diff --git a/eng/pipelines/runtime.yml b/eng/pipelines/runtime.yml
index 9c5b24c8ceb3ee..e4a7c01a66bea9 100644
--- a/eng/pipelines/runtime.yml
+++ b/eng/pipelines/runtime.yml
@@ -421,9 +421,12 @@ extends:
                 eq(stageDependencies.EvaluatePaths.evaluate_paths.outputs['SetPathVars_runtimetests.containsChange'], true),
                 eq(variables['isRollingBuild'], true))
 
+      # Consolidated: build + test in one job (previously split build/test legs)
       - template: /eng/pipelines/common/platform-matrix.yml
         parameters:
           jobTemplate: /eng/pipelines/common/global-build-job.yml
+          helixQueuesTemplate: /eng/pipelines/coreclr/templates/helix-queues-setup.yml
+          helixQueueGroup: libraries
           buildConfig: ${{ variables.debugOnPrReleaseOnRolling }}
           platforms:
           - linux_musl_x64
@@ -431,25 +434,12 @@ extends:
           jobParameters:
             nameSuffix: Libraries_CheckedCoreCLR
             buildArgs: -s clr+libs+libs.tests -c $(_BuildConfig) -rc Checked /p:ArchiveTests=true
-            timeoutInMinutes: 120
+            timeoutInMinutes: 240
             postBuildSteps:
-              - template: /eng/pipelines/common/upload-artifact-step.yml
-                parameters:
-                  rootFolder: $(Build.SourcesDirectory)/artifacts/bin
-                  includeRootFolder: false
-                  archiveType: $(archiveType)
-                  archiveExtension: $(archiveExtension)
-                  tarCompression: $(tarCompression)
-                  artifactName: Libraries_CheckedCoreCLR_BuildArtifacts_$(osGroup)$(osSubgroup)_$(archType)_$(_BuildConfig)
-                  displayName: Build Assets
-              - template: /eng/pipelines/common/upload-artifact-step.yml
+              - template: /eng/pipelines/libraries/helix.yml
                 parameters:
-                  rootFolder: $(Build.SourcesDirectory)/artifacts/helix
-                  includeRootFolder: false
-                  archiveType: $(archiveType)
-                  archiveExtension: $(archiveExtension)
-                  tarCompression: $(tarCompression)
-                  artifactName: Libraries_CheckedCoreCLR_TestArtifacts_$(osGroup)$(osSubgroup)_$(archType)_$(_BuildConfig)
+                  creator: dotnet-bot
+                  testRunNamePrefixSuffix: coreclr_Checked
             condition: >-
               or(
                 eq(stageDependencies.EvaluatePaths.evaluate_paths.outputs['SetPathVars_coreclr.containsChange'], true),
@@ -520,10 +510,13 @@ extends:
                 eq(stageDependencies.EvaluatePaths.evaluate_paths.outputs['SetPathVars_runtimetests.containsChange'], true),
                 eq(variables['isRollingBuild'], true))
 
