Gerrit Grewe has 4 recorded races.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| BMW Berlin Marathon 2025 | Marathon | 4:50:36 | 23297 | |
| BMW Berlin Marathon 2024 | Marathon | 3:56:46 | 18948 | |
| BMW Berlin Marathon 2023 | Marathon | 4:26:29 | 20496 | |
| BMW Berlin Marathon 2022 | Marathon | 3:55:37 | 11385 |