| Duane Nelson's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Hardrock 100 2010 | Oregon, US | 53 | Friday, July 9, 2010 | DNF |
| The Bear 100 2009 | Oregon, US | 52 | Friday, September 25, 2009 | 34:46:00.00 |
| Hardrock 100 2009 | Oregon, US | 52 | Friday, July 10, 2009 | 47:26:32.00 |
| The Bear 100 2008 | Oregon, US | 51 | Friday, September 26, 2008 | DNF |
| Hardrock 100 2007 | Oregon, US | 51 | Friday, July 13, 2007 | DNF |
| Hardrock 100 2006 | Oregon, US | 50 | Friday, July 14, 2006 | 47:19:49.00 |
| Hardrock 100 2005 | Oregon, US | 49 | Friday, July 8, 2005 | DNF |
| Hardrock 100 2004 | Oregon, US | 48 | Friday, July 9, 2004 | DNF |
| Hardrock 100 2003 | Oregon, US | 47 | Friday, July 11, 2003 | 46:59:26.00 |
| Hardrock 100 2001 | Oregon, US | 45 | Friday, July 13, 2001 | 46:21:27.00 |
| Hardrock 100 1999 | Oregon, US | 42 | Friday, July 9, 1999 | DNF |
| Hardrock 100 1998 | Oregon, US | 41 | Friday, July 10, 1998 | DNF |