Regan Costello has 2 recorded races from Nashville, TN, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-04-25 | 2026 Rock 'n' Roll Nashville Half Marathon | Half Marathon | 2:23:49 | 5062 |
| 2025-04-26 | 2025 Rock 'n' Roll Nashville Half Marathon | Half Marathon | 2:10:16 | 3610 |