| Europa League Qual. 2018/2019 - Appearances as Referee |  |
 |
 |
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| 30/08/2018 | Burnley FC | - | Olympiakos Piraeus | 1:1 | 7 | - | - |
| Europa League Qual. 2018/2019 - Appearances as Referee | |
|
|
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| 30/08/2018 | Burnley FC | - | Olympiakos Piraeus | 1:1 | 7 | - | - |
| Complete name: | Viktor Kassai |
| Born: | 10/09/1975 |
| Place of birth: |
Tatabánya, 
Hungary |
| Residence: | Tatabánya |
| Nationality: |
Hungary |
| Profession: | Reiseverkehrskaufmann |
| Height: | 189 cm |
| Weight: | 79 kg |