Jan Wiemer has 4 recorded races.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| BMW Berlin Marathon 2025 | Marathon | 4:02:34 | 14013 | |
| BMW Berlin Marathon 2024 | Marathon | 4:55:48 | 30461 | |
| BMW Berlin Marathon 2023 | Marathon | 3:41:40 | 10905 | |
| BMW Berlin Marathon 2023 | Marathon | 4:44:47 | 22998 |