Nancy Niemann has 2 recorded races from Castle Rock, CO, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-03-21 | 2026 Rock 'n' Roll Washington DC Half Marathon | Half Marathon | 2:02:00 | 4033 |
| 2025-03-15 | 2025 Rock 'n' Roll Washington DC Half Marathon | Half Marathon | 1:55:26 | 3139 |