Brittany Runyan has 4 recorded races from Boulder, CO.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-03-21 | 2026 Yuengling Shamrock Marathon Weekend Half Marathon | Half Marathon | 2:06:14 | 1979 |
| 2026-03-21 | 2026 Yuengling Shamrock Marathon Weekend 8K | 38:11 | 260 | |
| 2025-09-28 | Boulderthon Half Marathon | Half Marathon | 2:09:49 | 2515 |
| 2024-09-29 | Boulderthon Half Marathon | Half Marathon | 2:18:35 | 2222 |