A team has finished a game with 6-6-5 runs-hits-errors line 5 times since 1897, most recently Pittsburgh Pirates on 24 September 1976. That is about one every 88,600 team-games.
Box score for the most recent one ↗
6-6-1 6-6-3 6-6-0 6-6-2 6-6-4 6-6-6 6-6-5 6-7-2 6-7-1 6-7-4 6-7-3 6-7-0 6-7-6
The whole distribution — Runs-Hits-Errors Lines · All 18 shapes