| Super League 1988/1989 Abstieg Gruppe B - Appearances as Referee |  |
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| 08/04/1989 | Etoile Carouge FC | - | Yverdon Sport FC | 0:1 | 2 | - | - |
| 29/04/1989 | FC Bulle | - | FC Baden | 2:0 | 1 | - | - |
| 27/05/1989 | FC Lugano | - | FC Bulle | 3:1 | 3 | - | - |
| Super League 1988/1989 Abstieg Gruppe B - Appearances as Referee | |
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| 08/04/1989 | Etoile Carouge FC | - | Yverdon Sport FC | 0:1 | 2 | - | - |
| 29/04/1989 | FC Bulle | - | FC Baden | 2:0 | 1 | - | - |
| 27/05/1989 | FC Lugano | - | FC Bulle | 3:1 | 3 | - | - |
| Complete name: | Peter Kellenberger |
| Born: | 27/03/1963 |
| Place of birth: |
Switzerland |
| Nationality: |
Switzerland |