| Jack Anderson's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Never Summer 100k (2023) | Colorado, US | 40 | Saturday, July 29, 2023 | 22:44:20.00 |
| Hardrock 100 2021 | Colorado, US | 38 | Friday, July 16, 2021 | 37:29:00.00 |
| Quad Rock 2021 (Quad Rock 50) | Colorado, US | 38 | Saturday, May 8, 2021 | 10:13:42.00 |
| Quad Rock 2020 (Quad Rock 50) | Colorado, US | 37 | Saturday, August 15, 2020 | 13:42:55.00 |