A team has finished a game with 12-11-5 runs-hits-errors line 4 times since 1897, most recently Cleveland Guardians on 30 May 1932. That is about one every 110,751 team-games.
Box score for the most recent one ↗
12-10-5 12-10-3 12-10-0 12-10-4 12-10-2 12-10-1 12-11-5 12-11-0 12-11-1 12-11-3 12-11-4 12-11-2 12-11-6
The whole distribution — Runs-Hits-Errors Lines · All 18 shapes