ page }) => {
     'Page component mounts: 2',
   )
 })
+
+test('Should not nest non-nested paths', async ({ page }) => {
+  await page.goto('/non-nested')
+  await page.waitForURL('/non-nested')
+  const nonNestedPathHeading = page.getByTestId('non-nested-path-heading')
+  const bazIdLink = page.getByTestId('l-to-non-nested-bazid')
+  const bazIdEditLink = page.getByTestId('l-to-non-nested-bazid-edit')
+
+  await expect(nonNestedPathHeading).toBeInViewport()
+  await expect(bazIdLink).toHaveAttribute('href', '/non-nested/baz/123')
+  await expect(bazIdEditLink).toHaveAttribute(
+    'href',
+    '/non-nested/baz/456/edit',
+  )
+
+  await bazIdLink.click()
+  await page.waitForURL('/non-nested/baz/123')
+  const bazHeading = page.getByTestId('non-nested-baz-heading')
+  const bazIdHeading = page.getByTestId('non-nested-bazid-heading')
+  const bazIdParam = page.getByTestId('non-nested-bazid-param')
+  await expect(nonNestedPathHeading).toBeInViewport()
+  await expect(bazHeading).toBeInViewport()
+  await expect(bazIdHeading).toBeInViewport()
+  await expect(bazIdParam).toContainText(JSON.stringify({ bazid: '123' }))
+
+  await bazIdEditLink.click()
+  await page.waitForURL('/non-nested/baz/456/edit')
+  const bazIdEditHeading = page.getByTestId('non-nested-bazid-edit-heading')
+  const bazIdEditParam = page.getByTestId('non-nested-bazid-edit-param')
+  await expect(nonNestedPathHeading).toBeInViewport()
+  await expect(bazHeading).toBeHidden()
+  await expect(bazIdHeading).toBeHidden()
+  await expect(bazIdEditHeading).toBeInViewport()
+  await expect(bazIdEditParam).toContainText(JSON.stringify({ bazid: '456' }))
+})
diff --git a/packages/router-core/src/path.ts b/packages/router-core/src/path.ts
index ad8c5d2d565..d010cbb1ef9 100644
--- a/packages/router-core/src/path.ts
+++ b/packages/router-core/src/path.ts
@@ -259,8 +259,11 @@ function baseParsePathname(pathname: string): ReadonlyArray<Segment> {
 
   segments.push(
     ...split.map((part): Segment => {
+      // strip tailing underscore for non-nested paths
+      const partToMatch = part.slice(-1) === '_' ? part.slice(0, -1) : part
+
       // Check for wildcard with curly braces: prefix{$}suffix
-      const wildcardBracesMatch = part.match(WILDCARD_W_CURLY_BRACES_RE)
+      const wildcardBracesMatch = partToMatch.match(WILDCARD_W_CURLY_BRACES_RE)
       if (wildcardBracesMatch) {
         const prefix = wildcardBracesMatch[1]
         const suffix = wildcardBracesMatch[2]
@@ -273,7 +276,7 @@ function baseParsePathname(pathname: string): ReadonlyArray<Segment> {
       }
 
       // Check for optional parameter format: prefix{-$paramName}suffix
-      const optionalParamBracesMatch = part.match(
+      const optionalParamBracesMatch = partToMatch.match(
         OPTIONAL_PARAM_W_CURLY_BRACES_RE,
       )
       if (optionalParamBracesMatch) {
@@ -289,7 +292,7 @@ function baseParsePathname(pathname: string): ReadonlyArray<Segment> {
       }
 
       // Check for the new parameter format: prefix{$paramName}suffix
-      const paramBracesMatch = part.match(PARAM_W_CURLY_BRACES_RE)
+      const paramBracesMatch = partToMatch.match(PARAM_W_CURLY_BRACES_RE)
       if (paramBracesMatch) {
         const prefix = paramBracesMatch[1]
         const paramName = paramBracesMatch[2]
@@ -303,8 +306,8 @@ function baseParsePathname(pathname: string): ReadonlyArray<Segment> {
       }
 
       // Check for bare parameter format: $paramName (without curly braces)
-      if (PARAM_RE.test(part)) {
-        const paramName = part.substring(1)
+      if (PARAM_RE.test(partToMatch)) {
+        const paramName = partToMatch.substring(1)
         return {
           type: SEGMENT_TYPE_PARAM,
           value: '$' + paramName,
@@ -314,7 +317,7 @@ function baseParsePathname(pathname: string): ReadonlyArray<Segment> {
       }
 
       // Check for bare wildcard: $ (without curly braces)
-      if (WILDCARD_RE.test(part)) {
+      if (WILDCARD_RE.test(partToMatch)) {
         return {
           type: SEGMENT_TYPE_WILDCARD,
           value: '$',
@@ -326,12 +329,12 @@ function baseParsePathname(pathname: string): ReadonlyArray<Segment> {
       // Handle regular pathname segment
       return {
         type: SEGMENT_TYPE_PATHNAME,
-        value: part.includes('%25')
-          ? part
+        value: partToMatch.includes('%25')
+          ? partToMatch
               .split('%25')
               .map((segment) => decodeURI(segment))
               .join('%25')
-          : decodeURI(part),
+          : decodeURI(partToMatch),
       }
     }),
   )
diff --git a/packages/router-core/tests/match-by-path.test.ts b/packages/router-core/tests/match-by-path.test.ts
index 51466ab0d5f..8c582cfedfc 100644
--- a/packages/router-core/tests/match-by-path.test.ts
+++ b/packages/router-core/tests/match-by-path.test.ts
@@ -196,3 +196,191 @@ describe('fuzzy path matching', () => {
     )
   })
 })
+
+describe('non-nested paths', () => {
+  describe('default path matching', () => {
+    it.each([
+      ['/', '/a_', '/a_', {}],
