- Bartlomiej Szczerba, Janusz Stachon-Gol
- 26:28:20 hour(s):minute(s):second(s)
- Poland (Zakopane)
The longest marathon playing badminton singles is 26 hr 28 min 20 sec, and was achieved by Bartlomiej Szczerba and Janusz Stachon-Gol (both Poland) in Zakopane, Poland, on 27 to 28 September 2019.
Both Bartlomiej and Janusz wanted to break this record in order to raise the profile of badminton in their local area. The result of the match was a win for Janusz 107 - 106.