Rio Olympics, Day 1
The Rio Olympics are now in full swing after the Summer Games were declared officially open on August 5 in Brazil. The first complete day of competition on August 6 saw three new swimming world records fall as well as plenty of action in other sports, including judo, road cycling, volleyball, basketball, shooting, and archery.

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Katinka Hosszu of Hungary competes on her way to winning gold in the women's 400-meter individual medley.

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Katinka Hosszu celebrates shattering the world record in the women's 400-meter individual medley. Her winning time of 4 minutes, 26.36 seconds knocked two seconds off the previous record.

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Great Britain's Adam Peaty (center) set a new world record in the men's 100-meter breaststroke heats.

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Samba dancers pose at the Olympic Aquatics Stadium in Rio.

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Judokas Eva Csernoviczki of Hungary (in white) and Otgontsetseg Galbadrakh of Kazakhstan compete in the women's 48-kilogram repechage contests. Galbadrakh ended up winning the bronze medal.

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Yeldos Smetov (left) of Kazakhstan and Diyorbek Urozboev of Uzbekistan compete in the men's 60-kilogram judo competition.

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Russia's Beslan Mudranov (white) competes with Kazakhstan's Yeldos Smetov during their gold medal tie in the men's 60-kilogram judo contest, which was won by Mudranov.

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The victory ceremony for the men's 60-kilogram judo competition (left to right:) Naohisa Takato of Japan, Beslan Mudranov of Russia, Yeldos Smetov of Kazakhstan and Uzbekistan's Diyorbek Urozboev.

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Nozomi Sato of Japan (right) celebrates winning a preliminary tie in the women's epee.

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Serbia's Stefan Bircevic scores a slam dunk against Venezuela during an early round of the men's basketball competition.

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Japanese gymnast Kohei Uchimura loses his grip as he competes on the horizontal bar.

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Azerbaijani gymnast Oleg Stepko competes during qualification on the horizontal bar.

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Members of the South Korean team compete in the men's archery semifinal. The Koreans eventually won gold in the men's team competition.

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Gergo Zalanki of Hungary (right) and Nikola Jaksic of Serbia grapple with each other in an early round of the men's water polo competition.

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Elaheh Ahmadi of Iran takes aim during qualification for the women's 10-meter air rifle competition.

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Virginia Thrasher (center) from the United States celebrates after winning the first gold medal of the Rio Games in the 10-meter air rifle competition.

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Cyclists start the men's road race race from Copacabana Beach.