Swimming at the 2004 Summer Olympics – Men's 400 metre freestyle

The men's 400 metre freestyle event at the 2004 Olympic Games was contested at the Olympic Aquatic Centre of the Athens Olympic Sports Complex in Athens, Greece on August 14. Australia's Ian Thorpe edged out his teammate Grant Hackett to defend his Olympic title in 3:43.10, despite having been disqualified for a false start from the national trials in Sydney. Hackett earned a silver in 3:43.36, just 0.01 of a second under his winning time at the trials without the presence of Thorpe. U.S. swimmer Klete Keller set a new American record of 3:44.11 to take his second Olympic bronze medal in the event. Meanwhile, another American Larsen Jensen finished outside the medals in fourth place, but came home in a lifetime best of 3:46.08, holding off Italy's Massimiliano Rosolino by 0.17 seconds.

Swimming at the 2004 Summer Olympics – Men's 400 metre freestyle

The men's 400 metre freestyle event at the 2004 Olympic Games was contested at the Olympic Aquatic Centre of the Athens Olympic Sports Complex in Athens, Greece on August 14. Australia's Ian Thorpe edged out his teammate Grant Hackett to defend his Olympic title in 3:43.10, despite having been disqualified for a false start from the national trials in Sydney. Hackett earned a silver in 3:43.36, just 0.01 of a second under his winning time at the trials without the presence of Thorpe. U.S. swimmer Klete Keller set a new American record of 3:44.11 to take his second Olympic bronze medal in the event. Meanwhile, another American Larsen Jensen finished outside the medals in fourth place, but came home in a lifetime best of 3:46.08, holding off Italy's Massimiliano Rosolino by 0.17 seconds.