Shannon Casey has 3 recorded races from Denver, CO.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-12-07 | California International Marathon | 3:11:32 | 2048 | |
| 2025-10-05 | Guthrie Wineglass Marathon, Wegmans Wineglass Half Marathon & Williams Toyota Wineglass 5K | 3:19:31 | 252 | |
| 2022-06-04 | 2021 REVEL Rockies Half Marathon | Half Marathon | 1:46:39 | 146 |