- Who
- Alex Grence, Chris Hetzel , Cole Hetzel , Grant McElwee, Andrew Harris, Matt Harris, Matthew Jackman , James Blair, Rachel Turnbill, Darcy Grence
- What
- 30:02:00 hour(s):minute(s):second(s)
- Where
- United States (Fort Mitchell)
- When
The longest marathon playing four square is 30 hr 2 min, and was achieved by Alex Grence, Chris Hetzel, Cole Hetzel, Grant McElwee, Andrew Harris, Matt Harris, Matthew Jackman, James Blair, Rachel Turnbill, and Darcy Grence (all USA) in Fort Mitchell, Kentucky, USA, from 31 May to 1 June 2021.
One of the players participated in the Longest Wiffleball marathon record attempt and decided to put together a team to attempt this record.