+      # Consolidated: build + test in one job (previously split build/test legs)
       - template: /eng/pipelines/common/platform-matrix.yml
         parameters:
           jobTemplate: /eng/pipelines/common/global-build-job.yml
-          buildConfig: checked
+          helixQueuesTemplate: /eng/pipelines/coreclr/templates/helix-queues-setup.yml
+          helixQueueGroup: libraries
+          buildConfig: Release
           platforms:
           - linux_x64
           - linux_musl_arm
@@ -531,26 +524,13 @@ extends:
           - windows_x64
           jobParameters:
             nameSuffix: CoreCLR_ReleaseLibraries
-            buildArgs: -s clr+libs+libs.tests -rc $(_BuildConfig) -c Release /p:ArchiveTests=true
-            timeoutInMinutes: 120
+            buildArgs: -s clr+libs+libs.tests -rc Checked -c $(_BuildConfig) /p:ArchiveTests=true
+            timeoutInMinutes: 240
             postBuildSteps:
-              - template: /eng/pipelines/common/upload-artifact-step.yml
-                parameters:
-                  rootFolder: $(Build.SourcesDirectory)/artifacts/bin
-                  includeRootFolder: false
-                  archiveType: $(archiveType)
-                  archiveExtension: $(archiveExtension)
-                  tarCompression: $(tarCompression)
-                  artifactName: CoreCLR_ReleaseLibraries_BuildArtifacts_$(osGroup)$(osSubgroup)_$(archType)_$(_BuildConfig)
-                  displayName: Build Assets
-              - template: /eng/pipelines/common/upload-artifact-step.yml
+              - template: /eng/pipelines/libraries/helix.yml
                 parameters:
-                  rootFolder: $(Build.SourcesDirectory)/artifacts/helix
-                  includeRootFolder: false
-                  archiveType: $(archiveType)
-                  archiveExtension: $(archiveExtension)
-                  tarCompression: $(tarCompression)
-                  artifactName: CoreCLR_ReleaseLibraries_TestArtifacts_$(osGroup)$(osSubgroup)_$(archType)_$(_BuildConfig)
+                  creator: dotnet-bot
+                  testRunNamePrefixSuffix: coreclr_Checked
             condition: >-
               or(
                 eq(stageDependencies.EvaluatePaths.evaluate_paths.outputs['SetPathVars_coreclr.containsChange'], true),
@@ -1951,8 +1931,8 @@ extends:
           buildConfig: ${{ variables.debugOnPrReleaseOnRolling }}
           platforms:
           - linux_arm64
-          - windows_x86
-          - linux_musl_x64
+          # Removed: windows_x86 and linux_musl_x64 — consolidated into
+          # the Libraries_CheckedCoreCLR build leg (now builds and sends to Helix directly).
           helixQueuesTemplate: /eng/pipelines/coreclr/templates/helix-queues-setup.yml
           helixQueueGroup: libraries
           jobParameters:
@@ -1966,32 +1946,9 @@ extends:
                 eq(stageDependencies.EvaluatePaths.evaluate_paths.outputs['SetPathVars_coreclr.containsChange'], true),
                 eq(variables['isRollingBuild'], true))
 
-      #
-      # Release Libraries Test Execution against a checked runtime
-      # Only if CoreCLR or Libraries is changed
-      #
-      - template: /eng/pipelines/common/platform-matrix.yml
-        parameters:
-          jobTemplate: /eng/pipelines/libraries/run-test-job.yml
-          buildConfig: Release
-          platforms:
-          - linux_musl_arm
-          - linux_musl_arm64
-          - linux_x64
-          - windows_x64
-          helixQueuesTemplate: /eng/pipelines/coreclr/templates/helix-queues-setup.yml
-          helixQueueGroup: libraries
-          jobParameters:
-            testScope: innerloop
-            liveRuntimeBuildConfig: checked
-            unifiedArtifactsName: CoreCLR_ReleaseLibraries_BuildArtifacts_$(osGroup)$(osSubgroup)_$(archType)_Checked
-            helixArtifactsName: CoreCLR_ReleaseLibraries_TestArtifacts_$(osGroup)$(osSubgroup)_$(archType)_Checked
-            unifiedBuildNameSuffix: CoreCLR_ReleaseLibraries
-            unifiedBuildConfigOverride: checked
-            condition: >-
-              or(
-                eq(stageDependencies.EvaluatePaths.evaluate_paths.outputs['SetPathVars_coreclr.containsChange'], true),
-                eq(variables['isRollingBuild'], true))
+      # Removed: Release Libraries Test Run for linux_musl_arm, linux_musl_arm64,
+      # linux_x64, windows_x64 against CoreCLR_ReleaseLibraries — consolidated into
+      # the build leg above (CoreCLR_ReleaseLibraries now builds and sends to Helix directly).
 
       - template: /eng/pipelines/common/platform-matrix.yml
         parameters: