Graham Campbell has 3 recorded races from GB.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| 2024-04-07 | Schneider Electric Marathon de Paris 2024 — Marathon de Paris 2024 | Marathon | 3:44:13 | 15435 |
| TCS London Marathon 2026 | Marathon | 3:10:59 | 5085 | |
| TCS London Marathon 2025 | Marathon | 3:49:57 | 14398 |