A team has finished a game with 12-8-1 runs-hits-errors line 7 times since 1897, most recently Washington Nationals on 7 April 2019. That is about one every 63,286 team-games.
Box score for the most recent one ↗
12-7-2 12-7-0 12-7-1 12-8-8 12-8-3 12-8-0 12-8-1 12-8-2 12-9-3 12-9-2 12-9-0 12-9-1 12-9-4
The whole distribution — Runs-Hits-Errors Lines · All 18 shapes