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At the Olympics, both men and women compete in the 4x100 meter freestyle relay, 4x200 meter freestyle relay, and 4x100 meter medley relay.
200 freestyle, 100 butterfly, 200 butterfly, 200 individual medley, 400 individual medley, 4x100 freestyle relay, 4x200 freestyle relay, and 4x100 medley relay.
Leah Neale, Emma Mckeon, Bronte Barratt, and Tamsin Cook of Australia won the silver medal in the women's 4x200 m freestyle relay at the Rio 2016 Olympics.
Kosuke Hogino, Naito Ehara, Yuki Kobori, and Takeshi Matsuda of Japan won the bronze medal in the men's 4x200 m freestyle relay at the Rio 2016 Olympics.
Conor Dwyer, Francis Haas, Ryan Lochte, and Michael Phelps of the United States won the gold medal in the men's 4x200 m freestyle relay at the Rio 2016 Olympics.
Allison Schmitt, Leah Smith, Madeline Dirado, and Katie Ledecky of the United States won the gold medal in the women's 4x200 m freestyle relay at the Rio 2016 Olympics.
Katharine Savard, Taylor Madison Ruck, Brittany Maclean, and Penny Oleksiak of Canada won the bronze medal in the women's 4x200 m freestyle relay at the Rio 2016 Olympics.
Australian swimmer Murray Rose won 6 medals (4 gold, 1 silver, 1 bronze) in Olympic competition at the 1956 and 1960 Games. 1956 - Gold in men's 400 meter freestyle, 1500 meter freestyle, and 4x200 meter freestyle relay. 1960 - Gold in 400 meter freestyle, silver in 1500 meter freestyle, and bronze in 4x200 meter freestyle relay.
5 ... 3 gold and 2 silver. Gold - 100 meter freestyle at the 1912 Games in Stockholm and 1920 Games in Antwerp and 4x200 meter freestyle relay at the 1920 Games in Antwerp. Silver - 4x200 meter freestyle relay at the 1912 Games in Stockholm and 100 meter freestyle at the 1924 Games in Paris.
Mark Spitz won seven medals at the 1972 Games: 100 meter butterfly - Gold 200 meter butterfly - Gold 100 meter freestyle - Gold 200 meter freestyle - Gold 4x100 meter freestyle relay - Gold 4x200 meter freestyle relay - Gold 4x100 meter medley relay - Gold He also won four medals at the 1968 Games: 4x100 meter freestyle relay - Gold 4x200 meter freestyle relay - Gold 100 meter butterfly - Silver 100 meter freestyle - Bronze
4 ... gold in men's 4x100 meter freestyle relay and 4x200 meter freestyle relay and silver in 100 meter butterfly and 4x100 meter medley relay.
Great Britian won the silver medal in the men's 4x200 m freestyle relay at the Rio 2016 Olympics with competing athletes Stephen Milne, Duncan Scott, Dan Wallace, and James Guy.