Kosuke Kitajima
Swimmers from the United States continued to dominate the medal tally with a total of 28, earning twelve golds, nine silver, and seven bronze. Australia still maintained the second spot from Sydney in 2000, but produced a total of 15 more medals (seven golds, five silver, and three bronze) to its historical hardware in swimming. Meanwhile, Japan moved from behind to third overall in the medal board with eight medals after a sterling breaststroke double from Kosuke Kitajima. A total of eight world records and twenty-five Olympic records were set during the competition.