Club career Manias was a member of the
Panellinios Basketball Club and its famous 1950s era "Chrysi Pentada", or “The Golden Five” in
English. With Panellinios, he won 3
Greek League championships, in the years 1953, 1955, and 1957. He also won two European Club Championships with the club, as he won the 1955 Brussels Basketball Tournament and the 1956 San Remo Basketball Tournament. While he was also a runner-up at the 1954 San Remo Tournament.
National team career Manias was also a member of the senior men's
Greek national basketball team. With Greece, he competed at the following tournaments: the
1951 Mediterranean Games, the
1951 EuroBasket, the
1952 Summer Olympic Games, and the
1955 Mediterranean Games, where he won a bronze medal. ==Bridge career==