William Lonsdale has 6 recorded races.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| TCS London Marathon 2026 | Marathon | 4:48:14 | 36444 | |
| TCS London Marathon 2025 | Marathon | 5:23:10 | 42447 | |
| TCS London Marathon 2024 | Marathon | 4:26:44 | 29254 | |
| TCS London Marathon 2023 | Marathon | 4:22:31 | 24980 | |
| TCS London Marathon 2022 | Marathon | 4:56:38 | 26655 | |
| BMW Berlin Marathon 2023 | Marathon | 5:08:33 | 25411 |