| Regionalliga West 2016/2017 - Appearances as Referee |  |
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| 16/09/2016 | Rot-Weiss Essen | - | SC Verl | 2:0 | 6 | - | - |
| 15/10/2016 | Bonner SC | - | TSG Sprockhövel | 0:2 | 5 | - | - |
| 03/03/2017 | Bor. Mönchengladbach II | - | Rot-Weiss Essen | 1:2 | 3 | - | - |
| Regionalliga West 2016/2017 - Appearances as Referee | |
|
|
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| 16/09/2016 | Rot-Weiss Essen | - | SC Verl | 2:0 | 6 | - | - |
| 15/10/2016 | Bonner SC | - | TSG Sprockhövel | 0:2 | 5 | - | - |
| 03/03/2017 | Bor. Mönchengladbach II | - | Rot-Weiss Essen | 1:2 | 3 | - | - |
| Complete name: | Thorben Siewer |
| Born: | 05/07/1987 |
| Place of birth: |
Germany |
| Residence: | Drolshagen |
| Nationality: |
Germany |
| Profession: | Controller |
| Club: | FC Schreibershof |