A team has finished a game with 10-21-2 runs-hits-errors line 7 times since 1897, most recently San Francisco Giants on 4 May 1987. That is about one every 63,286 team-games.
Box score for the most recent one ↗
10-20-2 10-20-3 10-20-0 10-21-6 10-21-0 10-21-1 10-21-2 10-22-2 10-22-1 10-22-0 10-23-4 10-23-1 10-24-6
The whole distribution — Runs-Hits-Errors Lines · All 18 shapes