A team has finished a game with 6-15-3 runs-hits-errors line 68 times since 1897, most recently Colorado Rockies on 27 August 2019. That is about one every 6,514 team-games.
Box score for the most recent one ↗
6-14-2 6-14-6 6-14-5 6-14-7 6-14-4 6-14-9 6-15-3 6-15-1 6-15-2 6-15-6 6-15-4 6-15-0 6-15-5
The whole distribution — Runs-Hits-Errors Lines · All 18 shapes