Alex Flack has 6 recorded races.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| TCS London Marathon 2026 | Marathon | 3:42:45 | 13726 | |
| BMW Berlin Marathon 2025 | Marathon | 4:01:03 | 4154 | |
| TCS London Marathon 2025 | Marathon | 3:49:04 | 14112 | |
| TCS London Marathon 2024 | Marathon | 3:39:26 | 13024 | |
| TCS London Marathon 2023 | Marathon | 3:28:29 | 8133 | |
| TCS London Marathon 2022 | Marathon | 3:39:27 | 7506 |