A team has finished a game with 15-13-2 runs-hits-errors line 7 times since 1897, most recently Kansas City Royals on 22 June 2006. That is about one every 63,286 team-games.
Box score for the most recent one ↗
15-12-6 15-12-5 15-12-4 15-12-1 15-13-3 15-13-1 15-13-2 15-13-0 15-13-4 15-13-5 15-14-2 15-14-4 15-14-3
The whole distribution — Runs-Hits-Errors Lines · All 18 shapes