A team has finished a game with 1-12-2 runs-hits-errors line 40 times since 1897, most recently Cleveland Guardians on 18 April 2018. That is about one every 11,075 team-games.
Box score for the most recent one ↗
1-11-0 1-11-2 1-11-7 1-12-10 1-12-4 1-12-3 1-12-2 1-12-1 1-12-0 1-12-5 1-13-0 1-13-4 1-13-2
The whole distribution — Runs-Hits-Errors Lines · All 18 shapes