A team has finished a game with 15-9 singles and extra-base hits 14 times since 1897, most recently Minnesota Twins on 12 June 2024. That is about one every 31,643 team-games.
Box score for the most recent one ↗
15-3 15-4 15-5 15-6 15-7 15-8 15-9 15-10 15-11 15-12 15-13 16-0 16-1
The whole distribution — Singles and Extra-Base Hits · All 18 shapes