Detlef Blässe has 5 recorded races.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| BMW Berlin Marathon 2025 | Marathon | 5:12:04 | 26148 | |
| BMW Berlin Marathon 2024 | Marathon | 4:14:27 | 23526 | |
| TCS London Marathon 2022 | Marathon | 4:44:13 | 23609 | |
| BMW Berlin Marathon 2023 | Marathon | 4:14:39 | 18464 | |
| BMW Berlin Marathon 2022 | Marathon | 4:28:44 | 16904 |