+      ['/', '/a_/b_', '/a_/b_', {}],
+      ['/', '/a_', '/a_/', {}],
+      ['/', '/a_/', '/a_/', {}],
+      ['/', '/a_/', '/a_', undefined],
+      ['/', '/b_', '/a_', undefined],
+    ])('static %s %s => %s', (base, from, to, result) => {
+      expect(
+        matchByPath(from, { to, caseSensitive: true, fuzzy: false }),
+      ).toEqual(result)
+    })
+
+    it.each([
+      ['/a/1', '/a_/$id_', { id: '1' }],
+      ['/a/1/b', '/a_/$id_/b_', { id: '1' }],
+      ['/a/1/b/2', '/a_/$id_/b_/$other_', { id: '1', other: '2' }],
+      ['/a/1/b/2', '/a_/$id_/b_/$id_', { id: '2' }],
+    ])('params %s => %s', (from, to, result) => {
+      expect(
+        matchByPath(from, { to, caseSensitive: true, fuzzy: false }),
+      ).toEqual(result)
+    })
+
+    it('params support more than alphanumeric characters', () => {
+      // in the value: basically everything except / and %
+      expect(
+        matchByPath(
+          '/a/@&é"\'(§è!çà)-_°^¨$*€£`ù=+:;.,?~<>|î©#0123456789\\😀}{',
+          { to: '/a_/$id_' },
+        ),
+      ).toEqual({
+        id: '@&é"\'(§è!çà)-_°^¨$*€£`ù=+:;.,?~<>|î©#0123456789\\😀}{',
+      })
+      // in the key: basically everything except / and % and $
+      expect(
+        matchByPath('/a/1', {
+          to: '/a_/$@&é"\'(§è!çà)-_°^¨*€£`ù=+:;.,?~<>|î©#0123456789\\😀}{_',
+        }),
+      ).toEqual({
+        '@&é"\'(§è!çà)-_°^¨*€£`ù=+:;.,?~<>|î©#0123456789\\😀}{': '1',
+      })
+    })
+
+    it.each([
+      ['/a/1', '/a_/{-$id}_', { id: '1' }],
+      ['/a', '/a_/{-$id}_', {}],
+      ['/a/1/b', '/a_/{-$id}_/b_', { id: '1' }],
+      ['/a/b', '/a_/{-$id}_/b_', {}],
+      ['/a/1/b/2', '/a_/{-$id}_/b_/{-$other}_', { id: '1', other: '2' }],
+      ['/a/b/2', '/a_/{-$id}_/b_/{-$other}_', { other: '2' }],
+      ['/a/1/b', '/a_/{-$id}_/b_/{-$other}_', { id: '1' }],
+      ['/a/b', '/a_/{-$id}_/b_/{-$other}_', {}],
+      ['/a/1/b/2', '/a_/{-$id}_/b_/{-$id}_', { id: '2' }],
+    ])('optional %s => %s', (from, to, result) => {
+      expect(
+        matchByPath(from, { to, caseSensitive: true, fuzzy: false }),
+      ).toEqual(result)
+    })
+
+    it.each([
+      ['/a/b/c', '/a_/$_', { _splat: 'b/c', '*': 'b/c' }],
+      ['/a/', '/a_/$_', { _splat: '/', '*': '/' }],
+      ['/a', '/a_/$_', { _splat: '', '*': '' }],
+      ['/a/b/c', '/a_/$_/foo_', { _splat: 'b/c', '*': 'b/c' }],
+    ])('wildcard %s => %s', (from, to, result) => {
+      expect(
+        matchByPath(from, { to, caseSensitive: true, fuzzy: false }),
+      ).toEqual(result)
+    })
+  })
+
+  describe('case insensitive path matching', () => {
+    it.each([
+      ['/', '/a', '/A_', {}],
+      ['/', '/a/b', '/A_/B_', {}],
+      ['/', '/a', '/A_/', {}],
+      ['/', '/a/', '/A_/', {}],
+      ['/', '/a/', '/A_', undefined],
+      ['/', '/b', '/A_', undefined],
+    ])('static %s %s => %s', (base, from, to, result) => {
+      expect(
+        matchByPath(from, { to, caseSensitive: false, fuzzy: false }),
+      ).toEqual(result)
+    })
+
+    it.each([
+      ['/a/1', '/A_/$id_', { id: '1' }],
+      ['/a/1/b', '/A_/$id_/B_', { id: '1' }],
+      ['/a/1/b/2', '/A_/$id_/B_/$other_', { id: '1', other: '2' }],
+      ['/a/1/b/2', '/A_/$id_/B_/$id_', { id: '2' }],
+    ])('params %s => %s', (from, to, result) => {
+      expect(
+        matchByPath(from, { to, caseSensitive: false, fuzzy: false }),
+      ).toEqual(result)
+    })
+
+    it.each([
+      ['/a/1', '/A_/{-$id}_', { id: '1' }],
+      ['/a', '/A_/{-$id}_', {}],
+      ['/a/1/b', '/A_/{-$id}_/B_', { id: '1' }],
+      ['/a/1/b/2', '/A_/{-$id}_/B_/{-$other}_', { id: '1', other: '2' }],
+      ['/a/1/b', '/A_/{-$id}_/B_/{-$other}_', { id: '1' }],
+      ['/a/1/b/2', '/A_/{-$id}_/B/{-$id}_', { id: '2' }],
+    ])('optional %s => %s', (from, to, result) => {
+      expect(
+        matchByPath(from, { to, caseSensitive: false, fuzzy: false }),
+      ).toEqual(result)
+    })
+
+    it.each([
+      ['/a/b/c', '/A_/$_', { _splat: 'b/c', '*': 'b/c' }],
+      ['/a/', '/A_/$_', { _splat: '/', '*': '/' }],
+      ['/a', '/A_/$_', { _splat: '', '*': '' }],
+      ['/a/b/c', '/A_/$_/foo_', { _splat: 'b/c', '*': 'b/c' }],
+    ])('wildcard %s => %s', (from, to, result) => {
+      expect(
+        matchByPath(from, { to, caseSensitive: false, fuzzy: false }),
+      ).toEqual(result)
+    })
+  })
+
+  describe('fuzzy path matching', () => {
+    it.each([
+      ['/', '/a', '/a_', {}],
+      ['/', '/a', '/a_/', {}],
+      ['/', '/a/', '/a_/', {}],
+      ['/', '/a/', '/a_', { '**': '/' }],
+      ['/', '/a/b', '/a_/b_', {}],
+      ['/', '/a/b', '/a_', { '**': 'b' }],
+      ['/', '/a/b/', '/a_', { '**': 'b/' }],
+      ['/', '/a/b/c', '/a_', { '**': 'b/c' }],
+      ['/', '/a', '/a_/b_', undefined],
+      ['/', '/b', '/a_', undefined],
+      ['/', '/a', '/b_', undefined],
+    ])('static %s %s => %s', (base, from, to, result) => {
+      expect(
+        matchByPath(from, { to, fuzzy: true, caseSensitive: true }),
+      ).toEqual(result)
+    })
+
