| John Robinson's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Hardrock 100 2006 | Oregon, US | 41 | Friday, July 14, 2006 | 42:23:00.00 |
| Hardrock 100 2004 | Oregon, US | 39 | Friday, July 9, 2004 | DNF |
| Hardrock 100 2003 | Oregon, US | 38 | Friday, July 11, 2003 | 35:34:20.00 |
| Hardrock 100 2001 | Oregon, US | 36 | Friday, July 13, 2001 | 35:28:12.00 |