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