He is considered to be one of the greatest players in Panathinaikos Athens history, and is the club's all-time leading scorer.

[2] As a member of the Greek Under-18 junior national team, Kontos won the silver medal at the 1970 FIBA Under-18 EuroBasket.

[4] At the 1975 FIBA EuroBasket, which took place in Belgrade, Yugoslavia, the famous "The Serenade on the Danube" incident occurred.

The Hellenic Basketball Federation had given the Greek national team's caretaker, Panos Metaxas, some bottles of ouzo, brandy, cognac, nuts, and miniature tcholiadaki, that were supposed to then be given as gifts to FIBA's head officials and refs.

He worked as the head coach of the Greek clubs Triton, Esperos Kallitheas, Milon, Ionikos NF, Pagrati, and Dafni.