This Hungarian referee debuted in the first league in 1999 He received his FIFA badge in 2003 and immediately started refereeing UEFA Cup matches. Kassai is an UEFA Elite Category referee.
Viktor Kassai was selected to officiate at Euro 2005 U-19 and the World Cup U-20 2007 in Canada. He took charge of qualifiers for Euro 2008 and reached the group stage of the Champions League in 2007.
The career of Victor Kassai really took off when he got selected as 4th official for EURO 2008 and also for the Olympic Games in Beijing (August 2008), where he got the final.
Then he was selected for the 2010 World Cup, where he took charge of 3 matches and a semi-final.
A year later he was awarded the Champions League final, making him the most important ref in Europe.
Kassai handled matches at Euro 2012 and is also about in the 2013 Champions League.
His name is on the short list for the World Cup.