| David Williams's efforts: | From | Finish Time |
|---|---|---|
| Hardrock 100 2015 | California, US | DNF |
| Hardrock 100 2012 | California, US | 40:44:00 |
| Hardrock 100 2007 | California, US | 37:43:48 |
| David Williams's efforts: | From | Finish Time |
|---|---|---|
| Hardrock 100 2015 | California, US | DNF |
| Hardrock 100 2012 | California, US | 40:44:00 |
| Hardrock 100 2007 | California, US | 37:43:48 |