A team has finished a game with 7-4-3 runs-hits-errors line 3 times since 1897, most recently Chicago White Sox on 22 April 1922. That is about one every 147,668 team-games.
Box score for the most recent one ↗
7-3-1 7-3-9 7-3-2 7-3-0 7-4-1 7-4-2 7-4-3 7-4-0 7-5-0 7-5-2 7-5-3 7-5-1 7-5-4
The whole distribution — Runs-Hits-Errors Lines · All 18 shapes