Sarah Nielson has 2 recorded races from O Fallon, Missouri, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-10-05 | MO' Cowbell Marathon/Half-Marathon/10K/5K Half Marathon | Half Marathon | 1:57:40 | 538 |
| 2024-10-06 | MO' Cowbell Marathon/Half-Marathon/10K/5K Half Marathon | Half Marathon | 1:58:07 | 540 |