- Jordan Tropf
- 07:31:30 hour(s), minute(s), second(s)
- アメリカ合衆国 (Baltimore, Chicago, and Boston)
The fastest combined time for three marathons in three days is 7 hr 31 min 30 sec, and was achieved by Jordan Tropf (USA) in Baltimore, Chicago, and Boston throughout the United States from 8-10 October 2021.
The average time of the three marathons ran was 2 hr 30 min and 30 sec per marathon.