Leslie Hefferon has 4 recorded races from Saint Charles, Missouri, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-10-05 | MO' Cowbell Marathon/Half-Marathon/10K/5K | 5K | 36:16 | 297 |
| 2024-10-06 | MO' Cowbell Marathon/Half-Marathon/10K/5K | 5K | 34:17 | 233 |
| 2023-10-01 | MO' Cowbell Marathon/Half-Marathon/10K/5K | 5K | 30:14 | 90 |
| 2022-10-02 | MO' Cowbell Marathon/Half-Marathon/10K/5K | 5K | 37:41 | 269 |