Mark Harrison has 5 recorded races from Breckenridge, CO.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2024-10-12 | Breckenridge Road Marathon 10K | 10K | 1:19:30 | 144 |
| 2023-03-17 | 2023 Yuengling Shamrock Marathon Weekend Townebank 8K | 41:11 | 396 | |
| 2022-12-16 | 2022 Surf N Santa 5 Miler | 43:33 | 347 | |
| TCS London Marathon 2024 | Marathon | 2:41:43 | 889 | |
| TCS London Marathon 2022 | Marathon | 3:30:09 | 5772 |