| Relegation Bundesliga 2017/2018 - Appearances as Assistant | ||||
| 21/05/2018 | Holstein Kiel | - | VfL Wolfsburg | 0:1 |
| Relegation Bundesliga 2017/2018 - Appearances as Assistant | ||||
| 21/05/2018 | Holstein Kiel | - | VfL Wolfsburg | 0:1 |
| Complete name: | Lasse Koslowski |
| Born: | 14/07/1987 |
| Place of birth: |
Berlin, 
Germany |
| Residence: | Berlin |
| Nationality: |
Germany |
| Profession: | selbständig |
| Club: | Frohnauer SC |