Searched 29 events from July 10, 1992 to July 12, 2024
| Name | Gender | From | Finish Count |
|---|---|---|---|
| Bozena Maslanka | Female | California | 2 |
| Mike Mason | Male | Charlotte, NC | 1 |
| Scott Mason | Male | Park City, UT | 1 |
| Neal Matosky | Male | Durango, CO | 1 |
| Clifford Matthews | Male | Albuquerque, NM | 1 |
| Andrew Matulionis | Male | Montana | 2 |
| Nathalie Mauclair | Female | Champagne, France | 1 |
| Grant Maughan | Male | Dudley, NSW, Australia | 1 |
| Karl Mayer | Male | Boulder, CO | 1 |
| Micheal McCarthy | Male | Oregon | 1 |
| Kirk McCarville | Male | Arizona | 2 |
| Paul McClintock | Male | United Kingdom | 1 |
| Sarah McCloskey | Female | Alta, UT | 2 |
| Steve McClung | Male | Durango, CO | 5 |
| Steve McCormick | Male | Colorado | 1 |
| Ryan Mcdermott | Male | Salt Lake City, UT | 5 |
| Mark McDermott | Male | Colorado | 2 |
| Mark C. McDermott | Male | United Kingdom | 1 |
| Ryan McDonald | Male | California | 1 |
| Elizabeth McGoff | Female | Montana | 1 |
| John McGrew | Male | Colorado | 3 |
| Douglas McInturff | Male | Colorado | 1 |
| Douglas McKeever | Male | Washington | 1 |
| Gavin McKenzie | Male | Leadville, CO | 2 |
| Scott McKenzie | Male | California | 1 |
| Justin McMillan | Male | Shell Beach, CA | 2 |
| Karl Meltzer | Male | Sandy, UT | 9 |
| Graham Melvin | Male | Bellingham, WA | 1 |
| Mark Melvin | Male | California | 3 |
| Joel Meredith | Male | Nashville, TN | 2 |
| Ryan Meulemans | Male | Signal Mountain, TN | 1 |
| Albert Meyer | Male | Connecticut | 4 |
| Daniel Meyers | Male | Mammoth, CA | 1 |
| Whitney Mickelsen | Female | Salt Lake City, UT | 1 |
| Joshua Mietz | Male | Durango, CO | 2 |
| Shad Mika | Male | Westminster, CO | 2 |
| Denis Mikhaylov | Male | New Jersey | 1 |
| Milan Milanovich | Male | Switzerland | 1 |
| David Miller | Male | Las Vegas, NV | 1 |
| Geoff Miller | Male | Colorado | 4 |
| James Miller | Male | Colorado | 2 |
| Marc Miller | Male | Wyoming | 1 |
| Martin Miller | Male | Helena, MT | 2 |
| Terry Miller | Male | Denver, CO | 1 |
| Jake Milligan | Male | Crystal Lake, IL | 1 |
| Scott Mills | Male | Oceanside, CA | 10 |
| Michael Mitchell | Male | Utah | 2 |
| Kimino Miyazaki | Female | Zushi, 14, Japan | 1 |
| Mikio Miyazoe | Male | Gujo-Hachiman, Japan | 1 |
| Krissy Moehl | Female | Bellingham, WA | 2 |