Niall Deasy has 4 recorded races.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| TCS London Marathon 2026 | Marathon | 3:12:44 | 5376 | |
| BMW Berlin Marathon 2025 | Marathon | 3:36:16 | 7810 | |
| TCS London Marathon 2025 | Marathon | 3:15:32 | 5495 | |
| TCS London Marathon 2024 | Marathon | 3:23:58 | 8289 |