BOLDERBoulder Qualifiers
The BOLDERBoulder is open to everyone. Only the first 29 waves require qualification — meaning people in those waves need to provide proof of their running pace. To learn more about waves and qualifying click here.
Below is a list of Official BOLDERBoulder qualifying races. Results from these races can be used for your qualifying time for the 2025 BOLDERBoulder!
| Date | Race | City & State | Distance(s) |
| 2026 BB10K Qualifiers | |||
| 6/1/2025 | Steamboat Marathon, Half Marathon & 10K | Steamboat Springs | 10k, marathon, half marathon |
| 6/7/2025 | All-Out Summer Breeze | Arvada | 5k, 10k, half marathon |
| 6/15/2025 | Father’s Day Classic | Arvada | 5K, 10k, 1 mile |
| 6/21/2025 | Red, White, & Brew | Windsor | 5k, 10k, half marathon |
| 6/21/2025 | Unicorn North 5K | Thornton | 5k |
| 7/12/2025 | All-Out Dog Days | Westminster | 5k, 10k, half marathon |
| 7/19/2025 | Summer Splash Prairie Dog | Castle Rock | 5k, 10k, half marathon |
| 8/2/2025 | All-Out Runapalooza | Arvada | 5k, 10k, half marathon |
| 8/2/2025 | Unicorn 5k South | Highlands Ranch | 5k |
| 8/9/2025 | Holy Cow Trail Stampede | Westminster | 5k |
| 8/17/2025 | Erie Half | Erie Colorado | 5k, Half Marathon |
| 9/13/2025 | All-Out Fall Fest | Westminster | 5k, 10k, half marathon |
| 9/13/2025 | The Denver 5k | Denver | 5k |
| 9/27/2025 | Pioneer Prairie Dog Half, 10k/5k | Westminster | Half Marathon, 10k, 5k |
| 9/28/2025 | Boulderthon | Boulder | 5k, 10k, half marathon, marathon |
| 10/5/2025 | Windsor Marathon | Windsor | 5k, 10k, half marathon, marathon |
| 10/12/2025 | Westy Half and 5k | Westminster | Half Marathon and 5k |
| 10/12/2025 | The bRUNch Run | Denverlorado | 5k, 10k |
| 10/18/2025 | The Great Trailhead Foot Race | Lakewood | 5 Mile and 10 Mile |
| 10/25/2025 | Eerie Erie | Erie | 5k, 10k |
| 11/1/2025 | City Park 5k | Denver | 5k |
| 11/2/2025 | All-Out Kooky-Spooky | Golden | 5k, 10k, half marathon |
| 11/15/2025 | Pumpkin Pie 5K/10K | Denver | 5k, 10k |
| 11/22/2025 | Brighton Turkey Trot 5k | Brighton | 5k |
| 11/22/2025 | Turkey Trek & Turkey Trot | Arvada | 5k, 10k |
| 11/27/2025 | Mile High United Way Turkey Trot | Denver | 4 mile |
| 11/27/2025 | Broomfield Turkey Day 5k/10k | Broomfield | 5k, 10k |
| 11/27/2025 | Alpine Bank Boulder Thanksgiving Day 5K | Boulder | 5k |
| 12/6/2025 | ColderBOLDER | Boulder | 5k |
| 12/13/2025 | Winterfest | Thornton | 5k |
| 12/20/2025 | Santa’s Dash for Cash | Denver | 5k |
| 12/21/2025 | Ugly Sweater 5K | Denver | 5k |
| 1/1/2026 | Resolute Runner 5K | Arvada | 5k |
| 1/10/2026 | All-Out Polar Prowl | Arvada | 5k, 10k, half marathon |
| 1/18/2026 | Colorado Cold Rush | Louisville | 5k, 10k |
| 2/1/2026 | Old Man Winter Rally | Lyons | 5k, 10k |
| 2/14/2026 | Heart Throb 5k | Arvada | 5k |
| 2/22/2026 | Highlands Ranch 5K | Highlands Ranch | 5k |
| 2/22/2026 | All-Out Mardi Crawl | Arvada | 5k, 10k, half marathon |
| 3/14/2026 | Erin go Bragh | Westminster | 7.77k |
| 3/22/2026 | Central Park 5K | Denver | 5k |
| 3/22/2026 | All-Out Spring Fever | Golden | 5k, 10k, half marathon |
| 4/12/2026 | Donut Dash 5K | Denver | 5k |
| 4/12/2026 | Spring Fling Prairie Dog | Arvada | 5K, 10K, half marathon |
| 4/18/2026 | All-Out Beat the Heat | Westminster | 5k, 10k, half marathon |
