Jackson Gaynor has 2 recorded races from Mamaroneck, NY, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-04-25 | 2026 Rock 'n' Roll Nashville Half Marathon | Half Marathon | 2:21:23 | 4706 |
| 2025-04-26 | 2025 Rock 'n' Roll Nashville Half Marathon | Half Marathon | 2:07:23 | 3150 |