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Park Taehwan (Korea) won the gold medal in the men's 400 meter freestyle swimming in the 2008 Summer Olympics.
Australia is the winner of the gold medal in the men's 400 m freestyle at the Rio 2016 Olympics.
Kathleen (Katie) Ledecky of the United States won the gold medal in the women's 400 m freestyle at the Rio 2016 Olympics.Her result was 3:56:46. She broke a world record and an Olympic record.
The winner of the gold medal in the women's 400 m freestyle at the Rio 2016 Olympics was the United States.Their athlete was Kathleen Ledecky, who also broke a world record and an Olympic record in the event.
Michael Phelps won the men's 400 meter individual medley gold medal in the 2008 Summer Olympics.
Grant Hackett did not win a medal in the 400 meter freestyle at the 2008 Games ... he finished 6th in the finals.
Italy was the winner of the Bronze medal for the men's 400 m freestyle at the Rio 2016 Olympics.
The US team comprised of Michael Phelps, Garrett Weber-Gale, Cullen Jones, Jason Lezak, Nathan Adrian, Ben Wildman-Tobriner, and Matt Grevers won the gold medal for the men's 4 x 100 meter freestyle swimming relay in the 2008 Summer Olympics.
Gabrielle Detti of Italy won the bronze medal in the men's 400 m freestyle at the Rio 2016 Olympics.
The winner of the men's 400 m freestyle at the Rio 2016 Olympics was China.
Sun Yang of China is the winner of the silver medal for the men's 400 m freestyle at the Rio 2016 Olympics.
Yes she won a Bronze Medal for both the 400 m freestyle and the 800 m freestyle to go with the 2 Gold Medals she won at the 2008 Beijing Olympics for those events