Mark Grieves has 5 recorded races.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| TCS London Marathon 2026 | Marathon | 3:49:22 | 16090 | |
| TCS London Marathon 2025 | Marathon | 3:49:08 | 14126 | |
| TCS London Marathon 2024 | Marathon | 4:14:12 | 25335 | |
| TCS London Marathon 2023 | Marathon | 3:45:31 | 13026 | |
| TCS London Marathon 2022 | Marathon | 4:25:08 | 18903 |