| DFB-Pokal 2013/2014 - Appearances as Assistant | ||||
| 03/12/2013 | Hamburger SV | - | 1. FC Köln | 2:1 |
| 17/05/2014 | Borussia Dortmund | - | Bayern München | 0:2 aet |
| DFB-Pokal 2013/2014 - Appearances as Assistant | ||||
| 03/12/2013 | Hamburger SV | - | 1. FC Köln | 2:1 |
| 17/05/2014 | Borussia Dortmund | - | Bayern München | 0:2 aet |
| 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: | 88 |