A team has finished a game with 7-7-8 runs-hits-errors line 1 time since 1897, most recently New York Giants on 13 May 1901. That is about one every 443,004 team-games.
Box score for the most recent one ↗
7-7-1 7-7-0 7-7-2 7-7-5 7-7-6 7-7-4 7-7-8 7-8-3 7-8-2 7-8-1 7-8-5 7-8-4 7-8-0
The whole distribution — Runs-Hits-Errors Lines · All 18 shapes