| DFB-Pokal 2022/2023 - Appearances as Assistant | ||||
| 30/07/2022 | Jahn Regensburg | - | 1. FC Köln | 4:3 pso |
| 30/08/2022 | FC Teutonia 05 | - | RB Leipzig | 0:8 |
| 18/10/2022 | RB Leipzig | - | Hamburger SV | 4:0 |
| 04/04/2023 | Bayern München | - | SC Freiburg | 1:2 |
| DFB-Pokal 2022/2023 - Appearances as Assistant | ||||
| 30/07/2022 | Jahn Regensburg | - | 1. FC Köln | 4:3 pso |
| 30/08/2022 | FC Teutonia 05 | - | RB Leipzig | 0:8 |
| 18/10/2022 | RB Leipzig | - | Hamburger SV | 4:0 |
| 04/04/2023 | Bayern München | - | SC Freiburg | 1:2 |
| Complete name: | Thorben Siewer |
| Born: | 05/07/1987 |
| Place of birth: |
Germany |
| Residence: | Drolshagen |
| Nationality: |
Germany |
| Profession: | Controller |
| Club: | FC Schreibershof |