| John DeWalt's efforts: | From | Finish Time |
|---|---|---|
| Hardrock 100 2009 | Pennsylvania, US | 47:47:17 |
| Hardrock 100 2008 | Pennsylvania, US | 47:54:58 |
| Hardrock 100 2007 | Pennsylvania, US | 47:36:23 |
| Hardrock 100 2006 | Pennsylvania, US | 47:49:52 |
| Hardrock 100 2005 | Pennsylvania, US | 45:20:18 |
| Hardrock 100 2004 | Pennsylvania, US | 45:06:33 |
| Hardrock 100 2003 | Pennsylvania, US | 44:44:44 |
| Hardrock 100 2001 | Pennsylvania, US | 39:52:35 |
| Hardrock 100 2000 | 44:28:21 | |
| Hardrock 100 1999 | Pennsylvania, US | 42:03:53 |
| Hardrock 100 1997 | Pennsylvania, US | 45:06:54 |
| Hardrock 100 1996 | Pennsylvania, US | 46:58:23 |
| Hardrock 100 1994 | Pennsylvania, US | 47:50:00 |