diff --git a/open-next.config.ts b/open-next.config.ts
index fa6cb73..b0354e1 100644
--- a/open-next.config.ts
+++ b/open-next.config.ts
@@ -1,3 +1,12 @@
 import { defineCloudflareConfig } from '@opennextjs/cloudflare';
+import r2IncrementalCache from '@opennextjs/cloudflare/overrides/incremental-cache/r2-incremental-cache';
 
-export default defineCloudflareConfig({});
+// Without an incrementalCache, OpenNext has nowhere to persist a rendered page,
+// so every prerendered route is regenerated from Supabase on EVERY request.
+// Measured 2026-08-10 on courses.opengolfapi.org: `x-nextjs-cache: MISS` on six
+// consecutive requests, TTFB 3.8-4.1s each, despite the response carrying
+// `x-nextjs-prerender: 1` and `s-maxage=3600`. The page was already prerendered;
+// there was simply no store to read it back out of.
+export default defineCloudflareConfig({
+  incrementalCache: r2IncrementalCache,
+});
diff --git a/wrangler.toml b/wrangler.toml
index a6118a9..1176cf2 100644
--- a/wrangler.toml
+++ b/wrangler.toml
@@ -9,6 +9,13 @@ directory = ".open-next/assets"
 binding = "ASSETS"
 run_worker_first = true
 
+# Incremental cache store for OpenNext. The binding name is not arbitrary:
+# @opennextjs/cloudflare's r2-incremental-cache override reads exactly
+# NEXT_INC_CACHE_R2_BUCKET.
+[[r2_buckets]]
+binding = "NEXT_INC_CACHE_R2_BUCKET"
+bucket_name = "opengolfapi-next-cache"
+
 # Set production secrets via:
 #   wrangler secret put NEXT_PUBLIC_SUPABASE_URL
 #   wrangler secret put NEXT_PUBLIC_SUPABASE_ANON_KEY