- Chuck Williams
- 82:38:37 hour(s):minute(s):second(s)
- United States (St. Louis)
The longest marathon playing baseball was 82 hours 38 min 37 sec, and was achieved by a group of 56 amateur baseball players from the Missouri area (all USA) at the GCS Ballpark in Sauget, Illinois, USA, between 23 May and 27 May 2019.
The group broke their previous record of 74 hr 26 min 53 sec and raised money for the Children's Hospital St. Louis.