| Bundesliga 1987/1988 Upper Play-Off - Appearances as Referee |  |
 |
 |
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| 15/04/1988 | First Vienna FC | - | Wiener Sport-Club | 3:0 | 3 | - | 2 |
| 20/05/1988 | First Vienna FC | - | Austria Wien | 2:0 | 2 | - | - |
| 03/06/1988 | Grazer AK | - | Sturm Graz | 1:1 | 4 | - | 1 |
| Bundesliga 1987/1988 Upper Play-Off - Appearances as Referee | |
|
|
||||
| 15/04/1988 | First Vienna FC | - | Wiener Sport-Club | 3:0 | 3 | - | 2 |
| 20/05/1988 | First Vienna FC | - | Austria Wien | 2:0 | 2 | - | - |
| 03/06/1988 | Grazer AK | - | Sturm Graz | 1:1 | 4 | - | 1 |
| Complete name: | Heinz Prohaska |
| Born: | 26/04/1944 |
| Place of birth: |
Wien, 
Austria |
| Nationality: |
Austria |
| Profession: | Briefträger |