Sion Lewis has 4 recorded races from GB.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2026-04-12 | Schneider Electric Marathon de Paris 2026 — Marathon de Paris | Marathon | 3:55:31 | 21508 |
| TCS London Marathon 2026 | Marathon | 2:30:29 | 224 | |
| BMW Berlin Marathon 2023 | Marathon | 2:33:00 | 307 | |
| TCS London Marathon 2022 | Marathon | 2:34:20 | 142 |