Searched 18 events from May 13, 2017 to May 10, 2025
| Name | Gender | From | Finish Count |
|---|---|---|---|
| Perry Rodenbeck | Male | Fort Collins, CO | 2 |
| Laren Roderick | Male | Rapid City, SD | 2 |
| Daniel Rodgers | Male | Spearfish, SD | 1 |
| Derrill Rodgers | Male | Littleton, CO | 1 |
| Hank Rodis | Male | Denver, CO | 1 |
| Paul Rodriguez | Male | Denver, CO | 1 |
| Jennifer Roebuck | Female | Fort Collins, CO | 1 |
| Secca Roettenbacher | Female | Eagle, CO | 1 |
| Keegan Rogers | Male | Gillette, WY | 1 |
| Christopher Rom | Male | Fort Collins, CO | 3 |
| Henry Romano Weller | Male | Fort Collins, CO | 1 |
| Julia Romero | Female | Boulder, CO | 1 |
| Lindsay Romero | Female | Lafayette, CO | 1 |
| Alexa Roop | Female | Parker, CO | 1 |
| Michel Roos | Male | Oranjestad, ABW, Aruba | 1 |
| Chris Root | Male | Denver, CO | 1 |
| Sheri Rosa | Female | Thornton, CO | 1 |
| Kate Rose | Female | Arvada, CO | 1 |
| Sarah Rose | Female | Fort Collins, CO | 1 |
| Carson Ross | Male | Rio Rancho, NM | 1 |
| Jordon Ross | Female | Glenwood Springs, CO | 1 |
| Nicole Ross | Female | Castle Rock, CO | 2 |
| Stephen Ross | Male | Cheyenne, WY | 1 |
| William Ross | Male | Boulder, CO | 1 |
| Raoul Rossiter | Male | Broomfield, CO | 2 |
| Jaime Roth | Female | Boulder, CO | 1 |
| Marcia Roth | Female | Springfield, OH | 1 |
| Zachary Roth | Male | Boulder, CO | 1 |
| Sarah Roueche | Female | Manitou Springs, CO | 1 |
| Darlene Rouleau | Female | Fort Collins, CO | 1 |
| Courtney Rouse | Female | San Antonio, TX | 1 |
| Wayne Rousseau | Male | Erie, CO | 1 |
| Wayne Routten | Male | Boulder, CO | 1 |
| Catharine Rozema | Female | Colorado Springs, CO | 1 |
| Chris Rozoff | Male | Broomfield, CO | 2 |
| Jason Rubek | Male | Fort Collins, CO | 2 |
| Frederico Rubinato' | Male | Rio De Janeiro, Brazil | 2 |
| Scott Rubinstein | Male | Littleton, CO | 2 |
| Johannes Rudolph | Male | Boulder, CO | 1 |
| Matthew Ruggles | Male | Fort Collins, CO | 1 |
| Seth Ruhling | Male | Longmont, CO | 1 |
| Andrew Ruiz | Male | Marion, NC | 1 |
| Katie Ruiz | Female | Boulder, CO | 1 |
| Ritzy Running | Female | Estes Park, CO | 1 |
| Tracie Rupert | Female | Erie, CO | 2 |
| Ryan Rushing | Male | Fort Collins, CO | 1 |
| Alana Russell | Female | Boulder, CO | 1 |
| Johnny Russell | Male | Denver, CO | 1 |
| Steven Russell | Male | Windsor, CO | 1 |
| Zachary Russell | Male | Breckenridge, CO | 1 |