| Joe Clapper's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Hardrock 100 2009 | Virginia, US | 50 | Friday, July 10, 2009 | 39:11:09.00 |
| Hardrock 100 2001 | Virginia, US | 43 | Friday, July 13, 2001 | DNF |
| Hardrock 100 2000 | Friday, July 7, 2000 | DNF | ||
| Hardrock 100 1998 | Virginia, US | 39 | Friday, July 10, 1998 | 31:47:37.00 |
| Hardrock 100 1996 | Virginia, US | 37 | Friday, July 12, 1996 | 34:51:15.00 |