W. Cosper has 3 recorded races from Belvedere Tiburon, CA, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2024-10-09 | Del Mar students 1 Mile Color Run | 1 Mile | 05:55 | 8 |
| 2023-10-11 | Bel Aire students 1 Mile | 1 Mile | 06:19 | 3 |
| 2022-10-12 | Bel Aire students 1 Mile | 1 Mile | 06:23 | 3 |