John Somerville has 5 recorded races.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| TCS London Marathon 2026 | Marathon | 3:14:44 | 5803 | |
| TCS London Marathon 2025 | Marathon | 3:29:47 | 8651 | |
| TCS London Marathon 2024 | Marathon | 3:46:39 | 15459 | |
| TCS London Marathon 2023 | Marathon | 3:47:33 | 13671 | |
| TCS London Marathon 2022 | Marathon | 3:56:10 | 11622 |