Alejandro Serafin has 2 recorded races from La Jolla, CA, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-05-31 | 2026 Rock 'n' Roll San Diego Half Marathon | Half Marathon | 2:44:32 | 13520 |
| 2025-06-01 | 2025 Rock 'n' Roll San Diego Half Marathon | Half Marathon | 2:50:01 | 13729 |