| Darrell Roundy's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| 2024 Running Up For Air (Rock Canyon) (12 Hour) | Utah, US | 37 | Saturday, June 1, 2024 | 11:39:47.00 |
| 2022 Running Up For Air (Rock Canyon) (12 Hour) | Utah, US | 34 | Saturday, February 26, 2022 | 10:58:22.00 |
| 2022 Running Up For Air (SLC) (24H) | Utah, US | 34 | Saturday, February 5, 2022 | 22:40:42.00 |
| Quad Rock 2021 (Quad Rock 50) | Utah, US | 34 | Saturday, May 8, 2021 | Not yet started |
| Quad Rock 2020 (Quad Rock 50) | Colorado, US | 33 | Saturday, August 15, 2020 | Not yet started |