
Jamaican sprinter Usain Bolt looks back at his competitors during a 100-meter semifinal on Sunday, August 14. Bolt won the final a short time later, becoming the first man in history to win the 100 meters at three straight Olympic Games.

Mexican diver Melany Hernandez competes in the 3-meter springboard event on Friday, August 12.

U.S. swimmer Michael Phelps -- the most decorated Olympian of all time -- kisses his gold medal from the 4x200 freestyle on Tuesday, August 9. Phelps finished the Rio Games with five gold medals and one silver. He ends his Olympic career with 23 gold medals and 28 medals overall.

Shaunae Miller of the Bahamas dives over the finish line to win gold in the 400 meters on Monday, August 15. She edged American Allyson Felix by .07 seconds.

U.S. gymnast Simone Biles, who had already won the individual all-around and the vault, wobbles during the balance beam finals on Monday, August 15. She finished with the bronze.

Ireland's Fiona Doyle swims the 200-meter breaststroke on Wednesday, August 10.

U.S. swimmer Simone Manuel cries during the medal ceremony after winning the 100-meter freestyle on Friday, August 12. Manuel is the first African-American woman to win an individual swimming event in the Olympics.

Weightlifter Sarah Robles won bronze for the United States on Sunday, August 14. It was the United States' first weightlifting medal in 16 years.

Jamaica's Elaine Thompson, right, wins the 100-meter final -- and the title of world's fastest woman -- on Saturday, August 13.

American cyclist Kristin Armstrong hugs her son, Lucas, after winning the time trial for the third straight Olympics on Wednesday, August 10. Williams won gold at the event a day before turning 43 years old. She was the oldest woman in the field by seven years.

U.S. gymnasts Simone Biles, left, and Aly Raisman hug after winning gold and silver in the individual all-around on Thursday, August 11.

British runner Mo Farah crosses the finish line to successfully defend his 10,000-meter title on Saturday, August 13.

South Korean fencer Park Sang-young celebrates after he won gold in the individual epee competition on Tuesday, August 9.

Triplets Liina Luik, Lily Luik and Leila Luik pose with the Estonian flag after taking part in the marathon on Sunday, August 14.

Cao Yuan and Qin Kai, synchronized divers from China, compete in the 3-meter springboard event on Wednesday, August 10. They won the bronze in a diving pool that had mysteriously turned green.

U.S. field hockey player Melissa Gonzalez falls to the turf during a match against Great Britain on Saturday, August 13.

A remote-control car carries the discus during the men's qualifying round on Friday, August 12.

Brazilian athlete Nubia Soares lands in the sand pit while competing in the triple jump on Saturday, August 13.

Cameras are set up at the bottom of the swimming pool as women take part in a 50-meter freestyle heat on Friday, August 12. Catching the Olympic moments that TV doesn't

A cell phone falls out of the pocket of French fencer Enzo Lefort as he competes against Germany's Peter Joppich on Sunday, August 7.

Larissa Franca, a beach volleyball player from Brazil, is hugged by supporters after a quarterfinal victory on Sunday, August 14.

A fan watches the archery competition in pouring rain on Wednesday, August 10.

Australia fans show support for their team during a water polo match against Japan on Wednesday, August 10.

Ibtihaj Muhammad, the first U.S. Olympian to compete in a hijab, reacts during a sabre fencing semifinal on Saturday, August 13. Her team lost to Russia but still took home the bronze.

A woman runs by the Puffed Star II sculpture during the Olympic marathon on Sunday, August 14.

Ukrainian boxer Tetyana Kob celebrates after she won a flyweight bout on Friday, August 12.

A barbell rests on the collarbones of French weightlifter Gaelle Nayo-Ketchanke as she performs a clean-and-jerk lift on Friday, August 12.

American Helena Scutt sails before the start of a 49er FX race on Monday, August 15.

Brazilian soccer star Neymar celebrates after a quarterfinal victory over Colombia on Saturday, August 13. He scored the first goal of the match, which ended 2-0.

Athletes race in the semifinals of the 3,000-meter steeplechase on Sunday, August 14.

Nigel Paul, a super-heavyweight boxer from Trinidad and Tobago, lies on the canvas after being knocked out by Nigeria's Efe Ajagba on Saturday, August 13.

A badminton racket is swung during a doubles match on Saturday, August 13.

South Africa's Wayde van Niekerk, left, blew away the competition in the 400 meters on Sunday, August 14. He finished in 43.03 seconds, smashing the world record set by Michael Johnson in 1999.

South Africa's Chad Le Clos, right, looks over at Michael Phelps during the 200-meter butterfly final on Tuesday, August 9. Phelps' victory avenged one of the few losses of his Olympic career -- a second-place finish to Le Clos in 2012.

Monica Puig tosses her racket after winning Puerto Rico's first Olympic gold medal on Saturday, August 13. Puig defeated Germany's Angelique Kerber in three sets, becoming the first unseeded player to win gold since women's tennis was reintroduced in 1988.

U.S. diver Kassidy Cook trains at the Maria Lenk Aquatics Centre on Thursday, August 11.

Germany's Christine Wenzel ejects cartridges during skeet qualification on Friday, August 12.

New Zealand's Olivia Podmore, left, and Spain's Tania Calvo Barbero fall during a keirin race on Saturday, August 13.

Israel's Or Sasson offers a handshake to Egypt's Islam El Shehaby after their judo match on Friday, August 12. El Shehaby refused and was later sent home by the Egyptian Olympic Committee.

Ethiopia's Etenesh Diro runs with one bare foot after losing a shoe during the 3,000-meter steeplechase on Saturday, August 13. She still finished the race and advanced to the final.

Thibault Amani Danho, a swimmer from the Ivory Coast, competes in the 100-meter freestyle on Tuesday, August 9.

American tennis star Serena Williams, the world's top-ranked player and the defending Olympic champion, screams after losing a point to Ukraine's Elina Svitolina on Tuesday, August 9. Svitolina upset Williams to advance to the quarterfinals.

Germany''s Jennifer Oeser competes in the long-jump portion of the heptathlon on Saturday, August 13.

China's Qin Kai proposes to fellow diver He Zi after she received silver in the 3-meter springboard on Sunday, August 14. See 40 amazing Olympic photos from last week