+    it.each([
+      ['/a/1', '/a_/$id_', { id: '1' }],
+      ['/a/1/b', '/a_/$id_', { id: '1', '**': 'b' }],
+      ['/a/1/', '/a_/$id_/', { id: '1' }],
+      ['/a/1/b/2', '/a_/$id_/b_/$other_', { id: '1', other: '2' }],
+      ['/a/1/b/2/c', '/a_/$id_/b_/$other_', { id: '1', other: '2', '**': 'c' }],
+    ])('params %s => %s', (from, to, result) => {
+      expect(
+        matchByPath(from, { to, fuzzy: true, caseSensitive: true }),
+      ).toEqual(result)
+    })
+
+    it.each([
+      ['/a/1', '/a_/{-$id}_', { id: '1' }],
+      ['/a', '/a_/{-$id}_', {}],
+      ['/a/1/b', '/a_/{-$id}_', { '**': 'b', id: '1' }],
+      ['/a/1/b', '/a_/{-$id}_/b_', { id: '1' }],
+      ['/a/b', '/a_/{-$id}_/b_', {}],
+      ['/a/b/c', '/a_/{-$id}_/b_', { '**': 'c' }],
+      ['/a/b', '/a/_{-$id}_/b_/{-$other}_', {}],
+      ['/a/b/2/d', '/a_/{-$id}_/b_/{-$other}_', { other: '2', '**': 'd' }],
+      [
+        '/a/1/b/2/c',
+        '/a_/{-$id}_/b_/{-$other}_',
+        { id: '1', other: '2', '**': 'c' },
+      ],
+    ])('optional %s => %s', (from, to, result) => {
+      expect(
+        matchByPath(from, { to, fuzzy: true, caseSensitive: true }),
+      ).toEqual(result)
+    })
+
+    it.each([
+      ['/a/b/c', '/a_/$_', { _splat: 'b/c', '*': 'b/c' }],
+      ['/a/', '/a_/$_', { _splat: '/', '*': '/' }],
+      ['/a', '/a_/$_', { _splat: '', '*': '' }],
+      ['/a/b/c/d', '/a_/$_/foo_', { _splat: 'b/c/d', '*': 'b/c/d' }],
+    ])('wildcard %s => %s', (from, to, result) => {
+      expect(
+        matchByPath(from, { to, fuzzy: true, caseSensitive: true }),
+      ).toEqual(result)
+    })
+  })
+})
diff --git a/packages/router-core/tests/path.test.ts b/packages/router-core/tests/path.test.ts
index 96458b4259b..0f4b362d77f 100644
--- a/packages/router-core/tests/path.test.ts
+++ b/packages/router-core/tests/path.test.ts
@@ -112,6 +112,7 @@ describe('resolvePath', () => {
       expect(resolvePath({ base: a + '/', to: b + '/' })).toEqual(eq)
     })
   })
+
   describe('trailingSlash', () => {
     describe(`'always'`, () => {
       it('keeps trailing slash', () => {
@@ -973,3 +974,920 @@ describe('parsePathname', () => {
     })
   })
 })
+
+describe('non-nested paths', async () => {
+  describe('resolvePath', () => {
+    describe.each([
+      ['/', '/a_', '/a'],
+      ['/', 'a_/', '/a'],
+      ['/', '/a_/b_', '/a/b'],
+      ['/a', 'b_', '/a/b'],
+      ['/', 'a_/b_', '/a/b'],
+      ['/', './a_/b_', '/a/b'],
+      ['/a/b/c', 'd_', '/a/b/c/d'],
+      ['/a/b/c', './d_', '/a/b/c/d'],
+      ['/a/b/c', './../d_', '/a/b/d'],
+      ['/a/b/c/d', './../d_', '/a/b/c/d'],
+      ['/a/b/c', '../../d_', '/a/d'],
+      ['/a/b/c', '../d_', '/a/b/d'],
+    ])('resolves correctly', (a, b, eq) => {
+      it(`${a} to ${b} === ${eq}`, () => {
+        expect(resolvePath({ base: a, to: b })).toEqual(eq)
+      })
+      it(`${a}/ to ${b} === ${eq} (trailing slash)`, () => {
+        expect(resolvePath({ base: a + '/', to: b })).toEqual(eq)
+      })
+      it(`${a}/ to ${b}/ === ${eq} (trailing slash + trailing slash)`, () => {
+        expect(resolvePath({ base: a + '/', to: b + '/' })).toEqual(eq)
+      })
+    })
+
+    describe('trailingSlash', () => {
+      describe(`'always'`, () => {
+        it('keeps trailing slash', () => {
+          expect(
+            resolvePath({
+              base: '/a/b/c',
+              to: 'd_/',
+              trailingSlash: 'always',
+            }),
+          ).toBe('/a/b/c/d/')
+        })
+        it('adds trailing slash', () => {
+          expect(
+            resolvePath({
+              base: '/a/b/c',
+              to: 'd_',
+              trailingSlash: 'always',
+            }),
+          ).toBe('/a/b/c/d/')
+        })
+      })
+
+      describe(`'never'`, () => {
+        it('removes trailing slash', () => {
+          expect(
+            resolvePath({
+              base: '/a/b/c',
+              to: 'd_/',
+              trailingSlash: 'never',
+            }),
+          ).toBe('/a/b/c/d')
+        })
+        it('does not add trailing slash', () => {
+          expect(
+            resolvePath({
+              base: '/a/b/c',
+              to: 'd_',
+              trailingSlash: 'never',
+            }),
+          ).toBe('/a/b/c/d')
+        })
+      })
+
+      describe(`'preserve'`, () => {
+        it('keeps trailing slash', () => {
+          expect(
+            resolvePath({
+              base: '/a/b/c',
+              to: 'd_/',
+              trailingSlash: 'preserve',
+            }),
+          ).toBe('/a/b/c/d/')
+        })
+        it('does not add trailing slash', () => {
+          expect(
+            resolvePath({
+              base: '/a/b/c',
+              to: 'd_',
+              trailingSlash: 'preserve',
+            }),
+          ).toBe('/a/b/c/d')
+        })
+      })
+    })
+
+    describe.each([{ base: '/' }, { base: '/nested' }])(
+      'param routes w/ base=$base',
+      ({ base }) => {
+        describe('wildcard (prefix + suffix)', () => {
