| Aufstiegsrunde 2. Bundesliga 1989/1990 - Appearances as Referee |  |
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| 30/05/1990 | Arminia Bielefeld | - | Wuppertaler SV | 3:0 | 2 | - | - |
| Aufstiegsrunde 2. Bundesliga 1989/1990 - Appearances as Referee | |
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| 30/05/1990 | Arminia Bielefeld | - | Wuppertaler SV | 3:0 | 2 | - | - |
| Complete name: | Dr. Markus Merk |
| Born: | 15/03/1962 |
| Place of birth: |
Kaiserslautern, 
Germany |
| Residence: | Kaiserslautern |
| Nationality: |
Germany |
| Height: | 181 cm |
| Weight: | 69 kg |
| Bundesliga (GER) appearances: | 338 |