Piers Vallance has 4 recorded races.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| TCS London Marathon 2026 | Marathon | 2:52:42 | 1939 | |
| TCS London Marathon 2025 | Marathon | 2:41:33 | 747 | |
| TCS London Marathon 2024 | Marathon | 2:41:36 | 879 | |
| TCS London Marathon 2023 | Marathon | 2:41:25 | 686 |