+          it.each([
+            { name: 'regular top-level', to: '/$_', expected: '/$' },
+            {
+              name: 'regular nested',
+              to: '/params/wildcard_/$_',
+              expected: '/params/wildcard/$',
+            },
+            {
+              name: 'with top-level prefix',
+              to: '/prefix{$}_',
+              expected: '/prefix{$}',
+            },
+            {
+              name: 'with nested prefix',
+              to: '/params_/wildcard/prefix{$}_',
+              expected: '/params/wildcard/prefix{$}',
+            },
+            {
+              name: 'with top-level suffix',
+              to: '/{$}suffix_',
+              expected: '/{$}suffix',
+            },
+            {
+              name: 'with nested suffix',
+              to: '/params_/wildcard_/{$}suffix_',
+              expected: '/params/wildcard/{$}suffix',
+            },
+            {
+              name: 'with top-level prefix + suffix',
+              to: '/prefix{$}suffix_',
+              expected: '/prefix{$}suffix',
+            },
+            {
+              name: 'with nested prefix + suffix',
+              to: '/params/wildcard/prefix{$}suffix_',
+              expected: '/params/wildcard/prefix{$}suffix',
+            },
+          ])('$name', ({ to, expected }) => {
+            const candidate = base + trimPathLeft(to)
+            const result = base + trimPathLeft(expected)
+            expect(
+              resolvePath({
+                base,
+                to: candidate,
+                trailingSlash: 'never',
+              }),
+            ).toEqual(result)
+          })
+        })
+
+        describe('named (prefix + suffix)', () => {
+          it.each([
+            { name: 'regular top-level', to: '/$foo_', expected: '/$foo' },
+            {
+              name: 'regular nested',
+              to: '/params/named_/$foo_',
+              expected: '/params/named/$foo',
+            },
+            {
+              name: 'with top-level prefix',
+              to: '/prefix{$foo}_',
+              expected: '/prefix{$foo}',
+            },
+            {
+              name: 'with nested prefix',
+              to: '/params_/named/prefix{$foo}_',
+              expected: '/params/named/prefix{$foo}',
+            },
+            {
+              name: 'with top-level suffix',
+              to: '/{$foo}suffix_',
+              expected: '/{$foo}suffix',
+            },
+            {
+              name: 'with nested suffix',
+              to: '/params_/named_/{$foo}suffix_',
+              expected: '/params/named/{$foo}suffix',
+            },
+            {
+              name: 'with top-level prefix + suffix',
+              to: '/prefix{$foo}suffix_',
+              expected: '/prefix{$foo}suffix',
+            },
+            {
+              name: 'with nested prefix + suffix',
+              to: '/params_/named_/prefix{$foo}suffix_',
+              expected: '/params/named/prefix{$foo}suffix',
+            },
+          ])('$name', ({ to, expected }) => {
+            const candidate = base + trimPathLeft(to)
+            const result = base + trimPathLeft(expected)
+            expect(
+              resolvePath({
+                base,
+                to: candidate,
+                trailingSlash: 'never',
+              }),
+            ).toEqual(result)
+          })
+        })
+      },
+    )
+  })
+
+  describe('interpolatePath', () => {
+    describe('regular usage', () => {
+      it.each([
+        {
+          name: 'should interpolate the path',
+          path: '/users_/$id_',
+          params: { id: '123' },
+          result: '/users/123',
+        },
+        {
+          name: 'should interpolate the path with multiple params',
+          path: '/users/$id_/$name_',
+          params: { id: '123', name: 'tanner' },
+          result: '/users/123/tanner',
+        },
+        {
+          name: 'should interpolate the path with extra params',
+          path: '/users/$id_',
+          params: { id: '123', name: 'tanner' },
+          result: '/users/123',
+        },
+        {
+          name: 'should interpolate the path with missing params',
+          path: '/users/$id/$name_',
+          params: { id: '123' },
+          result: '/users/123/undefined',
+        },
+        {
+          name: 'should interpolate the path with missing params and extra params',
+          path: '/users/$id_',
+          params: { name: 'john' },
+          result: '/users/undefined',
+        },
+        {
+          name: 'should interpolate the path with the param being a number',
+          path: '/users/$id_',
+          params: { id: 123 },
+          result: '/users/123',
+        },
+        {
+          name: 'should interpolate the path with the param being a falsey number',
+          path: '/users/$id_',
+          params: { id: 0 },
+          result: '/users/0',
+        },
+        {
+          name: 'should interpolate the path with URI component encoding',
