A team has finished a game with 6-7-7 runs-hits-errors line 2 times since 1897, most recently Chicago American Giants on 7 May 1946. That is about one every 221,502 team-games.
Box score for the most recent one ↗
6-7-1 6-7-4 6-7-3 6-7-0 6-7-6 6-7-5 6-7-7 6-7-8 6-8-1 6-8-5 6-8-8 6-8-3 6-8-4
The whole distribution — Runs-Hits-Errors Lines · All 18 shapes