The fastest man in world has won an unprecedented third straight Olympic gold medal in the men's 100 meter dash.
Jamaica's Usain Bolt came from behind to take the gold Sunday night in Rio de Janeiro, overcoming a poor start to catch American sprinter Justin Gatlin, who finished second for a silver medal.
A huge crowd watching the race on a large screen in Bollt's hometown of Kingston erupted in joy as he crossed the finish line in 9.58 seconds, short of the world record.
Canada's Andre de Grasse finished third and will take home a bronze medal.
A few minutes earlier, South Africa's Wade van Niekerk set a world's record in the men's 400 meter final finishing first in 43.03 seconds, beating his two top contenders Kirani James of Grenada and LaShawn Merritt of the United States.
In all, 22 gold medals were at stake Sunday in 12 sports.
British golfer Justin Rose, a fixture at major championships in his homeland and the United States, won the gold medal in the sport's return to the Olympics after a 104-year hiatus. Rose edged Swede Henrik Stenson on the last hole, tapping in a short birdie putt while Stenson bogeyed to finish two shots back and capture the silver medal. American Matt Kuchar won the bronze medal.
Simone Biles captured her third gold medal of the Rio Games, becoming the first American female gymnast to win three golds in the same Olympics. In the vault final, she finished ahead of silver medalist Maria Paseka of Russia and bronze medalist Giulia Steingruber of Switzerland.
The 400-meter final is expected to be a tight race between American LaShawn Merritt, Kirani James of Grenada and Wayde van Niekerk of South Africa.
In tennis, Britain's Andy Murray is trying to become the first player to win two Olympic singles gold medals, facing Argentina's Juan Martin del Potro.
Gymnastics also features the women's uneven bars and pommel horse. The men will decide gold in the floor exercise.
Other final events will take place in boxing, fencing, track cycling, diving, sailing, shooting and weightlifting.
The Sunday action started with the women's marathon, in which Jelagat Sumgong of Kenya claimed the gold medal with a time of 2 hours, 24 minutes, 4 seconds. The silver medal went to Kenyan-born Eunice Kirwa, who represented Bahrain, while the bronze was claimed by world champion Mare Dibaba of Ethiopia.
Sumgong, the first Kenyan to win the event, provided her country its first gold of the Rio Games on a sunny day just hours after American swimmer Michael Phelps won his 23rd Olympic career gold medal. It was his fifth of the Rio Games, in what may be the final race of his Olympic career.
The most decorated Olympian in history swam the third leg of the 4x100-meter medley relay, coming from behind to pass Britain and give the U.S. the lead going into the final leg.
The first leg of the relay, the backstroke, turned out to be a world-record time by American Ryan Murphy, and that pushed the U.S. team toward an Olympic record time for the complete race.
The U.S. women's 4x100-meter medley relay also won gold Saturday - the nation's 1,000th gold medal in Summer Olympics history.
And on the final day of swimming competition in Rio, Italy's Gregorio Paltrinieri earned gold in swimming's most grueling race - the men's 1,500-meter freestyle. Connor Jaeger of the U.S. took silver.
Earlier, Pernille Blume of Denmark held off American Simone Manuel to win the 50-meter freestyle.
Track and field
On the track, Jamaican Elaine Thompson took gold in the women's 100 meters in 10.71 seconds, ending a bid by her countrywoman, Shelly-Ann Fraser-Pryce, to win the sprint event at three straight Olympic Games. American Tori Bowie took silver, just ahead of Fraser-Pryce.
The long jump crown went to American Jeff Henderson, earning the gold on his sixth and final jump.
British runner Mo Farah was tripped by American training partner Galen Rupp on the 10th lap of the men's 10,000-meter race, but recovered to successfully defend his Olympic title.
In the heptathlon, Belgium's Nafissatou Thiam beat out defending champion Jessica Ennis-Hill of Britain in a competition that went down to a matter of seconds in the last event.
Elsewhere in Rio, Iran's Sohrab Moradi took gold in men's 94-kilogram weightlifting - the country's second weightlifting victory in two days - and Russia won its fourth fencing gold, crushing Ukraine in the women's team sabre event.
Puerto Rican tennis player Monica Puig won the first Olympic gold medal for the U.S. territory in any sport Saturday, beating Germany's Angelique Kerber at women's singles in a big upset. Puig was unseeded, while the second-seeded Kerber won the Australian Open in January and was runner-up at Wimbledon in July.
Muslim-American Ibtihaj Muhammad, the first U.S. Olympian to wear a hijab during competition, won a bronze medal in the women's team sabre event as the U.S. beat Italy, 45-30, to clinch third place and the first fencing medal in Rio for the American women.
Meanwhile, Russian long jumper Darya Klishina is fighting her suspension from the games, saying the doping allegations against her are politically motivated.
Previously, Klishina had been the only Russian track and field athlete exempted from a blanket ban on Russian-trained athletes implicated in a state-sponsored doping scandal. Klishina has trained the past three years in the U.S. state of Florida and was subjected to non-Russian drug tests.
But reports say her name has surfaced in a lawyer's report on the scandal, putting the International Court of Arbitration for Sport under pressure to rule on her case before the long jump competition starts Tuesday.