| Youth B Bundesliga West 2007/2008 - Appearances as Referee |  |
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| 01/09/2007 | FC Schalke 04 | - | Borussia Dortmund | 2:5 | - | - | - |
| 27/02/2008 | FC Schalke 04 | - | Rot-Weiss Essen | 4:2 | 1 | - | - |
| Youth B Bundesliga West 2007/2008 - Appearances as Referee | |
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| 01/09/2007 | FC Schalke 04 | - | Borussia Dortmund | 2:5 | - | - | - |
| 27/02/2008 | FC Schalke 04 | - | Rot-Weiss Essen | 4:2 | 1 | - | - |
| Complete name: | Karl-Markus Schumacher |
| Born: | 09/12/1980 |
| Place of birth: |
Germany |
| Nationality: |
Germany |