| 3. Liga 2011/2012 - Appearances as Referee |  |
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 |
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| 24/09/2011 | Wacker Burghausen | - | Jahn Regensburg | 1:1 | 8 | - | - |
| 07/02/2012 | VfR Aalen | - | SV Sandhausen | 2:0 | 1 | - | - |
| 27/03/2012 | Preußen Münster | - | FC Carl Zeiss Jena | 1:0 | 4 | - | - |
| 15/04/2012 | Kickers Offenbach | - | Rot-Weiß Erfurt | 2:0 | 5 | - | - |
| 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: | 92 |
