| Robert Andrulis's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Hardrock 100 2018 | Arizona, US | 50 | Friday, July 20, 2018 | DNF |
| Hardrock 100 2017 | Arizona, US | 49 | Friday, July 14, 2017 | 47:49:52.00 |
| Hardrock 100 2016 | Arizona, US | 48 | Friday, July 15, 2016 | DNF |
| Hardrock 100 2015 | Arizona, US | 48 | Friday, July 10, 2015 | 46:01:37.00 |
| Hardrock 100 2014 | Arizona, US | 47 | Friday, July 11, 2014 | 47:31:09.00 |
| Hardrock 100 2013 | Arizona, US | 45 | Friday, July 12, 2013 | 46:35:20.00 |
| Hardrock 100 2012 | Arizona, US | 45 | Friday, July 13, 2012 | 47:18:00.00 |
| Hardrock 100 2011 | Arizona, US | 44 | Friday, July 15, 2011 | 46:05:00.00 |
| Hardrock 100 2010 | Arizona, US | 42 | Friday, July 9, 2010 | 46:12:14.00 |
| The Bear 100 2009 | Arizona, US | 41 | Friday, September 25, 2009 | 34:49:00.00 |
| Hardrock 100 2009 | Arizona, US | 41 | Friday, July 10, 2009 | 46:02:24.00 |
| Hardrock 100 2008 | Arizona, US | 41 | Friday, July 11, 2008 | 46:46:32.00 |
| Hardrock 100 2007 | Arizona, US | 40 | Friday, July 13, 2007 | 47:04:24.00 |