Janusz Lenc has 4 recorded races.
| Date | Race | Distance | Time | Overall |
|---|---|---|---|---|
| BMW Berlin Marathon 2025 | Marathon | 7:49:29 | 31067 | |
| BMW Berlin Marathon 2024 | Marathon | 6:52:08 | 35448 | |
| BMW Berlin Marathon 2023 | Marathon | 7:28:47 | 28601 | |
| BMW Berlin Marathon 2022 | Marathon | 6:46:25 | 23202 |