| U20 World Cup 2017 South Korea - Appearances as Referee |  |
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 |
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| 22/05/2017 | Saudi Arabia | - | Senegal | 0:2 | 7 | - | - |
| 26/05/2017 | Guinea | - | Argentina | 0:5 | 6 | - | - |
| U20 World Cup 2017 South Korea - Appearances as Referee | |
|
|
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| 22/05/2017 | Saudi Arabia | - | Senegal | 0:2 | 7 | - | - |
| 26/05/2017 | Guinea | - | Argentina | 0:5 | 6 | - | - |
| 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 |