Searched 18 events from May 13, 2017 to May 10, 2025
| Name | Gender | From | Finish Count |
|---|---|---|---|
| Sydni Barnhart | Female | Timnath, CO | 1 |
| Tim Barr | Male | Arvada, CO | 2 |
| Lauren Barringer | Female | Louisville, CO | 1 |
| Andy Barth | Male | Wausau, WI | 1 |
| Ethan Bartle | Male | Denver, CO | 1 |
| Forrest Barton | Male | Snowmass, CO | 1 |
| Hannah Barton | Female | Boulder, CO | 1 |
| Stephen Barton | Male | Fort Collins, CO | 1 |
| Nicole Bartron | Female | Fort Collins, CO | 1 |
| Montana Bartschi | Male | Pocatello, ID | 1 |
| Bert Baumgaertner | Male | Moscow, ID | 1 |
| James Baumhover | Male | Cheyenne, WY | 4 |
| Sam Beal | Male | Estes Park, CO | 2 |
| Matt Beard | Male | Spokane, WA | 1 |
| Douglas Beattie | Nonbinary | Darien, IL | 1 |
| Heidi Beauchamp | Female | Lakewood, CO | 4 |
| David Beaudway | Male | Denver, CO | 1 |
| Jacob Bebo | Male | Berthoud, CO | 1 |
| Sarah Beck | Female | Fort Collins, CO | 3 |
| Jill Becker | Female | Lafayette, CO | 1 |
| Lindsey Beddard | Female | Longmont, CO | 1 |
| Eric Begay | Male | Gallup, NM | 1 |
| Lauren Bell | Female | Denver, CO | 1 |
| John Bender | Male | Fort Collins, CO | 1 |
| Blaine Benitez | Male | Salt Lake City, UT | 1 |
| Daniel Benitez | Male | Boulder, CO | 3 |
| Dean Bennett | Male | Fort Collins, CO | 1 |
| Karen Bennett | Female | Fort Collins, CO | 1 |
| Jenna Bensko | Female | Fort Collins, CO | 2 |
| Katie Benzel | Female | Colorado Springs, CO | 1 |
| Michael Bepristis | Male | Arvada, CO | 5 |
| Shelby Berg | Female | Colorado Springs, CO | 1 |
| Jim Berger | Male | Cedar Rapids, IA | 2 |
| Steve Berger | Male | Marion, IA | 1 |
| Diane Bergstedt | Female | Fort Collins, CO | 5 |
| Larkin Berry | Male | Boulder, CO | 1 |
| Kim Bessler | Female | Lakewood, CO | 1 |
| Harmonie Bettenhausen | Female | Fort Collins, CO | 2 |
| Lee Betty | Male | Broomfield, CO | 1 |
| Donald Beuke | Male | Broomfield, CO | 4 |
| Debbie Bibb | Female | Florissant, CO | 1 |
| Kenneth Biddison | Male | Aurora, CO | 1 |
| Jennifer Bieber | Female | Johnstown, CO | 2 |
| Ann Biegelsen | Female | Fort Collins, CO | 2 |
| Brock Bigard | Male | Erie, CO | 1 |
| Michael Bigelow | Male | Golden, CO | 1 |
| Sandra Biller | Female | Laramie, WY | 1 |
| James Bilodeau | Male | Loveland, CO | 1 |
| Heather Bilyeu | Female | Boulder, CO | 1 |
| Mary Bingham Chee | Female | Golden, CO | 2 |