the breakaway Super League (SL) competition in 1997 before moving to the new National Rugby League in 1998. Initially playing at the Adelaide Oval, the club moved to the more suitable Hindmarsh Stadium late in the 1998 season. As part of a peace deal with the Australian Rugby League to end the Super League war, the club's owners News Limited (who were also owners of the SL) suddenly closed the club only weeks before the start of the 1999 season. Adelaide has two professional basketball teams, the men's team being the Adelaide 36ers which plays in the National Basketball League (NBL) and the women's team, the Adelaide Lightning which plays in the Women's National Basketball League (WNBL). Both teams play their home games at the Titanium Security Arena. Adelaide has a professional netball team, the Adelaide Thunderbirds, which plays in the national netball competition, the Suncorp Super Netball championship, with home games played at Priceline Stadium. The Thunderbirds occasionally play games or finals at the Titanium Security Arena, while international netball matches are usually played at the 10,500 seat Adelaide Entertainment Centre. The Titanium Security Arena has a capacity of 8,000 and is the largest purpose-built basketball stadium in Australia. Since 1999 Adelaide and its surrounding areas have hosted the Tour Down Under bicycle race, organised and directed by Adelaide-based Michael Turtur. Turtur won an Olympic gold medal for Australia in the 4000 m team pursuit at the 1984 Los Angeles Olympics. The Tour Down Under is the largest cycling event outside Europe and was the first event outside Europe to be granted UCI ProTour status. Adelaide maintains a franchise in the Australian Baseball League, the Adelaide Giants. They have been playing since 2009, and their home stadium (until 2016) was Norwood Oval. From 2016 the team moved to the Diamond Sports Stadium located near the Adelaide International Airport due to renovations at Norwood. Adelaide also has an ice hockey team, Adelaide Adrenaline in the Australian Ice Hockey League (AIHL). It was national champions in 2009 and plays its games at the IceArenA. The Australian Grand Prix for World Championship Formula One racing was hosted by Adelaide from 1985 to 1995 on the Adelaide Street Circuit which was laid out in the city's East End as well as the eastern parklands including the Victoria Park Racecourse. The Grand Prix became a source of pride, and losing the event to Melbourne