Searched 6 events from August 28, 2021 to August 26, 2023
| Name | Gender | From | Finish Count |
|---|---|---|---|
| Becca Rolph | Female | Golden, CO | 1 |
| Gerald Romero | Male | Colorado Springs, CO | 1 |
| Rose Rosato | Female | Golden, CO | 1 |
| Aaron Rose | Male | Arvada, CO | 1 |
| Kate Rose | Female | Arvada, CO | 1 |
| Joe Rosetta | Male | Aurora, CO | 1 |
| Cory Roughton | Male | Littleton, CO | 2 |
| Erin Rubenking | Female | Arvada, CO | 1 |
| Maggie Ruddy | Female | Golden, CO | 1 |
| Ed Sadler | Male | Denver, CO | 1 |
| Mark Salama | Male | Denver, CO | 1 |
| Aubrey Samuelson | Female | Louisville, CO | 1 |
| Carly Sanders | Female | Fort Collins, CO | 2 |
| Mathew Sanders | Male | Highlands Ranch, CO | 1 |
| Anne Sarsen | Female | Denver, CO | 1 |
| Kevin Sarsen | Male | Denver, CO | 1 |
| Briton Schiewe | Male | Florissant, CO | 1 |
| Dan Schlatter | Male | Boulder, CO | 1 |
| Max Schmid | Male | Pine, CO | 1 |
| Elizabeth Schmidt | Female | Golden, CO | 1 |
| Sarah Schmitke | Female | Libertyville, IL | 1 |
| Matt Scholbrock | Male | Firestone, CO | 1 |
| Scott Schrader | Male | Littleton, CO | 1 |
| Joost Schreve | Male | Boulder, CO | 2 |
| Mark Schwandt | Male | Thornton, CO | 1 |
| John Scott | Male | Louisville, CO | 1 |
| Rick Scott | Male | Castle Rock, CO | 1 |
| Will Scott | Male | London, United Kingdom | 1 |
| Jennifer Seals | Female | Eaton, CO | 1 |
| Beth Sedelmyer | Female | Colorado Springs, CO | 1 |
| Samantha Sellke | Female | Evergreen, CO | 1 |
| Lara Seng | Female | Colorado Springs, CO | 1 |
| Bryan Serafini | Male | Denver, CO | 1 |
| Verenea Serrano | Female | Denver, CO | 1 |
| Nick Sevcik | Male | Centennial, CO | 1 |
| Julie Seydel | Female | Louisville, CO | 1 |
| Maggie Shafer | Female | Fort Collins, CO | 2 |
| Julia Shanahan | Female | Parker, CO | 1 |
| Jesse Shao | Male | United States | 1 |
| Melissa Sharp | Female | Golden, CO | 1 |
| Dan Shaw | Male | Denver, CO | 2 |
| Samantha Shelafo | Female | Gunnison, CO | 1 |
| Eric Sheldrake | Male | Lakewood, CO | 1 |
| Elizabeth Shell | Female | Dover, NH | 1 |
| Kayleigh Shinn | Female | Littleton, CO | 1 |
| Dheeraj Shrivastava | Male | Hollywood, FL | 1 |
| Sarah Shriver | Female | Conifer, CO | 2 |
| Louis Shuba | Male | Centennial, CO | 1 |
| Patrick Shyvers | Male | Fort Collins, CO | 1 |
| Mila Sicorsky | Female | Boulder, CO | 1 |