Kalogeropoulos was born to Greek parents in Costa Rica where he started training in tennis.
He was ranked as best Greek player between 1962 and 1974 and was a member of the Greek Davis Cup teams. In 1963, he won junior Wimbledon and French Championships. In 1968, he finished second in the doubles at the Italian Open. He won a bronze medal at the 1971 Mediterranean Games.
Kalogeropoulos retired in 1978.