| Super League 1988/1989 Abstieg Gruppe A - Appearances as Referee |  |
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| 01/04/1989 | FC Zürich | - | Lausanne Sports | 1:1 | 6 | - | - |
| 10/06/1989 | FC St. Gallen | - | FC Zürich | 2:1 | - | - | - |
| Super League 1988/1989 Abstieg Gruppe A - Appearances as Referee | |
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| 01/04/1989 | FC Zürich | - | Lausanne Sports | 1:1 | 6 | - | - |
| 10/06/1989 | FC St. Gallen | - | FC Zürich | 2:1 | - | - | - |
| Complete name: | Bruno Klötzli |
| Born: | |
| Place of birth: |
Switzerland |
| Nationality: |
Switzerland |