| Regionalliga West 2019/2020 - Appearances as Referee |  |
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 |
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| 04/10/2019 | SC Verl | - | Sportfreunde Lotte | 1:1 | 5 | - | - |
| 25/01/2020 | Rot-Weiß Oberhausen | - | Bor. Mönchengladbach II | 3:0 | 6 | - | 1 |
| Regionalliga West 2019/2020 - Appearances as Referee | |
|
|
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| 04/10/2019 | SC Verl | - | Sportfreunde Lotte | 1:1 | 5 | - | - |
| 25/01/2020 | Rot-Weiß Oberhausen | - | Bor. Mönchengladbach II | 3:0 | 6 | - | 1 |
| Complete name: | Thorben Siewer |
| Born: | 05/07/1987 |
| Place of birth: |
Germany |
| Residence: | Drolshagen |
| Nationality: |
Germany |
| Profession: | Controller |
| Club: | FC Schreibershof |