diff --git a/frontend/server/api/collection/[slug]/project-repos.ts b/frontend/server/api/collection/[slug]/project-repos.ts
index db952b84a..1d4bb1820 100644
--- a/frontend/server/api/collection/[slug]/project-repos.ts
+++ b/frontend/server/api/collection/[slug]/project-repos.ts
@@ -3,7 +3,6 @@
 import type { Pool } from 'pg';
 
 import { postToTinybird } from '~~/server/data/tinybird/tinybird';
-import { legacyScoreFields } from '~~/server/helpers/health-score.helpers';
 import { CommunityCollectionRepository } from '~~/server/repo/communityCollection.repo';
 import { getOptionalUser } from '~~/server/utils/jwt';
 import { paginationTotal, paginationHasMore } from '~~/server/utils/pagination';
@@ -121,9 +120,7 @@ export default defineEventHandler(async (event): Promise<Pagination<unknown> | E
     );
 
     const data = response.data.map((item) => ({
-      ...Object.fromEntries(
-        Object.entries(item).filter(([key]) => !legacyScoreFields.includes(key)),
-      ),
+      ...item,
       healthScore: item.healthScoreV2 ?? null,
       isLF: !!item.isLF,
       achievements:
diff --git a/frontend/server/api/collection/[slug]/project-routes.test.ts b/frontend/server/api/collection/[slug]/project-routes.test.ts
index 810e535fb..5972d8ad1 100644
--- a/frontend/server/api/collection/[slug]/project-routes.test.ts
+++ b/frontend/server/api/collection/[slug]/project-routes.test.ts
@@ -43,11 +43,6 @@ beforeEach(() => {
         type: 'project',
         slug: 'k8s',
         isLF: 1,
-        healthScore: 86,
-        contributorHealthScore: 90,
-        popularityHealthScore: 95,
-        developmentHealthScore: 80,
-        securityHealthScore: 85,
         healthScoreV2: 71,
         achievements: [],
       },
@@ -72,17 +67,6 @@ describe.each(['projects', 'project-repos'])('GET /api/collection/[slug]/%s', (r
     expect(res.data[1]).toMatchObject({ type: 'repo', healthScore: null });
   });
 
-  it.each([
-    'contributorHealthScore',
-    'popularityHealthScore',
-    'developmentHealthScore',
-    'securityHealthScore',
-  ])('omits the v1 %s', async (field) => {
-    const res = await handlers[route](event);
-
-    expect(res.data[0]).not.toHaveProperty(field);
-  });
-
   it.each([
     ['healthScore_desc', 'healthScoreV2', 'desc'],
     ['healthScore_asc', 'healthScoreV2', 'asc'],
diff --git a/frontend/server/api/collection/[slug]/projects.ts b/frontend/server/api/collection/[slug]/projects.ts
index 347c08965..f9c401166 100644
--- a/frontend/server/api/collection/[slug]/projects.ts
+++ b/frontend/server/api/collection/[slug]/projects.ts
@@ -3,7 +3,6 @@
 import type { Pool } from 'pg';
 
 import { postToTinybird } from '~~/server/data/tinybird/tinybird';
-import { legacyScoreFields } from '~~/server/helpers/health-score.helpers';
 import { CommunityCollectionRepository } from '~~/server/repo/communityCollection.repo';
 import { getOptionalUser } from '~~/server/utils/jwt';
 import { paginationTotal, paginationHasMore } from '~~/server/utils/pagination';
@@ -92,9 +91,7 @@ export default defineEventHandler(async (event): Promise<Pagination<unknown> | E
     );
 
