A team has finished a game with 9-21-0 runs-hits-errors line 6 times since 1897, most recently Oakland Athletics on 28 July 2009. That is about one every 73,834 team-games.
Box score for the most recent one ↗
9-20-1 9-20-3 9-20-4 9-20-0 9-21-1 9-21-2 9-21-0 9-21-4 9-21-5 9-22-3 9-22-5 9-22-2 9-22-0
The whole distribution — Runs-Hits-Errors Lines · All 18 shapes