The 2007 World Aquatics Championships or the XII FINA World Championships were held in Melbourne, Australia from 17 March to 1 April 2007. The competition took place at three locations in central Melbourne: the Melbourne Sports and Aquatic Centre (diving and water polo), St Kilda Beach (open water), and Rod Laver Arena in a temporary pool christened the Susie O'Neill Pool (synchro and swimming).
The total attendance for the championships was more than 215,000, setting a new record attendance for the event.
A total of 2,158 athletes from 167 nations participated in the 2007 Worlds.
Host nation
At the end of the competition, the medals table contained an entry for Tunisia, with one gold and one silver medal, both won by Oussama Mellouli. However, on 11 September 2007, the Court of Arbitration for Sport in Lausanne, Switzerland vacated these results imposing an 18-month competition ban on Mellouli, effective retroactively to 30 October 2006 for doping with amphetamine.
The Swimming competition comprised various events using all four strokes (Freestyle, Butterfly, Breaststroke and Backstroke) for men and women ranging in distance from 50 m up to 1500 m.
A total of 40 gold medals were available for the Championships. The swimming schedule took place over eight days during the second week of the Championships.
The Swimming events were held at the 15,000 seat Rod Laver Arena using a temporary pool.
The open water swimming competition saw men and women competing in events over 5 km, 10 km and 25 km distances. Events were held at St Kilda Beach.