Rob Seward has 4 recorded races.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| TCS London Marathon 2026 | Marathon | 5:07:04 | 41984 | |
| BMW Berlin Marathon 2024 | Marathon | 5:18:54 | 32620 | |
| TCS London Marathon 2023 | Marathon | 5:11:15 | 37931 | |
| TCS London Marathon 2022 | Marathon | 4:52:40 | 25687 |