| Super League 1989/1990 Abstieg Gruppe A - Appearances as Referee |  |
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| 30/05/1990 | FC Schaffhausen | - | Servette FC | 4:2 | 2 | - | - |
| Super League 1989/1990 Abstieg Gruppe A - Appearances as Referee | |
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| 30/05/1990 | FC Schaffhausen | - | Servette FC | 4:2 | 2 | - | - |
| Complete name: | Oswald Gritsch |
| Born: | 06/10/1946 |
| Place of birth: |
Liechtenstein |
| Nationality: |
Liechtenstein |