| Youth Bundesliga Süd/Südwest 2003/2004 - Appearances as Referee |  |
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| 28/09/2003 | Eintracht Frankfurt | - | SpVgg Greuther Fürth | 2:2 | 2 | - | - |
| 14/03/2004 | Bayern München | - | 1. FC Kaiserslautern | 2:0 | 3 | - | - |
| Youth Bundesliga Süd/Südwest 2003/2004 - Appearances as Referee | |
|
|
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| 28/09/2003 | Eintracht Frankfurt | - | SpVgg Greuther Fürth | 2:2 | 2 | - | - |
| 14/03/2004 | Bayern München | - | 1. FC Kaiserslautern | 2:0 | 3 | - | - |
| Complete name: | Markus Sinn |
| Born: | 02/02/1979 |
| Place of birth: |
Germany |
| Residence: | Filderstadt |
| Nationality: |
Germany |
| Club: | SpVgg Stuttgart-Ost |