The Greek Water Polo cup is the second more important competition of Greek waterpolo and is organised by KOE (Hellenic Swimming Federation). It took place from 1953. Initially started as a competition in memory of Pantelis Psychas, Greek athlete of the swimming.[1] The competition was interrupted from 1958 to 1983. Also it wasn't held the season 1993-94. From season 1998-99 was instituted the Final Four system. Olympiacos had won the most cups, followed by Ethnikos Piraeus.[2]