Barbara Costa has 5 recorded races.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| TCS London Marathon 2026 | Marathon | 5:58:01 | 52545 | |
| TCS London Marathon 2025 | Marathon | 5:45:12 | 46973 | |
| TCS London Marathon 2024 | Marathon | 5:46:24 | 47233 | |
| TCS London Marathon 2023 | Marathon | 6:04:51 | 45418 | |
| TCS London Marathon 2022 | Marathon | 6:14:07 | 37790 |