| 2. Bundesliga 2018/2019 - Appearances as Assistant | ||||
| 12/08/2018 | Holstein Kiel | - | 1. FC Heidenheim 1846 | 1:1 |
| 2. Bundesliga 2018/2019 - Appearances as Assistant | ||||
| 12/08/2018 | Holstein Kiel | - | 1. FC Heidenheim 1846 | 1:1 |
| Complete name: | Thorben Siewer |
| Born: | 05/07/1987 |
| Place of birth: |
Germany |
| Residence: | Drolshagen |
| Nationality: |
Germany |
| Profession: | Controller |
| Club: | FC Schreibershof |