| Brent Harder's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Quad Rock 2022 (Quad Rock 25) | Colorado, US | 30 | Saturday, May 7, 2022 | 05:50:56.00 |
| 2019 Silverton Ultra Marathon (55K) | Colorado, US | 27 | Saturday, August 3, 2019 | DNF |
| Brent Harder's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Quad Rock 2022 (Quad Rock 25) | Colorado, US | 30 | Saturday, May 7, 2022 | 05:50:56.00 |
| 2019 Silverton Ultra Marathon (55K) | Colorado, US | 27 | Saturday, August 3, 2019 | DNF |