Zoltán Kásás was also a gifted player who won an Olympic silver medal in 1972, a World Championship in 1973, and a European title in 1974.

He made his Olympic debut in 1996, where Hungary reached the semifinals before losing to the Manuel Estiarte-led Spanish squad.

However, the Hungarian team bounced back to win European Championships in 1997 and 1999, as well as a Champions League cup in 1998, culminating with three Olympic gold medals at Sydney in 2000, Athens in 2004 and Beijing in 2008.

He is, jointly with Croat Igor Hinić and Greek Georgios Afroudakis, the tenth athlete to compete in water polo at five Olympics.

He was named Most Valuable Player at the 2002 FINA Men's Water Polo World Cup, where Hungary claimed the silver medal.