| DFB-Pokal 2019/2020 - Appearances as Assistant | ||||
| 29/10/2019 | MSV Duisburg | - | 1899 Hoffenheim | 0:2 |
| 05/02/2020 | 1. FC Saarbrücken | - | Karlsruher SC | 5:3 pso |
| DFB-Pokal 2019/2020 - Appearances as Assistant | ||||
| 29/10/2019 | MSV Duisburg | - | 1899 Hoffenheim | 0:2 |
| 05/02/2020 | 1. FC Saarbrücken | - | Karlsruher SC | 5:3 pso |
| Complete name: | Thorben Siewer |
| Born: | 05/07/1987 |
| Place of birth: |
Germany |
| Residence: | Drolshagen |
| Nationality: |
Germany |
| Profession: | Controller |
| Club: | FC Schreibershof |