Oscar Guy has 4 recorded races from GB.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2023-04-02 | Schneider Electric Marathon de Paris 2023 — Running 42.195km | Marathon | 2:57:47 | 1820 |
| TCS London Marathon 2026 | Marathon | 2:42:04 | 805 | |
| TCS London Marathon 2024 | Marathon | 2:50:52 | 1867 |