A team has finished a game with 3-15-3 runs-hits-errors line 9 times since 1897, most recently San Francisco Giants on 8 August 1992. That is about one every 49,222 team-games.
Box score for the most recent one ↗
3-14-4 3-14-7 3-15-4 3-15-2 3-15-1 3-15-0 3-15-3 3-15-5 3-16-2 3-16-0 3-16-1 3-16-4 3-16-3
The whole distribution — Runs-Hits-Errors Lines · All 18 shapes