 Olympiacos is one of the most successful teams in Europe and a traditional powerhouse of continental water polo, having won 2 LEN Champions Leagues (2001–02, 2017–18), 1 LEN Super Cup (2002) and 2 Triple Crowns (2002, 2018), the only Greek club to have been crowned European Champions.They have also been six times runners-up (counting nine European finals overall), three in the LEN Champions League (2000–01, 2015–16, 2018–19), two in the LEN Cup Winners' Cup (1997–98, 1998–99) and one more in the LEN Super Cup (2018).In 2001–02, Olympiacos became the first club ever in waterpolo history to win all four competitions they claimed (LEN Champions League, LEN Super Cup, Greek League and Greek Cup), completing a Continental Quadruple.