| 3. Liga 2020/2021 - Appearances as Referee |  |
 |
 |
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| 24/11/2020 | SC Verl | - | TSV 1860 München | 1:1 | 4 | - | - |
| 16/05/2021 | TSV 1860 München | - | Bayern München II | 2:2 | 6 | - | - |
| 3. Liga 2020/2021 - Appearances as Referee | |
|
|
||||
| 24/11/2020 | SC Verl | - | TSV 1860 München | 1:1 | 4 | - | - |
| 16/05/2021 | TSV 1860 München | - | Bayern München II | 2:2 | 6 | - | - |
| 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 |