+          path: '/users/$id_',
+          params: { id: '?#@john+smith' },
+          result: '/users/%3F%23%40john%2Bsmith',
+        },
+        {
+          name: 'should interpolate the path without URI encoding characters in decodeCharMap',
+          path: '/users/$id_',
+          params: { id: '?#@john+smith' },
+          result: '/users/%3F%23@john+smith',
+          decodeCharMap: new Map(
+            ['@', '+'].map((char) => [encodeURIComponent(char), char]),
+          ),
+        },
+        {
+          name: 'should interpolate the path with the splat param at the end',
+          path: '/users/$_',
+          params: { _splat: '123' },
+          result: '/users/123',
+        },
+        {
+          name: 'should interpolate the path with a single named path param and the splat param at the end',
+          path: '/users/$username/$_',
+          params: { username: 'seancassiere', _splat: '123' },
+          result: '/users/seancassiere/123',
+        },
+        {
+          name: 'should interpolate the path with 2 named path params with the splat param at the end',
+          path: '/users/$username/$id_/$_',
+          params: { username: 'seancassiere', id: '123', _splat: '456' },
+          result: '/users/seancassiere/123/456',
+        },
+        {
+          name: 'should interpolate the path with multiple named path params with the splat param at the end',
+          path: '/$username/settings_/$repo_/$id_/$_',
+          params: {
+            username: 'sean-cassiere',
+            repo: 'my-repo',
+            id: '123',
+            _splat: '456',
+          },
+          result: '/sean-cassiere/settings/my-repo/123/456',
+        },
+        {
+          name: 'should interpolate the path with the splat param containing slashes',
+          path: '/users_/$',
+          params: { _splat: 'sean/cassiere' },
+          result: '/users/sean/cassiere',
+        },
+      ])('$name', ({ path, params, decodeCharMap, result }) => {
+        expect(
+          interpolatePath({
+            path,
+            params,
+            decodeCharMap,
+          }).interpolatedPath,
+        ).toBe(result)
+      })
+    })
+
+    describe('wildcard (prefix + suffix)', () => {
+      it.each([
+        {
+          name: 'regular',
+          to: '/$_',
+          params: { _splat: 'bar/foo/me' },
+          result: '/bar/foo/me',
+        },
+        {
+          name: 'regular curly braces',
+          to: '/{$}_',
+          params: { _splat: 'bar/foo/me' },
+          result: '/bar/foo/me',
+        },
+        {
+          name: 'with prefix',
+          to: '/prefix{$}_',
+          params: { _splat: 'bar' },
+          result: '/prefixbar',
+        },
+        {
+          name: 'with suffix',
+          to: '/{$}-suffix_',
+          params: { _splat: 'bar' },
+          result: '/bar-suffix',
+        },
+        {
+          name: 'with prefix + suffix',
+          to: '/prefix{$}-suffix_',
+          params: { _splat: 'bar' },
+          result: '/prefixbar-suffix',
+        },
+      ])('$name', ({ to, params, result }) => {
+        expect(
+          interpolatePath({
+            path: to,
+            params,
+          }).interpolatedPath,
+        ).toBe(result)
+      })
+    })
+
+    describe('named params (prefix + suffix)', () => {
+      it.each([
+        {
+          name: 'regular',
+          to: '/$foo_',
+          params: { foo: 'bar' },
+          result: '/bar',
+        },
+        {
+          name: 'regular curly braces',
+          to: '/{$foo}_',
+          params: { foo: 'bar' },
+          result: '/bar',
+        },
+        {
+          name: 'with prefix',
+          to: '/prefix{$bar}_',
+          params: { bar: 'baz' },
+          result: '/prefixbaz',
+        },
+        {
+          name: 'with suffix',
+          to: '/{$foo}.suffix_',
+          params: { foo: 'bar' },
+          result: '/bar.suffix',
+        },
+        {
+          name: 'with prefix and suffix',
+          to: '/prefix{$param}.suffix_',
+          params: { param: 'foobar' },
+          result: '/prefixfoobar.suffix',
+        },
+      ])('$name', ({ to, params, result }) => {
+        expect(
+          interpolatePath({
+            path: to,
+            params,
+          }).interpolatedPath,
+        ).toBe(result)
+      })
+    })
+
+    describe('should handle missing _splat parameter for', () => {
+      it.each([
+        {
+          name: 'basic splat route',
+          path: '/hello/$_',
+          params: {},
+          expectedResult: '/hello',
+        },
+        {
+          name: 'splat route with prefix',
+          path: '/hello_/prefix{$}_',
+          params: {},
+          expectedResult: '/hello/prefix',
+        },
+        {
+          name: 'splat route with suffix',
+          path: '/hello/{$}suffix_',
+          params: {},
+          expectedResult: '/hello/suffix',
+        },
+        {
+          name: 'splat route with prefix and suffix',
