| Betsy Kalmeyer's efforts: | From | Age | Date | Finish Time |
|---|---|---|---|---|
| Hardrock 100 2022 | Colorado, US | 61 | Friday, July 15, 2022 | DNF |
| Hardrock 100 2021 | Colorado, US | 60 | Friday, July 16, 2021 | 45:47:17.00 |
| Hardrock 100 2018 | Colorado, US | 57 | Friday, July 20, 2018 | 47:02:40.00 |
| Hardrock 100 2017 | Colorado, US | 56 | Friday, July 14, 2017 | 45:08:35.00 |
| Hardrock 100 2016 | Colorado, US | 55 | Friday, July 15, 2016 | 45:50:25.00 |
| Hardrock 100 2015 | Colorado, US | 54 | Friday, July 10, 2015 | 38:36:16.00 |
| Hardrock 100 2014 | Colorado, US | 53 | Friday, July 11, 2014 | 37:57:22.00 |
| Hardrock 100 2013 | Colorado, US | 52 | Friday, July 12, 2013 | 39:48:40.00 |
| Hardrock 100 2012 | Colorado, US | 51 | Friday, July 13, 2012 | 40:26:00.00 |
| Hardrock 100 2011 | Colorado, US | 50 | Friday, July 15, 2011 | DNF |
| Hardrock 100 2010 | Colorado, US | 49 | Friday, July 9, 2010 | 34:39:33.00 |
| Hardrock 100 2009 | Colorado, US | 48 | Friday, July 10, 2009 | 35:35:05.00 |
| Hardrock 100 2008 | Colorado, US | 47 | Friday, July 11, 2008 | 33:25:58.00 |
| Hardrock 100 2007 | Colorado, US | 46 | Friday, July 13, 2007 | 36:14:08.00 |
| Hardrock 100 2006 | Colorado, US | 45 | Friday, July 14, 2006 | 31:53:51.00 |
| Hardrock 100 2005 | Colorado, US | 44 | Friday, July 8, 2005 | 34:55:21.00 |
| Hardrock 100 2004 | Colorado, US | 43 | Friday, July 9, 2004 | 32:48:52.00 |
| Hardrock 100 2003 | Colorado, US | 42 | Friday, July 11, 2003 | 34:20:06.00 |
| Hardrock 100 2001 | Colorado, US | 40 | Friday, July 13, 2001 | 29:58:00.00 |
| Hardrock 100 2000 | Colorado, US | 39 | Friday, July 7, 2000 | 33:05:50.00 |
| Hardrock 100 1999 | Colorado, US | 38 | Friday, July 9, 1999 | 31:55:19.00 |
| Hardrock 100 1996 | Colorado, US | 35 | Friday, July 12, 1996 | 40:43:13.00 |