Nicholas Challis has 4 recorded races.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| TCS London Marathon 2026 | Marathon | 4:16:32 | 25743 | |
| TCS London Marathon 2026 | Marathon | 3:27:34 | 8949 | |
| TCS London Marathon 2025 | Marathon | 3:38:52 | 11082 | |
| TCS London Marathon 2024 | Marathon | 3:28:48 | 9787 |