william nielsen has 2 recorded races from Granby, Colorado, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-08-21 | 2026 Lauf Gravel Worlds 150 Mile | Ultra Marathon | 8:43:40 | 74 |
| 2026-05-29 | 2026 Life Time UNBOUND Gravel Presented by Shimano 100 MILE | Ultra Marathon | 1:06:10 | 204 |