Lucinda Southworth has 2 recorded races from Miami, Florida, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-01-25 | Life Time Miami Marathon & Half presented by FP Movement Half Marathon | Half Marathon | 2:05:27 | 4365 |
| 2023-12-02 | Los Angeles Spartan Event Weekend - Sprint Sprint Open | 1:21:55 | 561 |