| John Anderson's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Hardrock 100 2024 | California, US | 45 | Friday, July 12, 2024 | 38:02:55.00 |
| Hardrock 100 2015 | California, US | 37 | Friday, July 10, 2015 | 33:18:45.00 |
| Hardrock 100 2010 | Colorado, US | 31 | Friday, July 9, 2010 | 31:41:44.00 |
| Hardrock 100 2007 | Colorado, US | 29 | Friday, July 13, 2007 | DNF |