| Super League 1987/1988 Abstieg Gruppe A - Appearances as Referee |  |
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| 23/03/1988 | FC Schaffhausen | - | Etoile Carouge FC | 1:0 | 3 | 1 | 1 |
| 07/05/1988 | FC Schaffhausen | - | FC Wettingen | 1:2 | 3 | - | - |
| Super League 1987/1988 Abstieg Gruppe A - Appearances as Referee | |
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|
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| 23/03/1988 | FC Schaffhausen | - | Etoile Carouge FC | 1:0 | 3 | 1 | 1 |
| 07/05/1988 | FC Schaffhausen | - | FC Wettingen | 1:2 | 3 | - | - |
| Complete name: | Serge Muhmenthaler |
| Born: | 20/05/1953 |
| Place of birth: |
Grenchen, 
Switzerland |
| Nationality: |
Switzerland |
| Bundesliga (GER) appearances: | 4 |