| Paul Gross's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Hardrock 100 2015 | Colorado, US | 51 | Friday, July 10, 2015 | DNF |
| Hardrock 100 2013 | Colorado, US | 48 | Friday, July 12, 2013 | 44:10:43.00 |
| Hardrock 100 2008 | Colorado, US | 44 | Friday, July 11, 2008 | 46:18:29.00 |
| Hardrock 100 2006 | Colorado, US | 42 | Friday, July 14, 2006 | 46:27:52.00 |