A team has finished a game with 10-21-0 runs-hits-errors line 8 times since 1897, most recently St. Louis Cardinals on 14 July 2013. That is about one every 55,375 team-games.
Box score for the most recent one ↗
10-20-1 10-20-4 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
The whole distribution — Runs-Hits-Errors Lines · All 18 shapes