| Europa League 1963/1964 - Appearances as Referee |  |
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| 12/02/1964 | Juventus | - | Real Zaragoza | 0:0 | - | - | - |
| Europa League 1963/1964 - Appearances as Referee | |
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| 12/02/1964 | Juventus | - | Real Zaragoza | 0:0 | - | - | - |
| Complete name: | Karl Kainer |
| Born: | 09/04/1915 † 15/04/2006 |
| Place of birth: |
Erlach, 
Austria |
| Residence: | Wolfsberg |
| Nationality: |
Austria |
| Profession: | Versicherungsdirektor |