Custer, SD
| Rank | Year | Name | Category | Time |
|---|---|---|---|---|
| 1 | 2012 | Paul Hopwood | M 40-49 | 15:14:15 |
| 2 | 2007 | Akos Konya | M 30-39 | 15:24:00 |
| 3 | 2010 | Mike Vance | M 40-49 | 15:25:00 |
| 4 | 2011 | Thomas Whalen | M 40-49 | 15:34:12 |
| 5 | 2012 | John Maas | M 50-59 | 15:37:23 |
| 6 | 2008 | Jon Olsen | M 30-39 | 15:40:33 |
| 7 | 2013 | Jordan Hanlon | M 20-29 | 15:59:53 |
| 8 | 2012 | Jeremy Morris | M 30-39 | 16:01:41 |
| 9 | 2022 | Keith Miller | M 30-39 | 16:19:41 |
| 10 | 2011 | Matthew Raterman | M 30-39 | 16:40:43 |
| 11 | 2013 | Chris Rubesch | M 20-29 | 16:40:46 |
| 12 | 2007 | Ryan Loehding | M 30-39 | 16:43:00 |
| 13 | 2017 | Cory Logsdon | M 20-29 | 16:44:53 |
| 14 | 2009 | Akos Konya | M 30-39 | 16:47:31 |
| 15 | 2008 | Jenny Capel | F 30-39 | 16:55:30 |
| 16 | 2019 | Don Reichelt | M 30-39 | 17:16:48 |
| 17 | 2009 | Michael Adams | M 30-39 | 17:25:59 |
| 18 | 2006 | Ryan Loehding | M 30-39 | 17:38:30 |
| 19 | 2005 | Jeff Christian | M 30-39 | 17:38:34 |
| 20 | 2010 | Blake Thompson | M 20-29 | 17:45:24 |
| 21 | 2018 | Mark Wilcox | M 40-49 | 17:51:29 |
| 22 | 2012 | Rod Huddleston | M 50-59 | 17:59:11 |
| 23 | 2021 | Hans Van Zanten | M 40-49 | 17:59:39 |
| 24 | 2022 | Tim Fryer | M 40-49 | 18:00:05 |
| 25 | 2007 | Anthony Mayo | M 20-29 | 18:04:00 |
| 26 | 2005 | John Dodds | M 50-59 | 18:06:00 |
| 27 | 2007 | Mark Henderson | M 40-49 | 18:06:00 |
| 28 | 2022 | Relena Ribbons | F 30-39 | 18:06:47 |
| 29 | 2008 | David Holmen | M 40-49 | 18:09:46 |
| 30 | 2021 | Christopher Apodaca | M 30-39 | 18:12:35 |
| 31 | 2015 | Mary Flaws | F 40-49 | 18:13:06 |
| 32 | 2008 | John Storkamp | M 20-29 | 18:16:26 |
| 33 | 2016 | Marcel Thielke | M 20-29 | 18:20:45 |
| 34 | 2021 | Laren Roderick | M 40-49 | 18:23:02 |
| 35 | 2012 | Jeremy Bradford | M 30-39 | 18:27:48 |
| 36 | 2014 | Jeremy Bradford | M 30-39 | 18:33:07 |
| 37 | 2008 | Dann Fisher | M 40-49 | 18:33:38 |
| 38 | 2006 | Shane Sampson | M 40-49 | 18:33:55 |
| 39 | 2023 | Austin Baade | M 20-29 | 18:34:01 |
| 40 | 2018 | Terry Boyd | M 50-59 | 18:35:17 |
| 41 | 2009 | Randy Myers | M 40-49 | 18:36:17 |
| 42 | 2008 | John Maas | M 40-49 | 18:36:37 |
| 43 | 2011 | Keith Straw | M 50-59 | 18:41:52 |
| 44 | 2009 | Fred Roberts | M 40-49 | 18:42:04 |
| 45 | 2019 | Hans Van Zanten | M 40-49 | 18:43:59 |
| 46 | 2014 | Robert Bondurant | M 40-49 | 18:47:10 |
| 47 | 2021 | Amber Hardwig | F 40-49 | 18:50:38 |
| 48 | 2007 | Rick Weismiller | M 20-29 | 18:55:00 |
| 49 | 2015 | Kyle Blasch | M 40-49 | 18:55:13 |
