| Glenn Mackie's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Hardrock 100 2016 | Texas, US | 54 | Friday, July 15, 2016 | DNF |
| Hardrock 100 2014 | Texas, US | 52 | Friday, July 11, 2014 | DNF |
| Hardrock 100 2013 | Texas, US | 51 | Friday, July 12, 2013 | 32:56:45.00 |
| Hardrock 100 2011 | Texas, US | 49 | Friday, July 15, 2011 | DNF |
| Hardrock 100 2010 | Colorado, US | 48 | Friday, July 9, 2010 | 32:36:50.00 |
| Hardrock 100 2008 | Texas, US | 46 | Friday, July 11, 2008 | 35:12:58.00 |
| Hardrock 100 2007 | Texas, US | 45 | Friday, July 13, 2007 | 30:45:12.00 |
| Hardrock 100 2006 | Texas, US | 44 | Friday, July 14, 2006 | 32:28:03.00 |
| Hardrock 100 2005 | Texas, US | 43 | Friday, July 8, 2005 | 37:58:21.00 |