Westcliffe, CO
| Rank | Year | Name | Category | Time |
|---|---|---|---|---|
| 1 | 2021 | Dustin Johnson | M 30-39 | 12:06:00 |
| 2 | 2021 | August Ollrich | M 30-39 | 12:19:00 |
| 3 | 2020 | Kathryn Dickmann | F 20-29 | 12:55:00 |
| 4 | 2019 | Ed Delosh | M 50-59 | 13:08:00 |
| 5 | 2023 | Matt Gorbett | M 30-39 | 13:08:00 |
| 6 | 2020 | Gwen Rudy | F 20-29 | 13:24:00 |
| 7 | 2020 | Erich Owen | M 40-49 | 13:31:00 |
| 8 | 2023 | Amy Hume | F 40-49 | 13:37:00 |
| 9 | 2018 | Josh Miller | M 20-29 | 13:39:00 |
| 10 | 2023 | David Frey | M 20-29 | 13:40:00 |
| 11 | 2020 | Pete Surgent | M 40-49 | 13:46:00 |
| 12 | 2020 | Tracy Thelen | F 40-49 | 13:51:00 |
| 13 | 2023 | Maria Smead | F 40-49 | 14:09:00 |
| 14 | 2020 | Nathan Simkowski | M 30-39 | 14:16:00 |
| 15 | 2022 | Peter Kline | M 20-29 | 14:24:00 |
| 16 | 2023 | Amanda Klebba | F 20-29 | 14:26:00 |
| 17 | 2018 | Eric Milan | M 30-39 | 14:30:00 |
| 18 | 2019 | Ashlee Ritson | F 30-39 | 14:31:00 |
| 19 | 2019 | Daniel Hickstein | M 30-39 | 14:36:00 |
| 20 | 2019 | Martin Swank | M 30-39 | 14:37:00 |
| 21 | 2018 | Ian McMeeking | M 20-29 | 15:16:00 |
| 22 | 2019 | Laura Johnson | F 30-39 | 15:17:00 |
| 23 | 2019 | Jordan Taylor | M 30-39 | 15:21:00 |
| 24 | 2022 | Nathan Shiver | M 40-49 | 15:23:00 |
| 25 | 2018 | Joshua Propfe | M 20-29 | 15:53:00 |
| 26 | 2023 | Thomas BRAHAM | M 40-49 | 15:57:00 |
| 27 | 2023 | Jake Lister | M 30-39 | 16:15:00 |
| 28 | 2021 | Hannah Alt | F 20-29 | 16:16:00 |
| 29 | 2020 | Dana Parker | F 50-59 | 16:21:00 |
| 30 | 2022 | Lizzy Rouce | F 20-29 | 16:29:00 |
| 31 | 2020 | Justyn Phinney | M 40-49 | 16:32:00 |
| 32 | 2018 | Joshua Andert | M 30-39 | 16:40:00 |
| 33 | 2020 | David Everson | M 30-39 | 16:42:00 |
| 34 | 2022 | Timothy Ashford | M 40-49 | 16:43:00 |
| 35 | 2020 | Roy Witty | M 30-39 | 16:51:00 |
| 36 | 2020 | Thomas Fowler | M 40-49 | 16:56:00 |
| 37 | 2020 | Nicole McGraw | F 20-29 | 16:56:00 |
| 38 | 2021 | Amanda Klebba | F 20-29 | 16:56:00 |
| 39 | 2023 | Dan Vaudt | M 40-49 | 16:59:00 |
| 40 | 2018 | Andrew Brooks | M 30-39 | 17:09:00 |
| 41 | 2022 | Peter Stanton | M 30-39 | 17:14:00 |
| 42 | 2020 | Eric Holle | M 30-39 | 17:20:00 |
| 43 | 2020 | Dominique Youngren | M 20-29 | 17:20:00 |
| 44 | 2020 | Mike Flood | M 30-39 | 17:21:00 |
| 45 | 2023 | David Murphy | M 30-39 | 17:27:00 |
| 46 | 2022 | Dan Vaudt | M 40-49 | 17:37:00 |
| 47 | 2019 | Colin Berry | M 50-59 | 17:46:00 |
| 48 | 2019 | Tarne Berry | F 40-49 | 17:46:00 |
| 49 | 2018 | Kirk Rupp | M 30-39 | 17:54:00 |
| 50 | 2020 | Ryan Law | M 40-49 | 18:02:00 |
