| Youth Championship 2006/2007 - Appearances as Referee |  |
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| 17/06/2007 | Bayern München | - | Werder Bremen | 4:2 | 5 | - | - |
| Youth Championship 2006/2007 - Appearances as Referee | |
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| 17/06/2007 | Bayern München | - | Werder Bremen | 4:2 | 5 | - | - |
| Complete name: | Guido Winkmann |
| Born: | 27/11/1973 |
| Place of birth: |
Germany |
| Residence: | Kerken |
| Nationality: |
Germany |
| Profession: | Polizeibeamter |
| Club: | SV Nütterden |
| Height: | 180 cm |
| Weight: | 71 kg |
| Bundesliga (GER) appearances: | 161 |