| 3. Liga 2008/2009 - Appearances as Referee |  |
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 |
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| 16/08/2008 | Wacker Burghausen | - | Fortuna Düsseldorf | 0:4 | 2 | - | - |
| 14/11/2008 | 1. FC Union Berlin | - | SV Sandhausen | 2:2 | 3 | - | - |
| 3. Liga 2008/2009 - Appearances as Referee | |
|
|
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| 16/08/2008 | Wacker Burghausen | - | Fortuna Düsseldorf | 0:4 | 2 | - | - |
| 14/11/2008 | 1. FC Union Berlin | - | SV Sandhausen | 2:2 | 3 | - | - |
| Complete name: | Frank Willenborg |
| Born: | 10/02/1979 |
| Place of birth: |
Germany |
| Residence: | Osnabrück |
| Nationality: |
Germany |
| Profession: | Realschullehrer |
| Club: | SV Gehlenberg |
| Height: | 188 cm |
| Weight: | 82 kg |
| Bundesliga (GER) appearances: | 100 |