     const data = response.data.map((project) => ({
-      ...Object.fromEntries(
-        Object.entries(project).filter(([key]) => !legacyScoreFields.includes(key)),
-      ),
+      ...project,
       healthScore: project.healthScoreV2 ?? null,
       isLF: !!project.isLF,
       achievements:
diff --git a/frontend/server/api/ossindex/categories.ts b/frontend/server/api/ossindex/categories.ts
index 931dccc0c..5c9a0e1c0 100644
--- a/frontend/server/api/ossindex/categories.ts
+++ b/frontend/server/api/ossindex/categories.ts
@@ -55,7 +55,6 @@ export default defineEventHandler(async (event): Promise<OSSIndexCategoryGroupDe
       }),
       topProjects: item.topProjects.map((project) => {
         const [id, count, name, logo, softwareValue, avgScore] = project;
-        // Read the tail by distance from the end so it works with or without the upstream v1 health slot
         const [description, healthScoreV2, healthLabel, , healthMaxScore] = project.slice(-5);
         return {
           id: id as string,
diff --git a/frontend/server/api/ossindex/collections.ts b/frontend/server/api/ossindex/collections.ts
index 6a21bad2c..e2885e80e 100644
--- a/frontend/server/api/ossindex/collections.ts
+++ b/frontend/server/api/ossindex/collections.ts
@@ -51,7 +51,6 @@ export default defineEventHandler(async (event): Promise<OSSIndexCategoryDetails
       ...item,
       topProjects: item.topProjects.map((project) => {
         const [id, count, name, logo, softwareValue, avgScore] = project;
-        // Read the tail by distance from the end so it works with or without the upstream v1 health slot
         const [description, slug, status, healthScoreV2, healthLabel, , healthMaxScore] =
           project.slice(-7);
         return {
diff --git a/frontend/server/api/ossindex/groups.ts b/frontend/server/api/ossindex/groups.ts
index d759a6fc7..41adbffa7 100644
--- a/frontend/server/api/ossindex/groups.ts
+++ b/frontend/server/api/ossindex/groups.ts
@@ -43,7 +43,6 @@ export default defineEventHandler(async (event): Promise<OSSIndexCategoryGroup[]
       }),
       topProjects: item.topProjects.map((project) => {
         const [id, count, name, logo, softwareValue, avgScore] = project;
-        // Read the tail by distance from the end so it works with or without the upstream v1 health slot
         const [description, status, healthScoreV2, healthLabel, , healthMaxScore] =
           project.slice(-6);
         return {
diff --git a/frontend/server/api/ossindex/ossindex.test.ts b/frontend/server/api/ossindex/ossindex.test.ts
index 3b66ea64c..91d89fafd 100644
--- a/frontend/server/api/ossindex/ossindex.test.ts
+++ b/frontend/server/api/ossindex/ossindex.test.ts
@@ -47,35 +47,14 @@ const collectionRow = (topProjects: unknown[][]) => ({
   topProjects,
 });
 
-// The upstream tuple drops its v1 health slot at index 6 in a later release, so both shapes must map.
-const layouts = [
-  { name: 'with the v1 health slot', v1: [99] },
-  { name: 'without the v1 health slot', v1: [] },
-];
-
-describe.each(layouts)('OSS index tuple mapping $name', ({ v1 }) => {
+describe('OSS index tuple mapping', () => {
   it('maps the collections tuple', async () => {
     mockFetchFromTinybird.mockResolvedValue({
       data: [
         collectionRow([
-          ['p1', 10, 'Proj', 'logo', 5, 1, ...v1, 'desc', 'proj', 'active', 71, 'healthy', 71, 100],
-          [
-            'p2',
-            10,
-            'Partial',
-            'logo',
-            5,
-            1,
-            ...v1,
-            'desc',
-            'part',
-            'active',
-            64,
-            'excellent',
-            85,
-            75,
-          ],
-          ['p3', 10, 'Korg', 'logo', 5, 1, ...v1, 'desc', 'korg', 'active', null, null, null, null],
+          ['p1', 10, 'Proj', 'logo', 5, 1, 'desc', 'proj', 'active', 71, 'healthy', 71, 100],
+          ['p2', 10, 'Partial', 'logo', 5, 1, 'desc', 'part', 'active', 64, 'excellent', 85, 75],
+          ['p3', 10, 'Korg', 'logo', 5, 1, 'desc', 'korg', 'active', null, null, null, null],
         ]),
       ],
     });
@@ -115,7 +94,7 @@ describe.each(layouts)('OSS index tuple mapping $name', ({ v1 }) => {
           {
             ...collectionRow([]),
             topCollections: [],
-            topProjects: [['p1', 10, 'Proj', 'logo', 5, 1, ...v1, 'desc', 40, 'fair', 40, 100]],
+            topProjects: [['p1', 10, 'Proj', 'logo', 5, 1, 'desc', 40, 'fair', 40, 100]],
           },
         ],
       });
@@ -137,9 +116,7 @@ describe.each(layouts)('OSS index tuple mapping $name', ({ v1 }) => {
         {
           ...collectionRow([]),
           topCollections: [],
-          topProjects: [
-            ['p1', 10, 'Proj', 'logo', 5, 1, ...v1, 'desc', 'active', 22, 'critical', 22, 65],
-          ],
+          topProjects: [['p1', 10, 'Proj', 'logo', 5, 1, 'desc', 'active', 22, 'critical', 22, 65]],
         },
       ],
     });
diff --git a/frontend/server/api/project/[slug]/index.test.ts b/frontend/server/api/project/[slug]/index.test.ts
index 7881a188e..6f479d753 100644
--- a/frontend/server/api/project/[slug]/index.test.ts
+++ b/frontend/server/api/project/[slug]/index.test.ts
@@ -36,7 +36,6 @@ const mockProjectRow = (row: Record<string, unknown>) =>
 describe('GET /api/project/[slug]', () => {
   it('serves the raw v2 score as healthScore', async () => {
     mockProjectRow({
-      healthScore: 87.5,
       healthScoreV2: 52,
       healthMaxScore: 65,
       healthLabel: 'excellent',
diff --git a/frontend/server/api/project/[slug]/insights.get.test.ts b/frontend/server/api/project/[slug]/insights.get.test.ts
index 015caf911..789c3e338 100644
--- a/frontend/server/api/project/[slug]/insights.get.test.ts
+++ b/frontend/server/api/project/[slug]/insights.get.test.ts
@@ -26,17 +26,12 @@ beforeEach(() => {
 const event = { context: { params: { slug: 'k8s' } } } as unknown as H3Event;
 
