Sydney Hayter has 2 recorded races from Boulder, CO.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-04-13 | Schneider Electric Marathon de Paris 2025 — Schneider Electric Marathon de Paris | Marathon | 4:19:14 | 33216 |
| 2024-09-29 | Boulderthon Marathon | Marathon | 4:34:43 | 588 |