| 51 | 2018 | Brittney Street | F 30-39 | 18:03:00 |
| 52 | 2021 | James Hayduk | M 30-39 | 18:12:00 |
| 53 | 2022 | Kristy Anne Peters | F 40-49 | 18:15:00 |
| 54 | 2020 | Tobin Warren | M 40-49 | 18:16:00 |
| 55 | 2023 | Preston Dennis | M 40-49 | 18:16:00 |
| 56 | 2020 | Jason Moore | M 40-49 | 18:18:00 |
| 57 | 2022 | Justyn Phinney | M 40-49 | 18:18:00 |
| 58 | 2022 | Melissa Reyes | F 40-49 | 18:18:00 |
| 59 | 2022 | Thomas Zoehrer | M 50-59 | 18:22:00 |
| 60 | 2021 | Noah Galloway | M 20-29 | 18:24:00 |
| 61 | 2018 | Stuart Cohen | M 30-39 | 18:25:00 |
| 62 | 2020 | LaMar Jost | M 40-49 | 18:26:00 |
| 63 | 2019 | Brandon Hurst | M 30-39 | 18:28:00 |
| 64 | 2022 | April Garland | F 40-49 | 18:36:00 |
| 65 | 2019 | Finlay Wood | M 30-39 | 18:38:00 |
| 66 | 2018 | LaMar Jost | M 40-49 | 19:02:00 |
| 67 | 2023 | Timothy Robinson | M 20-29 | 19:05:00 |
| 68 | 2022 | James McCants | M 20-29 | 19:15:00 |
| 69 | 2019 | Kevin Masten | M 50-59 | 19:23:00 |
| 70 | 2022 | Alexander Sell | M 30-39 | 19:24:00 |
| 71 | 2021 | Manihi Kontnik | F 30-39 | 19:26:00 |
| 72 | 2021 | Keith Cooper | M 30-39 | 19:31:00 |
| 73 | 2020 | Vic Aguilar | M 50-59 | 19:36:00 |
| 74 | 2019 | Laura Drake | F 30-39 | 19:38:00 |
| 75 | 2020 | Joshua Ritter | M 40-49 | 19:48:00 |
| 76 | 2019 | Phil Redinger | M 40-49 | 19:52:00 |
| 77 | 2023 | Megan Lawhon | U 30-39 | 19:57:00 |
| 78 | 2020 | Kent Ross | M 60-69 | 20:18:00 |
| 79 | 2018 | Matthew Fackrell | M 30-39 | 20:23:00 |
| 80 | 2020 | Kyle Swift | M 30-39 | 20:25:00 |
| 81 | 2018 | Michelle Whetherhult | F 40-49 | 20:27:00 |
| 82 | 2018 | Sam Simkin | M 40-49 | 20:34:00 |
| 83 | 2021 | Joshua Wiley | M 30-39 | 20:39:00 |
| 84 | 2022 | Michelle Wilfong-Oliphant | F 30-39 | 20:48:00 |
| 85 | 2022 | Jennifer Ruechel | F 30-39 | 20:51:00 |
| 86 | 2019 | Jesse Stoda | M 30-39 | 20:53:00 |
| 87 | 2019 | Kyle Herlache | M 30-39 | 20:54:00 |
| 88 | 2020 | Troy Eid | M 50-59 | 20:58:00 |
| 89 | 2018 | Gary Brozek | M 50-59 | 21:00:00 |
| 90 | 2023 | David Oyler | M 40-49 | 21:13:00 |
| 91 | 2023 | Jennifer Ruechel | F 40-49 | 21:14:00 |
| 92 | 2020 | Wei Teh | M 40-49 | 21:25:00 |
| 93 | 2020 | Tom Ralph | M 30-39 | 21:30:00 |
| 94 | 2023 | Garrett Roberts | M 20-29 | 21:32:00 |
| 95 | 2019 | Nick Kreitler | M 30-39 | 21:35:00 |
| 96 | 2020 | James McCants | M 20-29 | 21:40:00 |
| 97 | 2019 | Jason Seieroe | M 30-39 | 21:44:00 |
| 98 | 2020 | Jim Parker | M 50-59 | 21:58:00 |
| 99 | 2018 | Wanvipa Ruangpradit | F 40-49 | 21:59:00 |
| 100 | 2023 | Jonathan Engelstad | M 50-59 | 22:47:00 |