+          path: '/hello/prefix{$}suffix_',
+          params: {},
+          expectedResult: '/hello/prefixsuffix',
+        },
+      ])('$name', ({ path, params, expectedResult }) => {
+        const result = interpolatePath({
+          path,
+          params,
+        })
+        expect(result.interpolatedPath).toBe(expectedResult)
+        expect(result.isMissingParams).toBe(true)
+      })
+    })
+  })
+
+  describe('matchPathname', () => {
+    describe('path param(s) matching', () => {
+      it.each([
+        {
+          name: 'should not match since `to` does not match the input',
+          input: '/',
+          matchingOptions: {
+            to: '/users_',
+          },
+          expectedMatchedParams: undefined,
+        },
+        {
+          name: 'should match since `to` matches the input',
+          input: '/users',
+          matchingOptions: {
+            to: '/users_',
+          },
+          expectedMatchedParams: {},
+        },
+        {
+          name: 'should match and return the named path params',
+          input: '/users/123',
+          matchingOptions: {
+            to: '/users/$id_',
+          },
+          expectedMatchedParams: { id: '123' },
+        },
+        {
+          name: 'should match and return the the splat param',
+          input: '/users/123',
+          matchingOptions: {
+            to: '/users/$_',
+          },
+          expectedMatchedParams: {
+            '*': '123',
+            _splat: '123',
+          },
+        },
+        {
+          name: 'should match and return the named path and splat params',
+          input: '/users/123/456',
+          matchingOptions: {
+            to: '/users_/$id_/$_',
+          },
+          expectedMatchedParams: {
+            id: '123',
+            '*': '456',
+            _splat: '456',
+          },
+        },
+        {
+          name: 'should match and return the multiple named path params and splat param',
+          input: '/sean-cassiere/settings/my-repo/123/456',
+          matchingOptions: {
+            to: '/$username_/settings_/$repo_/$id_/$_',
+          },
+          expectedMatchedParams: {
+            username: 'sean-cassiere',
+            repo: 'my-repo',
+            id: '123',
+            '*': '456',
+            _splat: '456',
+          },
+        },
+        {
+          name: 'should match and return the splat params when multiple subsequent segments are present',
+          input: '/docs/tanner/sean/manuel',
+          matchingOptions: {
+            to: '/docs/$_',
+          },
+          expectedMatchedParams: {
+            '*': 'tanner/sean/manuel',
+            _splat: 'tanner/sean/manuel',
+          },
+        },
+      ])('$name', ({ input, matchingOptions, expectedMatchedParams }) => {
+        expect(matchPathname(input, matchingOptions)).toStrictEqual(
+          expectedMatchedParams,
+        )
+      })
+    })
+
+    describe('wildcard (prefix + suffix)', () => {
+      it.each([
+        {
+          name: 'regular',
+          input: '/docs/foo/bar',
+          matchingOptions: {
+            to: '/docs/$_',
+          },
+          expectedMatchedParams: {
+            '*': 'foo/bar',
+            _splat: 'foo/bar',
+          },
+        },
+        {
+          name: 'regular curly braces',
+          input: '/docs/foo/bar',
+          matchingOptions: {
+            to: '/docs_/{$}_',
+          },
+          expectedMatchedParams: {
+            '*': 'foo/bar',
+            _splat: 'foo/bar',
+          },
+        },
+        {
+          name: 'with prefix',
+          input: '/docs/prefixbar/baz',
+          matchingOptions: {
+            to: '/docs_/prefix{$}_',
+          },
+          expectedMatchedParams: {
+            '*': 'bar/baz',
+            _splat: 'bar/baz',
+          },
+        },
+        {
+          name: 'with suffix',
+          input: '/docs/bar/baz.suffix',
+          matchingOptions: {
+            to: '/docs/{$}.suffix_',
+          },
+          expectedMatchedParams: {
+            '*': 'bar/baz',
+            _splat: 'bar/baz',
+          },
+        },
+        {
+          name: 'with prefix + suffix',
+          input: '/docs/prefixbar/baz-suffix',
+          matchingOptions: {
+            to: '/docs/prefix{$}-suffix_',
+          },
+          expectedMatchedParams: {
+            '*': 'bar/baz',
+            _splat: 'bar/baz',
+          },
+        },
+      ])('$name', ({ input, matchingOptions, expectedMatchedParams }) => {
+        expect(matchPathname(input, matchingOptions)).toStrictEqual(
+          expectedMatchedParams,
+        )
+      })
+    })
+
+    describe('named params (prefix + suffix)', () => {
+      it.each([
+        {
+          name: 'regular',
+          input: '/docs/foo',
+          matchingOptions: {
+            to: '/docs/$bar_',
+          },
+          expectedMatchedParams: {
+            bar: 'foo',
+          },
+        },
+        {
+          name: 'regular curly braces',
+          input: '/docs/foo',
