A team has finished a game with 15-6 singles and extra-base hits 81 times since 1897, most recently Chicago Cubs on 20 May 2025. That is about one every 5,469 team-games.
Box score for the most recent one ↗
15-0 15-1 15-2 15-3 15-4 15-5 15-6 15-7 15-8 15-9 15-10 15-11 15-12
The whole distribution — Singles and Extra-Base Hits · All 18 shapes