| 50 | 2005 | John Bridges | M 20-29 | 18:57:32 |
| 51 | 2011 | Jay Danek | M 30-39 | 19:01:12 |
| 52 | 2008 | Gary Griffin | M 50-59 | 19:02:30 |
| 53 | 2018 | Lauren Mitchell | F 30-39 | 19:03:16 |
| 54 | 2005 | Shane Sampson | M 40-49 | 19:06:42 |
| 55 | 2018 | Shan Riggs | M 30-39 | 19:07:45 |
| 56 | 2015 | Gregory Desautel | M 40-49 | 19:10:02 |
| 57 | 2008 | Robert Towne | M 50-59 | 19:11:59 |
| 58 | 2010 | Michael Hinterberg | M 30-39 | 19:12:50 |
| 59 | 2022 | Austin Baade | M 20-29 | 19:14:57 |
| 60 | 2017 | Even Semrud | M 20-29 | 19:15:15 |
| 61 | 2016 | Tim Fryer | M 30-39 | 19:15:53 |
| 62 | 2007 | Robert Cowan | M 40-49 | 19:19:00 |
| 63 | 2005 | Mark Henderson | M 40-49 | 19:26:12 |
| 64 | 2005 | Kevin Dorsey | M 30-39 | 19:26:12 |
| 65 | 2009 | Eric Bindner | M 50-59 | 19:26:30 |
| 66 | 2016 | Adam Monke | M 20-29 | 19:26:48 |
| 67 | 2008 | Steven Escaler | M 30-39 | 19:36:24 |
| 68 | 2008 | Larry White | M 40-49 | 19:38:45 |
| 69 | 2005 | John Hemsky | M 30-39 | 19:41:35 |
| 70 | 2022 | Christopher Apodaca | M 30-39 | 19:43:04 |
| 71 | 2018 | Jacob Gallagher | M 20-29 | 19:45:58 |
| 72 | 2012 | Steven Bailey | M 30-39 | 19:50:40 |
| 73 | 2007 | Mike Samuelson | M 40-49 | 19:51:00 |
| 74 | 2017 | Travis Jewell | M 30-39 | 19:51:28 |
| 75 | 2012 | Brian Hsia | M 30-39 | 19:51:53 |
| 76 | 2021 | Ben Sandy | M 40-49 | 19:52:26 |
| 77 | 2006 | Andrew Davis | M 30-39 | 19:52:40 |
| 78 | 2006 | Ben Gilbert | M 30-39 | 19:52:51 |
| 79 | 2013 | Timothy Dailey | M 30-39 | 19:56:08 |
| 80 | 2017 | Terry Boyd | M 50-59 | 20:00:42 |
| 81 | 2010 | Dale Humphrey | M 50-59 | 20:00:59 |
| 82 | 2021 | Chris Rubesch | M 30-39 | 20:04:57 |
| 83 | 2009 | Brian Coughlin | M 30-39 | 20:08:19 |
| 84 | 2010 | Brad Rhodebeck | M 40-49 | 20:08:34 |
| 85 | 2006 | Mike Sheehy | M 30-39 | 20:11:00 |
| 86 | 2008 | Larry Cawthon | M 60-69 | 20:16:56 |
| 87 | 2010 | Larry Cawthon | M 60-69 | 20:16:56 |
| 88 | 2011 | Joshua Wopata | M 30-39 | 20:18:09 |
| 89 | 2012 | David Clark | M 40-49 | 20:19:17 |
| 90 | 2010 | Chris Stores | M 30-39 | 20:21:15 |
| 91 | 2012 | Scot Kuwaye | M 40-49 | 20:27:56 |
| 92 | 2012 | Lorie Alexander | F 50-59 | 20:29:24 |
| 93 | 2012 | Greg Dyck | M 40-49 | 20:29:24 |
| 94 | 2011 | Deborah Hamberlin | F 40-49 | 20:30:01 |
| 95 | 2021 | Bill Burgess | M 40-49 | 20:32:15 |
| 96 | 2005 | Dallas Sigurdur | M 30-39 | 20:33:45 |
| 97 | 2010 | Eric Fritz | M 40-49 | 20:36:42 |
| 98 | 2013 | Connor Johnson | M 20-29 | 20:36:58 |
| 99 | 2009 | Harry Hamilton | M 40-49 | 20:37:15 |
| 100 | 2018 | Dan Riefenberg | M 30-39 | 20:37:18 |
