Helena, MT
| Rank | Year | Name | Category | Time |
|---|---|---|---|---|
| 1 | 2004 | Jonathan Wirth | M 20-29 | 4:06:22 |
| 2 | 2001 | Brian Wieck | M 20-29 | 4:11:03 |
| 3 | 2004 | Brian Wieck | M 30-39 | 4:14:35 |
| 4 | 2011 | Mike Wolfe | M 30-39 | 4:20:42 |
| 5 | 1999 | Brian Wieck | M 20-29 | 4:21:54 |
| 6 | 2003 | Brian Wieck | M 30-39 | 4:27:52 |
| 7 | 1999 | Alex Feldman | M 40-49 | 4:28:57 |
| 8 | 2011 | Justin Yates | M 20-29 | 4:30:17 |
| 9 | 1999 | Anthony Skalicky | M 40-49 | 4:35:15 |
| 10 | 2000 | Brian Wieck | M 20-29 | 4:39:20 |
| 11 | 2009 | Justin Yates | M 20-29 | 4:39:36 |
| 12 | 1999 | Steven Weyl | M 40-49 | 4:40:50 |
| 13 | 1999 | John Hallsten | M 40-49 | 4:43:13 |
| 14 | 1999 | Marc Shomion | M 30-39 | 4:43:23 |
| 15 | 2009 | Mike Telling | M 40-49 | 4:46:22 |
| 16 | 1999 | Michael Fraser | M 40-49 | 4:52:26 |
| 17 | 2004 | Marc Shomion | M 30-39 | 4:53:27 |
| 18 | 2011 | Ryan Smith | M 30-39 | 4:54:48 |
| 19 | 2002 | Martin Rollefson | M 50-59 | 4:55:54 |
| 20 | 2022 | Grant Barnette | M 20-29 | 4:55:56 |
| 21 | 1999 | Kevin Taverner | M 30-39 | 4:57:25 |
| 22 | 2003 | Martin Rollefson | M 50-59 | 5:01:16 |
| 23 | 1998 | Marc Shomion | M 20-29 | 5:01:55 |
| 24 | 1999 | Rod Dickie | M 40-49 | 5:02:33 |
| 25 | 2003 | Charles Charman | M 40-49 | 5:03:07 |
| 26 | 2000 | Lisa Kline | F 30-39 | 5:03:55 |
| 27 | 2004 | Justin Smith | M 30-39 | 5:05:47 |
| 28 | 1999 | Andrew Matulionis | M 30-39 | 5:06:02 |
| 29 | 2004 | Charles Charman | M 40-49 | 5:06:21 |
| 30 | 1998 | Todd Dobson | M 30-39 | 5:07:14 |
| 31 | 1999 | Gary Hanson | M 50-59 | 5:07:28 |
| 32 | 2000 | Phil Hess | M 30-39 | 5:07:40 |
| 33 | 2001 | Michael Fraser | M 50-59 | 5:09:13 |
| 34 | 2001 | Tammy Peterson | F 40-49 | 5:09:58 |
| 35 | 2001 | Paul Lavigne | M 40-49 | 5:09:58 |
| 36 | 2004 | Tammy Peterson | F 40-49 | 5:11:07 |
| 37 | 1998 | Barbara Cosens | F 40-49 | 5:11:11 |
| 38 | 2002 | Lisa Smith | F 30-39 | 5:11:22 |
| 39 | 2002 | Michael Fraser | M 50-59 | 5:11:22 |
| 40 | 2004 | Bill Johnston | M 50-59 | 5:11:57 |
| 41 | 2002 | Tim Phillips | M 30-39 | 5:14:02 |
| 42 | 1999 | Todd Scott | M 30-39 | 5:14:10 |
| 43 | 1999 | Ken Gray | M 50-59 | 5:14:11 |
| 44 | 2023 | Matt Hoffman | M 30-39 | 5:16:39 |
| 45 | 1999 | Richard Spady | M 40-49 | 5:16:40 |
| 46 | 1999 | Daniel Burmeister | M 40-49 | 5:16:40 |
| 47 | 1999 | Charles Hansberry | M 30-39 | 5:17:22 |
| 48 | 2007 | Brian Vandenburg | M 20-29 | 5:17:30 |
| 49 | 1999 | Travis Clark | M < 20 | 5:18:00 |
| 50 | 2002 | George Roulett | M 40-49 | 5:18:02 |
