Searched 17 events from July 25, 2015 to July 26, 2025
| Name | Gender | From | Finish Count |
|---|---|---|---|
| Jessica Bryzek | Female | Fairmont, WV | 1 |
| Dom Bubri | Male | Arvada, CO | 1 |
| Mark Buchanan | Male | Craig, CO | 1 |
| Amanda Buchholtz | Female | Denver, CO | 1 |
| Annika Buck Ahmed | Female | Fort Collins, CO | 2 |
| Emily Buckley | Female | Highlands Ranch, CO | 1 |
| Marc Buffington | Male | Fort Collins, CO | 3 |
| Austin Buhnerkemper | Male | Salt Lake City, UT | 1 |
| Thomas Bukowski | Male | San Francisco, CA | 1 |
| Aaron Buley | Male | Flower Mound, TX | 1 |
| Joanna Buley | Female | Flower Mound, TX | 1 |
| Jason Bulger | Male | Colorado SPGS, CO | 1 |
| Jason Bull | Male | Arvada, CO | 1 |
| Susan Bullard | Female | Dayton, WY | 1 |
| Jared Buller | Male | Denver, CO | 1 |
| Garrett Bundick | Male | Buena Vista, CO | 1 |
| Danny Bundrock | Male | Fort Collins, CO | 10 |
| Ryan Burch | Male | Loveland, CO | 3 |
| Scott Burd | Male | Boulder, CO | 1 |
| Jeff Burks | Male | Colorado Springs, CO | 1 |
| Joe Burleson | Male | Erie, CO | 1 |
| Travis Burleson | Male | Laporte, CO | 1 |
| Travis Burmaster | Male | Broomfield, CO | 1 |
| Jeremy Burmeister | Male | Greeley, CO | 1 |
| Geoffrey Burns | Male | Colorado Springs, CO | 1 |
| Kristy Burns | Female | Middlebury, VT | 1 |
| Liam Burns | Male | Denver, CO | 1 |
| Sara Burton | Female | Colorado Springs, CO | 1 |
| Justin Busch | Male | Golden, CO | 1 |
| Christie Buse | Female | Louisville, CO | 1 |
| Timothy Buse | Male | Boulder, CO | 1 |
| Stephen Bush | Male | Austin, TX | 1 |
| Jasper Bushman | Male | Bloomington, MN | 2 |
| Dan Busse | Male | Boulder, CO | 1 |
| Ben Butcher | Male | Williamsburg, VA | 1 |
| Brian Butcher | Male | Englewood, CO | 1 |
| Randy Butler | Male | Poncha Springs, CO | 1 |
| Zachary Butler | Male | Boise, ID | 1 |
| Stephen Byers | Male | Berthoud, CO | 2 |
| Casey Byrd | Male | Los Alamos, NM | 1 |
| Jorge Caardo | Male | Boulder, CO | 1 |
| Lisa Cabiles | Female | Richland, WA | 1 |
| Molly Cain | Female | Fort Collins, CO | 2 |
| Scott Callahan | Male | Colorado Springs, CO | 1 |
| Kendrick Callaway | Male | Boulder, CO | 1 |
| Jared Campanella | Male | Woodstock, GA | 1 |
| Iain Campbell | Male | Boulder, CO | 1 |
| Richard Cancellare | Male | Longmont, CO | 1 |
| Ethan Cantlin | Male | Manchester, NH | 1 |
| Liz Canty | Female | Huntsville, AL | 1 |