| Mark Wilcox's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Quad Rock 2021 (Quad Rock 50) | Colorado, US | 49 | Saturday, May 8, 2021 | 13:04:00.00 |
| 2017 Golden Gate Dirty 30 (50K) | Colorado, US | 46 | Saturday, June 3, 2017 | 07:50:19.91 |
| Mark Wilcox's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Quad Rock 2021 (Quad Rock 50) | Colorado, US | 49 | Saturday, May 8, 2021 | 13:04:00.00 |
| 2017 Golden Gate Dirty 30 (50K) | Colorado, US | 46 | Saturday, June 3, 2017 | 07:50:19.91 |