A team has finished a game with 20-21-2 runs-hits-errors line 5 times since 1897, most recently Chicago Cubs on 1 August 2023. That is about one every 88,600 team-games.
Box score for the most recent one ↗
20-19-1 20-19-5 20-20-3 20-20-2 20-20-1 20-20-0 20-21-2 20-21-5 20-21-1 20-21-3 20-21-0 20-22-3 20-22-2
The whole distribution — Runs-Hits-Errors Lines · All 18 shapes