Searched 13 events from July 25, 2015 to July 29, 2023
| Name | Gender | From | Finish Count |
|---|---|---|---|
| Travis Bilou | Male | Edmonton, AB | 1 |
| James Bird | Male | Kansas City, MO | 1 |
| Garrett Bischof | Male | Fort Collins, CO | 1 |
| David Bisenius | Male | Boulder, CO | 1 |
| Jeff Black | Male | Boise, ID | 1 |
| Scott Black | Male | Lexington, KY | 1 |
| Chris Blackwell | Male | Breckenridge, CO | 1 |
| Conan Blakemore | Male | Conifer, CO | 3 |
| Dan Blankenship | Male | Loveland, CO | 1 |
| Jon Blankenship | Male | Columbia Falls, MT | 1 |
| Tommy Blanton | Male | Lincoln, NE | 1 |
| Andy Blatecky | Male | Golden, CO | 3 |
| Philip Blechertas | Male | Oceanside, CA | 1 |
| Louis Bodin | Male | Boulder, CO | 2 |
| Taylor Bodin | Male | Estes Park, CO | 2 |
| David Boersma | Male | Wheat Ridge, CO | 1 |
| Damjan Bogdanovic | Male | Boulder, CO | 1 |
| Dustin Boggs | Male | Fort Collins, CO | 1 |
| Jesse Boisaubin | Male | Milwaukie, OR | 1 |
| Griffin Bojan | Male | Seattle, WA | 1 |
| Daniel Bondy | Male | Short Hills, NJ | 1 |
| David Born | Male | Fort Collins, CO | 1 |
| Justin Bourn | Male | Denver, CO | 1 |
| Joshua Bowen | Male | Fort Carson, CO | 1 |
| David Boyd | Male | Fort Collins, CO | 1 |
| Brian Boyes | Male | Fort Collins, CO | 2 |
| Bryan Boyle | Male | Gunnison, CO | 1 |
| Chris Boyle | Male | Osage Beach, MO | 1 |
| Bert Braden | Male | Santa Rosa, CA | 1 |
| Jeremy Bradford | Male | Denver, CO | 2 |
| William Bradley | Male | Loveland, CO | 1 |
| Colin Brady | Male | Grand Junction, CO | 1 |
| Greg Braeger | Male | Colorado Springs, CO | 1 |
| Alan Brammer | Male | Fort Collins, CO | 1 |
| Alexandre Branco | Male | Rio de Janeiro, BRA | 1 |
| Derek Brandt | Male | St Paul, MN | 1 |
| Derek Brandt | Male | Lincoln, NE | 1 |
| David Braun | Male | Denver, CO | 1 |
| Andy Brazelton | Male | Fort Collins, CO | 1 |
| Jack Breezley | Male | Gunnison, CO | 1 |
| Josh Breffle | Male | Windsor, CO | 1 |
| Steve Bremner | Male | Manitou Springs, CO | 1 |
| Peter Brennen | Male | Denver, CO | 2 |
| Chuck Brenton | Male | Bellvue, CO | 1 |
| Ben Breslin | Male | Denver, CO | 1 |
| Corey Bright | Male | Springfield, MO | 1 |
| Ian Broden | Male | Clark, CO | 1 |
| Andrew Brodsky | Male | Longmont, CO | 1 |
| Peter Bronski | Male | Longmont, CO | 1 |
| Nikolaj Brons-Piche | Male | Bozeman, MT | 1 |