A team has finished a game with 3-12-5 runs-hits-errors line 26 times since 1897, most recently Baltimore Orioles on 17 June 1999. That is about one every 17,038 team-games.
Box score for the most recent one ↗
3-11-1 3-11-4 3-11-8 3-11-7 3-11-9 3-12-4 3-12-5 3-12-0 3-12-1 3-12-3 3-12-6 3-12-2 3-12-7
The whole distribution — Runs-Hits-Errors Lines · All 18 shapes