| John Martin's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Never Summer (2021) (60k) | Colorado, US | 42 | Friday, July 30, 2021 | 09:44:53.00 |
| Blue Sky Marathon 2020 (Blue Sky) | Colorado, US | 41 | Saturday, November 14, 2020 | Not yet started |
| John Martin's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Never Summer (2021) (60k) | Colorado, US | 42 | Friday, July 30, 2021 | 09:44:53.00 |
| Blue Sky Marathon 2020 (Blue Sky) | Colorado, US | 41 | Saturday, November 14, 2020 | Not yet started |