| Regionalliga Süd (1994-2012) 2005/2006 - Appearances as Referee |  |
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| 15/10/2005 | SV Darmstadt 98 | - | SV 07 Elversberg | 1:1 | 2 | 1 | - |
| 11/11/2005 | Eintracht Trier | - | VfR Aalen | 3:2 | 6 | - | - |
| 06/05/2006 | FC Augsburg | - | TuS Koblenz | 0:1 | 2 | - | - |
| Regionalliga Süd (1994-2012) 2005/2006 - Appearances as Referee | |
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| 15/10/2005 | SV Darmstadt 98 | - | SV 07 Elversberg | 1:1 | 2 | 1 | - |
| 11/11/2005 | Eintracht Trier | - | VfR Aalen | 3:2 | 6 | - | - |
| 06/05/2006 | FC Augsburg | - | TuS Koblenz | 0:1 | 2 | - | - |
| 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 |