he Karaiskakis Stadium as home ground, but in recent years the club has competed in lower divisions and currently plays home matches at the Helleniko Stadium, in Ellinikon. Other football clubs in Greater Piraeus with significant tradition are Ionikos of Nikaia and Proodeftiki of Korydallos.
In basketball, Olympiacos B.C. is the only major club from Piraeus, one of the most successful at domestic and European level, and its home arena is the Peace and Friendship Stadium, while the volleyball department of the same club, Olympiacos S.C., is the dominant domestically and has made great success in European competitions as well. Piraeus rides really high in water polo, where Ethnikos Piraeus and Olympiacos departments have entirely dominated in Greece; the first is considered the "Emperor" of the sport and the latter is the only Greek water polo club to have been crowned European Champion.
First class sporting facilities can be found in Piraeus. The Karaiskakis Stadium, built in 1885 as a bicycle track, enlarged in 1964 and completely rebuilt in 2004, is the second largest football venue in Greece with a capacity of 33,334 and one of the most modern in Europe. It hosted the 1971 UEFA Cup Winners' Cup Final and several games of the football tournament in the 2004 Summer Olympics, while it was used as a velodrome in the 1896 Summer Olympics. The Peace and Friendship Stadium, part of the Faliro Coastal Zone Olympic Complex and built in 1985 opposite to the Karaiskakis Stadium, is the second largest indoor arena in the country and one of the most impressive around Europe, having hosted multiply major international events in several sports, including the volleyball tournament in the 2004 Athens Olympics, the 1998 FIBA World Championship, the EuroBasket 1987 and the Final Four of the Euroleague 1993