 describe('GET /api/project/[slug]/insights', () => {
-  it('serves the v2 score as healthScore and omits the v1 sub-scores', async () => {
+  it('serves the v2 score as healthScore', async () => {
     mockFetchFromTinybird.mockResolvedValue({
       data: [
         {
           slug: 'k8s',
           isLF: 1,
-          healthScore: 87.5,
-          contributorHealthScore: 90,
-          popularityHealthScore: 95,
-          developmentHealthScore: 80,
-          securityHealthScore: 85,
           healthScoreV2: 71,
           healthLabel: 'healthy',
           achievements: [],
@@ -47,10 +42,6 @@ describe('GET /api/project/[slug]/insights', () => {
     const res = await handler(event);
 
     expect(res).toMatchObject({ slug: 'k8s', healthScore: 71, healthLabel: 'healthy', isLF: true });
-    expect(res).not.toHaveProperty('contributorHealthScore');
-    expect(res).not.toHaveProperty('popularityHealthScore');
-    expect(res).not.toHaveProperty('developmentHealthScore');
-    expect(res).not.toHaveProperty('securityHealthScore');
   });
 
   it('returns a null healthScore for a project without a v2 score', async () => {
diff --git a/frontend/server/api/project/[slug]/insights.get.ts b/frontend/server/api/project/[slug]/insights.get.ts
index f52c7e39a..426772afe 100644
--- a/frontend/server/api/project/[slug]/insights.get.ts
+++ b/frontend/server/api/project/[slug]/insights.get.ts
@@ -1,7 +1,6 @@
 // Copyright (c) 2025 The Linux Foundation and each contributor.
 // SPDX-License-Identifier: MIT
 import { fetchFromTinybird } from '~~/server/data/tinybird/tinybird';
-import { legacyScoreFields } from '~~/server/helpers/health-score.helpers';
 import { useApiTrackEvent } from '~~/server/utils/plausible';
 import type { ProjectInsightsTinybird } from '~~/types/project';
 
@@ -33,16 +32,13 @@ export default defineEventHandler(async (event) => {
       },
     });
 
-    const row = response.data?.[0];
-    if (!row) {
+    const project = response.data?.[0];
+    if (!project) {
       throw createError({
         statusCode: 404,
         statusMessage: 'Project not found',
       });
     }
-    const project = Object.fromEntries(
-      Object.entries(row).filter(([key]) => !legacyScoreFields.includes(key)),
-    ) as typeof row;
 
     return {
       ...project,
diff --git a/frontend/server/api/project/index.test.ts b/frontend/server/api/project/index.test.ts
index 0a297e583..e1b54a2dd 100644
--- a/frontend/server/api/project/index.test.ts
+++ b/frontend/server/api/project/index.test.ts
@@ -28,7 +28,7 @@ beforeEach(() => {
       data: params.count
         ? [{ 'count(id)': 2 }]
         : [
-            { slug: 'k8s', isLF: 1, healthScore: 87.5, healthScoreV2: 52, healthMaxScore: 65 },
+            { slug: 'k8s', isLF: 1, healthScoreV2: 52, healthMaxScore: 65 },
             { slug: 'korg', isLF: 0, healthScoreV2: null, healthMaxScore: null },
           ],
     }),
diff --git a/frontend/server/helpers/health-score.helpers.ts b/frontend/server/helpers/health-score.helpers.ts
index 7616389fe..269af7f2e 100644
--- a/frontend/server/helpers/health-score.helpers.ts
+++ b/frontend/server/helpers/health-score.helpers.ts
@@ -12,14 +12,6 @@ export interface HealthScoreFilters {
   endDate?: DateTime;
 }
 
-// Tinybird returns these v1 columns until crowd.dev drops them; API responses omit them.
-export const legacyScoreFields = [
-  'contributorHealthScore',
-  'popularityHealthScore',
-  'developmentHealthScore',
-  'securityHealthScore',
-];
-
 const healthScores: string[] = [
   'active_contributors',
   'contributor_dependency',