| Super League 1993 Relegation group A - Appearances as Referee |  |
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| 07/03/1993 | CS Chênois | - | Grasshopper Club Zürich | 0:1 | 5 | - | - |
| 10/04/1993 | SR Delémont | - | FC Wil 1900 | 2:1 | 4 | - | - |
| 24/04/1993 | FC Basel | - | FC Luzern | 1:1 | 7 | - | - |
| Super League 1993 Relegation group A - Appearances as Referee | |
|
|
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| 07/03/1993 | CS Chênois | - | Grasshopper Club Zürich | 0:1 | 5 | - | - |
| 10/04/1993 | SR Delémont | - | FC Wil 1900 | 2:1 | 4 | - | - |
| 24/04/1993 | FC Basel | - | FC Luzern | 1:1 | 7 | - | - |
| Complete name: | Serge Muhmenthaler |
| Born: | 20/05/1953 |
| Place of birth: |
Grenchen, 
Switzerland |
| Nationality: |
Switzerland |
| Bundesliga (GER) appearances: | 4 |