Billy Cornish has 4 recorded races.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| TCS London Marathon 2026 | Marathon | 5:20:30 | 45284 | |
| TCS London Marathon 2025 | Marathon | 5:33:50 | 44819 | |
| TCS London Marathon 2023 | Marathon | 4:38:55 | 29757 | |
| TCS London Marathon 2022 | Marathon | 4:15:00 | 16376 |