U.S. swimmer Michael Phelps celebrates his 22nd Olympic gold medal after he won the 200-meter individual medley on Thursday, August 11. This is the fourth straight Olympics that Phelps has won the event.
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U.S. swimmer Simone Manuel, right, hugs Canadian Penny Oleksiak after they tied for first place in the 100-meter freestyle. They finished in an Olympic-record time of 52.70 seconds. Manuel is the first African-American woman to medal in an individual swimming event.
Biles hugs her teammate Aly Raisman, who won the silver.
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Raisman reacts after her balance beam performance.
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Apisai Domolailai and Viliame Mata celebrate after Fiji won its first-ever Olympic medal with a 43-7 victory over Great Britain in the rugby sevens final.
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Osea Kolinisau scores Fiji's first try in the final.
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British cyclist Callum Skinner was part of the gold-medal sprint team that also included Jason Kenny and Philip Hindes on Thursday.
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Canadian golfer Graham DeLaet tees off to start his first round. He finished the round tied for second place after a 5-under 66.
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Russian fencer Violetta Kolobova celebrates after defeating Estonia's Irina Embrich to win bronze in the team epee.
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Competitors sail during the women's Laser Radial event.
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British fans cheer Charlotte Dujardin in the team dressage Grand Prix event.
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American Kayla Harrison celebrates after winning the judo gold medal in the 78-kilogram (172-pound) weight class. Harrison also won gold at the 2012 London Games.
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Brazilian sailors Samuel Albrecht and Isabel Swan capsize during the Nacra 17 mixed race.
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Estonian fencer Irina Embrich, left, competes in the team epee event.
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Australian cyclist Patrick Constable gets ready to compete in team sprint qualifying.
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Ben Saxton and Nicola Groves sail for Great Britain in Guanabara Bay.
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Brazilian gymnast Rebeca Andrade competes on the uneven bars during the individual all-around.
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Croatian center Miro Bilan, second left, eyes a rebound during a game against Brazil.
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Hungary's Ildiko Toth, left, tussles with Spain's Marta Bach Pascual during a water polo game.
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China's Zhang Binbin competes in the 50-meter rifle (three positions). She won the silver.
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German canoeist Luuka Jones won silver in the K-1 slalom.
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A sailing event gets underway.
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Venezuelan boxer Albert Ramirez, in red, faces Algeria's Abdelhafid Benchabla in a light-heavyweight bout. Benchabla advanced to the quarterfinals.
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Belgian field hockey player Felix Denayer lies injured on the turf during a match against Spain.
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British rugby player James Rodwell rises during a lineout against South Africa.
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Romania's Ana Maria Popescu celebrates after her fencing team won an epee quarterfinal match against the United States.
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A Poland supporter has her face painted before a handball match.
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Badminton play began Thursday.
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Rowing teams from Romania, New Zealand and the Netherlands race during the women's eight competition.
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Canada's Belinda Trussell performs a routine during the dressage Grand Prix event.
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Morocco's Mohammed Rabii is punched by Kenya's Rayton Okwiri during their welterweight bout. Rabii advanced to the quarterfinals.
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German rower Karl Schulze celebrates with his gold medal after winning the quadruple sculls competition.
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Chinese judoka Zhehui Zhang reacts after losing to Kayla Harrison in the 78-kilogram (172-pound) weight class. Harrison would go on to win the gold medal.
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Chinese badminton player Wang Yihan returns a shot during a singles match against Ireland's Chloe Noelle Magee.
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Barbara Engleder celebrates after winning gold in the 50-meter rifle (three positions).
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Poland's Mateusz Jachlewski prepares for a shot against Egypt.
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South Africa's Jaco van Zyl hits a tee shot during the first round of the golf competition.
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France's Audrey Tcheumeo won silver in the 78-kilogram (172-pound) judo competition.
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France's Lauren Rembi reacts after her team lost to Russia in their epee quarterfinal.
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Vladimir Samsonov, a table tennis player from Belarus, plays a shot against Zhang Jik of China.
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South Korea's Ki Bo-bae competes in the individual archery competition. She ended up with the bronze.
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China's Chen Long returns to Sri Lanka's Niluka Karunaratne during a badminton match.