Most marathons completed under 2 hours 20 minutes
- Who
- Yuki Kawauchi
- What
- 104 total number
- Where
- Japan (Hofu)
- When
- 19 December 2021
The most marathons completed under 2 hours 20 minutes is 104 and was achieved by Yuki Kawauchi (Japan) at the Hofu Yomiuri Marathon in Hofu, Yamaguchi, Japan, on 19 December 2021.
Kawauchi's 104th marathon under 2 hours and 20 minutes was the Hofu Yomiuri Marathon with a time of 2 hr 10 min 11 sec.