Sylvia Parkinson has 4 recorded races.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| TCS London Marathon 2025 | Marathon | 3:13:30 | 5053 | |
| TCS London Marathon 2024 | Marathon | 3:28:32 | 9679 | |
| TCS London Marathon 2023 | Marathon | 3:18:11 | 5906 | |
| TCS London Marathon 2022 | Marathon | 3:15:45 | 3499 |