| U20 World Cup 2007 Canada - Appearances as Referee |  |
 |
 |
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| 04/07/2007 | Brazil | - | South Korea | 3:2 | - | - | - |
| 06/07/2007 | Argentina | - | North Korea | 1:0 | 4 | - | - |
| 13/07/2007 | Mexico | - | Congo | 3:0 | 8 | 1 | - |
| U20 World Cup 2007 Canada - Appearances as Referee | |
|
|
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| 04/07/2007 | Brazil | - | South Korea | 3:2 | - | - | - |
| 06/07/2007 | Argentina | - | North Korea | 1:0 | 4 | - | - |
| 13/07/2007 | Mexico | - | Congo | 3:0 | 8 | 1 | - |
| 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 |