diff --git a/PROGRESS.md b/PROGRESS.md
index 9a038c6..a45240f 100644
--- a/PROGRESS.md
+++ b/PROGRESS.md
@@ -6,6 +6,16 @@
 
 **Last Updated: 2026-03-29** (Phase 10 Complete - All deliverables implemented)
 
+### Marathon Verification (2026-03-29 Iteration 3)
+- Project verified complete - no remaining work
+- Web build: passing (272ms, 5 chunks)
+- Worker-api tests: 17/17 passing
+- Git status: clean, up to date with origin/master
+- Architecture conformance: verified
+  - K8s manifests in `cluster-configuration/apexalgo-iad/ai-code-battle/`
+  - acb-matchmaker separate from acb-api per plan
+  - All cmd packages present and accounted for
+
 ### Marathon Verification (2026-03-29)
 - All phases verified complete
 - Web build: passing