| Gregg Dean's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Quad Rock 2022 (Quad Rock 25) | Colorado, US | 59 | Saturday, May 7, 2022 | 05:24:43.00 |
| Blue Sky Trail Marathon (2018) (Blue Sky) | Colorado, US | 55 | Saturday, October 20, 2018 | 04:09:32.00 |
| Gregg Dean's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Quad Rock 2022 (Quad Rock 25) | Colorado, US | 59 | Saturday, May 7, 2022 | 05:24:43.00 |
| Blue Sky Trail Marathon (2018) (Blue Sky) | Colorado, US | 55 | Saturday, October 20, 2018 | 04:09:32.00 |