Isabella Williamson has 2 recorded races from Oakton, Virginia, US.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-04-12 | Schneider Electric Marathon de Paris 2026 — Marathon de Paris | Marathon | 5:34:25 | 54398 |
| 2022-03-19 | 2022 Yuengling Shamrock Marathon Weekend Townebank 8K | 45:35 | 925 |