| Regionalliga Nord 2005/2006 - Appearances as Referee |  |
 |
 |
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| 30/07/2005 | Rot-Weiß Erfurt | - | 1. FC Köln II | 4:3 | 3 | - | 1 |
| 09/09/2005 | VfL Osnabrück | - | FC Carl Zeiss Jena | 2:2 | 7 | 1 | - |
| 28/04/2006 | FC St. Pauli | - | SG Wattenscheid 09 | 2:1 | 1 | - | - |
| 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 |
