| Super League 1990/1991 Abstieg Gruppe A - Appearances as Referee |  |
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| 03/03/1991 | FC Fribourg | - | Yverdon Sport FC | 2:0 | 3 | - | - |
| 10/03/1991 | FC Wettingen | - | FC Chiasso | 1:1 | 3 | - | - |
| 13/04/1991 | FC Basel | - | FC Baden | 1:4 | 2 | - | - |
| Super League 1990/1991 Abstieg Gruppe A - Appearances as Referee | |
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| 03/03/1991 | FC Fribourg | - | Yverdon Sport FC | 2:0 | 3 | - | - |
| 10/03/1991 | FC Wettingen | - | FC Chiasso | 1:1 | 3 | - | - |
| 13/04/1991 | FC Basel | - | FC Baden | 1:4 | 2 | - | - |
| Complete name: | Karl Strässle |
| Born: | 28/07/1949 |
| Place of birth: |
Switzerland |
| Nationality: |
Switzerland |