| Dennis Gamroth's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Hardrock 100 2021 | Oregon, US | 50 | Friday, July 16, 2021 | DNF |
| Hardrock 100 2017 | Oregon, US | 46 | Friday, July 14, 2017 | 38:38:42.00 |
| Dennis Gamroth's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Hardrock 100 2021 | Oregon, US | 50 | Friday, July 16, 2021 | DNF |
| Hardrock 100 2017 | Oregon, US | 46 | Friday, July 14, 2017 | 38:38:42.00 |