| Kirk Apt's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Hardrock 100 2023 | Colorado, US | 61 | Friday, July 14, 2023 | DNF |
| Hardrock 100 2022 | Colorado, US | 60 | Friday, July 15, 2022 | 46:42:59.00 |
| Hardrock 100 2021 | Colorado, US | 59 | Friday, July 16, 2021 | 46:53:28.00 |
| Hardrock 100 2018 | Colorado, US | 56 | Friday, July 20, 2018 | 43:16:56.00 |
| Hardrock 100 2017 | Colorado, US | 55 | Friday, July 14, 2017 | 43:23:07.00 |
| Hardrock 100 2016 | Colorado, US | 54 | Friday, July 15, 2016 | 42:47:33.00 |
| Hardrock 100 2015 | Colorado, US | 53 | Friday, July 10, 2015 | 43:54:21.00 |
| Hardrock 100 2014 | Colorado, US | 52 | Friday, July 11, 2014 | 39:38:51.00 |
| Hardrock 100 2013 | Colorado, US | 51 | Friday, July 12, 2013 | 42:04:09.00 |
| Hardrock 100 2012 | Colorado, US | 50 | Friday, July 13, 2012 | 38:24:00.00 |
| Hardrock 100 2011 | Colorado, US | 49 | Friday, July 15, 2011 | 43:47:00.00 |
| Hardrock 100 2010 | Colorado, US | 48 | Friday, July 9, 2010 | 38:05:14.00 |
| Hardrock 100 2009 | Colorado, US | 47 | Friday, July 10, 2009 | 38:29:44.00 |
| Hardrock 100 2008 | Colorado, US | 46 | Friday, July 11, 2008 | 39:46:40.00 |
| Hardrock 100 2007 | Colorado, US | 45 | Friday, July 13, 2007 | 38:25:28.00 |
| Hardrock 100 2006 | Colorado, US | 44 | Friday, July 14, 2006 | 33:10:13.00 |
| The Bear 100 2005 | 43 | Friday, September 23, 2005 | 27:31:20.00 | |
| Hardrock 100 2005 | Colorado, US | 43 | Friday, July 8, 2005 | 35:52:16.00 |
| Hardrock 100 2004 | Colorado, US | 42 | Friday, July 9, 2004 | 32:34:16.00 |
| Hardrock 100 2003 | Colorado, US | 41 | Friday, July 11, 2003 | 31:36:37.00 |
| The Bear 100 2002 | Colorado, US | 40 | Friday, September 27, 2002 | 26:42:06.00 |
| Hardrock 100 2001 | Colorado, US | 39 | Friday, July 13, 2001 | 31:40:00.00 |
| Hardrock 100 2000 | 38 | Friday, July 7, 2000 | 29:35:00.00 | |
| Hardrock 100 1999 | Colorado, US | 37 | Friday, July 9, 1999 | 33:39:53.00 |
| Hardrock 100 1998 | Colorado, US | 36 | Friday, July 10, 1998 | 31:03:20.00 |
| Hardrock 100 1997 | Colorado, US | 35 | Friday, July 11, 1997 | 32:43:58.00 |
| Hardrock 100 1996 | Colorado, US | 34 | Friday, July 12, 1996 | 35:35:50.00 |
| Hardrock 100 1994 | Colorado, US | 32 | Friday, July 8, 1994 | 32:29:00.00 |
| Hardrock 100 1993 | Colorado, US | 31 | Friday, July 9, 1993 | 34:21:00.00 |
| Hardrock 100 1992 | Colorado, US | 30 | Friday, July 10, 1992 | DNF |