Mark O'Gara has 5 recorded races.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| TCS London Marathon 2026 | Marathon | 3:37:07 | 11914 | |
| TCS London Marathon 2025 | Marathon | 3:15:20 | 5451 | |
| TCS London Marathon 2024 | Marathon | 3:07:09 | 4736 | |
| TCS London Marathon 2023 | Marathon | 3:12:19 | 4800 | |
| TCS London Marathon 2022 | Marathon | 2:58:40 | 1700 |