+          matchingOptions: {
+            to: '/docs/{$bar}_',
+          },
+          expectedMatchedParams: {
+            bar: 'foo',
+          },
+        },
+        {
+          name: 'with prefix',
+          input: '/docs/prefixfoo',
+          matchingOptions: {
+            to: '/docs/prefix{$bar}_',
+          },
+          expectedMatchedParams: {
+            bar: 'foo',
+          },
+        },
+        {
+          name: 'with suffix',
+          input: '/docs/foo.suffix',
+          matchingOptions: {
+            to: '/docs/{$bar}.suffix_',
+          },
+          expectedMatchedParams: {
+            bar: 'foo',
+          },
+        },
+        {
+          name: 'with prefix + suffix',
+          input: '/docs/prefixfoobar-suffix',
+          matchingOptions: {
+            to: '/docs/prefix{$param}-suffix_',
+          },
+          expectedMatchedParams: {
+            param: 'foobar',
+          },
+        },
+      ])('$name', ({ input, matchingOptions, expectedMatchedParams }) => {
+        expect(matchPathname(input, matchingOptions)).toStrictEqual(
+          expectedMatchedParams,
+        )
+      })
+    })
+  })
+
+  describe('parsePathname', () => {
+    type ParsePathnameTestScheme = Array<{
+      name: string
+      to: string | undefined
+      expected: Array<PathSegment>
+    }>
+
+    describe('regular usage', () => {
+      it.each([
+        {
+          name: 'should handle pathname with a single segment',
+          to: '/foo_',
+          expected: [
+            { type: SEGMENT_TYPE_PATHNAME, value: '/' },
+            { type: SEGMENT_TYPE_PATHNAME, value: 'foo' },
+          ],
+        },
+        {
+          name: 'should handle pathname with multiple segments',
+          to: '/foo_/bar_/baz_',
+          expected: [
+            { type: SEGMENT_TYPE_PATHNAME, value: '/' },
+            { type: SEGMENT_TYPE_PATHNAME, value: 'foo' },
+            { type: SEGMENT_TYPE_PATHNAME, value: 'bar' },
+            { type: SEGMENT_TYPE_PATHNAME, value: 'baz' },
+          ],
+        },
+        {
+          name: 'should handle pathname with a trailing slash',
+          to: '/foo_/',
+          expected: [
+            { type: SEGMENT_TYPE_PATHNAME, value: '/' },
+            { type: SEGMENT_TYPE_PATHNAME, value: 'foo' },
+            { type: SEGMENT_TYPE_PATHNAME, value: '/' },
+          ],
+        },
+        {
+          name: 'should handle named params',
+          to: '/foo_/$bar_',
+          expected: [
+            { type: SEGMENT_TYPE_PATHNAME, value: '/' },
+            { type: SEGMENT_TYPE_PATHNAME, value: 'foo' },
+            { type: SEGMENT_TYPE_PARAM, value: '$bar' },
+          ],
+        },
+        {
+          name: 'should handle named params at the root',
+          to: '/$bar_',
+          expected: [
+            { type: SEGMENT_TYPE_PATHNAME, value: '/' },
+            { type: SEGMENT_TYPE_PARAM, value: '$bar' },
+          ],
+        },
+        {
+          name: 'should handle named params followed by a segment',
+          to: '/foo_/$bar_/baz_',
+          expected: [
+            { type: SEGMENT_TYPE_PATHNAME, value: '/' },
+            { type: SEGMENT_TYPE_PATHNAME, value: 'foo' },
+            { type: SEGMENT_TYPE_PARAM, value: '$bar' },
+            { type: SEGMENT_TYPE_PATHNAME, value: 'baz' },
+          ],
+        },
+        {
+          name: 'should handle multiple named params',
+          to: '/foo_/$bar_/$baz_/qux_/$quux_',
+          expected: [
+            { type: SEGMENT_TYPE_PATHNAME, value: '/' },
+            { type: SEGMENT_TYPE_PATHNAME, value: 'foo' },
+            { type: SEGMENT_TYPE_PARAM, value: '$bar' },
+            { type: SEGMENT_TYPE_PARAM, value: '$baz' },
+            { type: SEGMENT_TYPE_PATHNAME, value: 'qux' },
+            { type: SEGMENT_TYPE_PARAM, value: '$quux' },
+          ],
+        },
+        {
+          name: 'should handle splat params',
+          to: '/foo_/$_',
+          expected: [
+            { type: SEGMENT_TYPE_PATHNAME, value: '/' },
+            { type: SEGMENT_TYPE_PATHNAME, value: 'foo' },
+            { type: SEGMENT_TYPE_WILDCARD, value: '$' },
+          ],
+        },
+        {
+          name: 'should handle splat params at the root',
+          to: '/$_',
+          expected: [
+            { type: SEGMENT_TYPE_PATHNAME, value: '/' },
+            { type: SEGMENT_TYPE_WILDCARD, value: '$' },
+          ],
+        },
+      ] satisfies ParsePathnameTestScheme)('$name', ({ to, expected }) => {
+        const result = parsePathname(to)
+        expect(result).toEqual(expected)
+      })
+    })
+
+    describe('wildcard (prefix + suffix)', () => {
+      it.each([
+        {
+          name: 'regular',
+          to: '/$_',
+          expected: [
+            { type: SEGMENT_TYPE_PATHNAME, value: '/' },
+            { type: SEGMENT_TYPE_WILDCARD, value: '$' },
+          ],
+        },
+        {
+          name: 'regular curly braces',
+          to: '/{$}_',
+          expected: [