| 51 | 2001 | Charlie Wellenstein | M 40-49 | 5:18:13 |
| 52 | 2001 | Craig Krueger | M 30-39 | 5:18:13 |
| 53 | 1999 | Anne Lichtenwalner | F 40-49 | 5:18:44 |
| 54 | 2007 | Linden Mallory | M 20-29 | 5:19:30 |
| 55 | 2002 | Jody Aslett | F 30-39 | 5:19:32 |
| 56 | 2001 | Marc Shomion | M 30-39 | 5:20:02 |
| 57 | 2004 | Jackie van Dyke | F 40-49 | 5:20:30 |
| 58 | 1999 | Don Greene | M 30-39 | 5:20:50 |
| 59 | 2003 | Rino Pasquotti | M 30-39 | 5:21:10 |
| 60 | 1999 | Glenys Hermanutz | F 40-49 | 5:21:11 |
| 61 | 1998 | Phillip Simon | M 40-49 | 5:21:31 |
| 62 | 2011 | Donald Demetriades | M 50-59 | 5:22:02 |
| 63 | 2022 | Mike Nash | M 30-39 | 5:22:32 |
| 64 | 1998 | Tony Louie | M 30-39 | 5:23:23 |
| 65 | 1999 | Jeffrey Lepley | M 40-49 | 5:23:45 |
| 66 | 1999 | Margaret Bentwood | F 40-49 | 5:24:48 |
| 67 | 2010 | Bryan Johnson | M 30-39 | 5:26:04 |
| 68 | 2010 | Marta Fisher | F 30-39 | 5:26:26 |
| 69 | 2001 | Sean Thornton | M 20-29 | 5:28:37 |
| 70 | 2003 | Tom Porter | M 30-39 | 5:28:39 |
| 71 | 2000 | Richard Desimone | M 40-49 | 5:29:09 |
| 72 | 1998 | Michael Fraser | M 40-49 | 5:29:20 |
| 73 | 2013 | Bryan Johnson | M 30-39 | 5:29:34 |
| 74 | 2002 | Bill Johnson | F 40-49 | 5:30:00 |
| 75 | 2001 | Brian Costilow | M 20-29 | 5:30:03 |
| 76 | 2000 | Steve Engebrecht | M 30-39 | 5:30:22 |
| 77 | 2007 | Mike Walsh | M 50-59 | 5:30:48 |
| 78 | 2000 | Richard Spady | M 40-49 | 5:31:16 |
| 79 | 2006 | Mike Walsh | M 50-59 | 5:32:07 |
| 80 | 2004 | Carolyn Hutniak | F 40-49 | 5:32:08 |
| 81 | 2010 | Troy Frost | M 40-49 | 5:32:38 |
| 82 | 2013 | Scott Gaiser | M 50-59 | 5:32:47 |
| 83 | 1999 | Glenna Burmeister | F 40-49 | 5:34:30 |
| 84 | 2002 | Gerard Boland | M 40-49 | 5:35:24 |
| 85 | 2001 | Jackie van Dyke | F 40-49 | 5:36:03 |
| 86 | 2001 | Tammie Engebrecht | F 30-39 | 5:36:03 |
| 87 | 2009 | Ben Guerard | M 30-39 | 5:36:07 |
| 88 | 2000 | Thomas Miller | M 30-39 | 5:37:04 |
| 89 | 2011 | Fred Thompson | M 30-39 | 5:37:12 |
| 90 | 2017 | David Bresnahan | M 30-39 | 5:37:22 |
| 91 | 1999 | Roger Adams | M 30-39 | 5:37:24 |
| 92 | 2004 | Lyle Martin | M 30-39 | 5:37:49 |
| 93 | 2004 | Joseph Scalia | M 40-49 | 5:38:10 |
| 94 | 2003 | Richard Travis | M 40-49 | 5:38:14 |
| 95 | 2022 | Jeff Sabatka | M 30-39 | 5:38:34 |
| 96 | 2002 | Eric Boswell | M 30-39 | 5:38:50 |
| 97 | 1998 | Peter Estabrooks | M 30-39 | 5:41:08 |
| 98 | 2008 | Zanna Drobnik | F 30-39 | 5:41:13 |
| 99 | 2023 | Erin Moyer | F 20-29 | 5:41:29 |
| 100 | 2023 | Leah Handelman | F 30-39 | 5:42:09 |
