| Regionalliga Nord 2009/2010 - Appearances as Referee |  |
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 |
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| 26/09/2009 | Hannover 96 II | - | Hamburger SV II | 0:2 | 2 | - | - |
| 06/11/2009 | SV Wilhelmshaven | - | Hallescher FC | 0:2 | 4 | - | - |
| Regionalliga Nord 2009/2010 - Appearances as Referee | |
|
|
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| 26/09/2009 | Hannover 96 II | - | Hamburger SV II | 0:2 | 2 | - | - |
| 06/11/2009 | SV Wilhelmshaven | - | Hallescher FC | 0:2 | 4 | - | - |
| Complete name: | Thorben Siewer |
| Born: | 05/07/1987 |
| Place of birth: |
Germany |
| Residence: | Drolshagen |
| Nationality: |
Germany |
| Profession: | Controller |
| Club: | FC Schreibershof |