John Gvazdinskas has 3 recorded races from Boulder, CO.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-09-28 | Boulderthon Marathon | Marathon | 3:32:46 | 177 |
| 2024-09-29 | Boulderthon Marathon | Marathon | 3:43:49 | 127 |
| 2023-10-08 | Boulderthon Half Marathon | Half Marathon | 1:43:43 | 330 |