Gary Witton has 5 recorded races.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| TCS London Marathon 2026 | Marathon | 2:57:16 | 2679 | |
| TCS London Marathon 2025 | Marathon | 3:05:28 | 3728 | |
| TCS London Marathon 2024 | Marathon | 2:54:48 | 2471 | |
| TCS London Marathon 2023 | Marathon | 2:53:10 | 1825 | |
| TCS London Marathon 2022 | Marathon | 2:58:11 | 1619 |