| Shannon Castor's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Never Summer (2021) (100k) | Colorado, US | 27 | Saturday, July 31, 2021 | DNF |
| Quad Rock 2020 (Quad Rock 25) | Colorado, US | 26 | Saturday, August 15, 2020 | 06:18:11.00 |
| Shannon Castor's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Never Summer (2021) (100k) | Colorado, US | 27 | Saturday, July 31, 2021 | DNF |
| Quad Rock 2020 (Quad Rock 25) | Colorado, US | 26 | Saturday, August 15, 2020 | 06:18:11.00 |