diff --git a/.github/workflows/Bench.yml b/.github/workflows/Bench.yml
index f3ee77e..2bc3f32 100644
--- a/.github/workflows/Bench.yml
+++ b/.github/workflows/Bench.yml
@@ -4,6 +4,10 @@ on:
   push:
     branches:
       - main
+  pull_request:
+  # `workflow_dispatch` allows CodSpeed to trigger backtest
+  # performance analysis in order to generate initial data.
+  workflow_dispatch:
 
 env:
   UV_CACHE_DIR: "/tmp/.uv-cache"