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There were 17 men's swimming events with Gold Medals. Michael Phelps got 4 of them, Sun Yang won 2 Gold Medals Other athletes who won a gold medal in swimming are listed on the related link
Russia won the gold medal in the Synchronized Swimming Duet event at the Rio 2016 Olympics.
Russia was the country that won the gold medal in the Team Synchronized Swimming event at the Rio 2016 Olympics.
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Park Taehwan (Korea) won the gold medal in the men's 400 meter freestyle swimming in the 2008 Summer Olympics.
Sachin Nag won the swimming gold medal for India in 1951 during the Asian Games by winning the 100 m freestyle.
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Cullen Jones won a gold medal in the 4x100 freestyle relay in 2008.
Michael Phelps
Michael Phelps
Women's 4x100 relay in swimming
Michelle Cameron of Canada won a gold medal in synchronized swimming at the 1988 Games in Seoul.