Siobhan Chambers has 3 recorded races from Chevy Chase, MD, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2025-03-15 | 2025 Rock 'n' Roll Washington DC Half Marathon | Half Marathon | 2:00:15 | 4210 |
| 2024-03-16 | 2024 Rock 'n' Roll Washington DC Half Marathon | Half Marathon | 1:58:02 | 3824 |
| 2022-03-26 | 2022 Rock 'n' Roll DC Half Marathon | Half Marathon | 1:46:24 | 1073 |