Sporthalle Hamburg, also known as Alsterdorfer Sporthalle, is an indoor arena in Hamburg, Germany. Alsterdorfer Sporthalle holds up to 7,000 people with 4,200 seats. It opened in 1968 and is located in the city's quarter of Winterhude. It hosts mainly indoor sporting events, pop & rock concerts and trade shows. The 1978 World Fencing Championships were held here. In July 2010, all matches of the FIBA Under-17 World Championship 2010 were played in this hall.