+            { type: SEGMENT_TYPE_PATHNAME, value: '/' },
+            { type: SEGMENT_TYPE_WILDCARD, value: '$' },
+          ],
+        },
+        {
+          name: 'with prefix (regular text)',
+          to: '/foo{$}_',
+          expected: [
+            { type: SEGMENT_TYPE_PATHNAME, value: '/' },
+            {
+              type: SEGMENT_TYPE_WILDCARD,
+              value: '$',
+              prefixSegment: 'foo',
+            },
+          ],
+        },
+        {
+          name: 'with prefix + followed by special character',
+          to: '/foo.{$}_',
+          expected: [
+            { type: SEGMENT_TYPE_PATHNAME, value: '/' },
+            {
+              type: SEGMENT_TYPE_WILDCARD,
+              value: '$',
+              prefixSegment: 'foo.',
+            },
+          ],
+        },
+        {
+          name: 'with suffix',
+          to: '/{$}-foo_',
+          expected: [
+            { type: SEGMENT_TYPE_PATHNAME, value: '/' },
+            {
+              type: SEGMENT_TYPE_WILDCARD,
+              value: '$',
+              suffixSegment: '-foo',
+            },
+          ],
+        },
+        {
+          name: 'with prefix + suffix',
+          to: '/foo{$}-bar_',
+          expected: [
+            { type: SEGMENT_TYPE_PATHNAME, value: '/' },
+            {
+              type: SEGMENT_TYPE_WILDCARD,
+              value: '$',
+              prefixSegment: 'foo',
+              suffixSegment: '-bar',
+            },
+          ],
+        },
+        {
+          name: 'with prefix + followed by special character and a segment',
+          to: '/foo.{$}_/bar_',
+          expected: [
+            { type: SEGMENT_TYPE_PATHNAME, value: '/' },
+            {
+              type: SEGMENT_TYPE_WILDCARD,
+              value: '$',
+              prefixSegment: 'foo.',
+            },
+            { type: SEGMENT_TYPE_PATHNAME, value: 'bar' },
+          ],
+        },
+      ] satisfies ParsePathnameTestScheme)('$name', ({ to, expected }) => {
+        const result = parsePathname(to)
+        expect(result).toEqual(expected)
+      })
+    })
+
+    describe('named params (prefix + suffix)', () => {
+      it.each([
+        {
+          name: 'regular',
+          to: '/$bar_',
+          expected: [
+            { type: SEGMENT_TYPE_PATHNAME, value: '/' },
+            { type: SEGMENT_TYPE_PARAM, value: '$bar' },
+          ],
+        },
+        {
+          name: 'regular curly braces',
+          to: '/{$bar}_',
+          expected: [
+            { type: SEGMENT_TYPE_PATHNAME, value: '/' },
+            { type: SEGMENT_TYPE_PARAM, value: '$bar' },
+          ],
+        },
+        {
+          name: 'with prefix (regular text)',
+          to: '/foo{$bar}_',
+          expected: [
+            { type: SEGMENT_TYPE_PATHNAME, value: '/' },
+            {
+              type: SEGMENT_TYPE_PARAM,
+              value: '$bar',
+              prefixSegment: 'foo',
+            },
+          ],
+        },
+        {
+          name: 'with prefix + followed by special character',
+          to: '/foo.{$bar}_',
+          expected: [
+            { type: SEGMENT_TYPE_PATHNAME, value: '/' },
+            {
+              type: SEGMENT_TYPE_PARAM,
+              value: '$bar',
+              prefixSegment: 'foo.',
+            },
+          ],
+        },
+        {
+          name: 'with suffix',
+          to: '/{$bar}.foo_',
+          expected: [
+            { type: SEGMENT_TYPE_PATHNAME, value: '/' },
+            {
+              type: SEGMENT_TYPE_PARAM,
+              value: '$bar',
+              suffixSegment: '.foo',
+            },
+          ],
+        },
+        {
+          name: 'with suffix + started by special character',
+          to: '/{$bar}.foo_',
+          expected: [
+            { type: SEGMENT_TYPE_PATHNAME, value: '/' },
+            {
+              type: SEGMENT_TYPE_PARAM,
+              value: '$bar',
+              suffixSegment: '.foo',
+            },
+          ],
+        },
+        {
+          name: 'with suffix + started by special character and followed by segment',
+          to: '/{$bar}.foo_/baz_',
+          expected: [
+            { type: SEGMENT_TYPE_PATHNAME, value: '/' },
+            {
+              type: SEGMENT_TYPE_PARAM,
+              value: '$bar',
+              suffixSegment: '.foo',
+            },
+            { type: SEGMENT_TYPE_PATHNAME, value: 'baz' },
+          ],
+        },
+        {
+          name: 'with suffix + prefix',
+          to: '/foo{$bar}.baz_',
+          expected: [
+            { type: SEGMENT_TYPE_PATHNAME, value: '/' },
+            {
+              type: SEGMENT_TYPE_PARAM,
+              value: '$bar',
+              prefixSegment: 'foo',
+              suffixSegment: '.baz',
+            },
+          ],
+        },
+      ] satisfies ParsePathnameTestScheme)('$name', ({ to, expected }) => {
+        const result = parsePathname(to)
+        expect(result).toEqual(expected)
+      })
+    })
+  })
+})