Searched 8 events from August 28, 2021 to August 23, 2025
| Name | Gender | From | Finish Count |
|---|---|---|---|
| Shelby Marks | Female | Golden, CO | 1 |
| Zachary Marks | Male | Littleton, CO | 1 |
| Kristina Martin | Female | Lafayette, CO | 1 |
| Nk Martin | Male | Erie, CO | 1 |
| Peter Martin | Male | Boulder, CO | 1 |
| Anna Martinez | Female | Littleton, CO | 3 |
| Eric Martinez | Male | Littleton, CO | 2 |
| Brook Marvin | Female | Crestone, CO | 1 |
| Jordan Masanoff | Male | Denver, CO | 1 |
| Michael Maselli | Male | Golden, CO | 1 |
| Edwin Massey | Male | Denver, CO | 1 |
| Margaret Matern | Female | Seattle, WA | 1 |
| Cameron Mathews | Male | Highlands Ranch, CO | 1 |
| Shane Mathias | Male | Ogden, UT | 1 |
| Sarah Maurer | Female | Denver, CO | 1 |
| Jo May | Female | Houston, TX | 1 |
| Howard Mayson | Male | Breckenridge, CO | 1 |
| Julie McAlexander | Female | Peyton, CO | 2 |
| Logan McAllister | Male | Rosemount, MN | 1 |
| Kelli McCarthy | Female | Littleton, CO | 1 |
| Blake McCarty | Male | Loveland, CO | 1 |
| Colten McCormick | Male | Lakewood, CO | 2 |
| Adam McCoy | Male | Castle Rock, CO | 1 |
| Jim McCue | Male | Denver, CO | 1 |
| Emily Mccullough | Female | Denver, CO | 2 |
| Beth McDowell | Female | Colorado Springs, CO | 1 |
| Tara McFarlin | Female | Castle Rock, CO | 1 |
| John McHugh | Male | Boulder, CO | 1 |
| Catherine McIntosh | Female | Conifer, CO | 1 |
| James McKenzie | Male | Lakewood, CO | 1 |
| Jenny McKenzie | Female | Boulder, CO | 1 |
| James McMullin | Male | Littleton, CO | 2 |
| Kevin McNamee | Male | Bailey, CO | 2 |
| Justin McNeill | Male | Highlands Ranch, CO | 1 |
| Timothy Medearis | Male | Longmont, CO | 1 |
| Michael Medvig | Male | Parker, CO | 1 |
| Kyra Mehaffey | Female | Bailey, CO | 1 |
| Ryan Mehaffey | Male | Bailey, CO | 2 |
| Kelton Meinecke | Male | Littleton, CO | 1 |
| Rachel Meissner | Female | Gunnison, CO | 1 |
| Scott Merkley | Male | Centennial, CO | 1 |
| Bill Mestrezat | Male | Lakewood, CO | 1 |
| Jesse Mestrovic | Male | Denver, CO | 1 |
| Bryan Meyer | Male | Lakewood, CO | 1 |
| RJ Miccio | Male | Arvada, CO | 1 |
| Debra Mierzwa | Female | Parker, CO | 1 |
| Shad Mika | Male | Westminster, CO | 1 |
| Denise Milano | Female | Folsom, CA | 1 |
| Lucas Mile | Male | Boulder, CO | 1 |
| Tiana Mile | Female | Boulder, CO | 1 |