John Neff has 3 recorded races from DAVIDSONVILLE, MD, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-03-21 | 2026 Rock 'n' Roll Washington DC Half Marathon | Half Marathon | 2:25:12 | 7937 |
| 2025-03-15 | 2025 Rock 'n' Roll Washington DC Half Marathon | Half Marathon | 2:21:13 | 7882 |
| 2022-03-26 | 2022 Rock 'n' Roll DC Half Marathon | Half Marathon | 2:14:11 | 4112 |