RIO DE JANEIRO — A changing of the guard in women’s sprints doesn’t mean a redrawing of the map.

That 100-meter Olympic gold medal is heading back to Jamaica, only this time in the hands of Elaine Thompson, a 24-year-old who took down America’s best, to say nothing of her training partner, two-time defending champion Shelly-Ann Fraser-Pryce.

Melissa Gonzalez of the U.S. falls while fighting for the ball with Britain's Nicola White during a field hockey preliminary-round match Saturday. The U.S. suffered its first loss of the tournament, 2-1. Associated Press/Dario Lopz-Mills

Hong Kong's Reginald Lee Chun Hei, top, returns a shot behind teammate Chau Hoi Wah during a badminton mixed doubles match. The Hong Kong team won in straight sets. Associated Press/Kin Cheung

Thompson turned what was supposed to be one of the most competitive races on the Olympic program into a runaway. Running even at the halfway mark with Fraser-Pryce and Tori Bowie of the United States, Thompson pulled away over the last half and defeated Bowie with a bookshelf-sized slice of daylight in between.

Thompson finished in 10.71 seconds, a full .12 seconds better than Bowie.

Fraser-Pryce was trying to become the first person to win three straight 100-meter titles at the Olympics but settled for a bronze medal.

Earlier, Usain Bolt turned the Olympic Stadium into his stage again for his first race at the Rio Games. With an easy win in his 100-meter heat, backed up by the trademark showmanship, he did not disappoint his crowd.

Bolt’s time of 10.07 seconds trailed that of his longtime rival Justin Gatlin by .06 seconds, but Bolt was running into a headwind while the American had the wind on his side.

Bolt is bidding for his third straight gold medal in the 100. Gatlin is aiming for a second 100 title (Athens 2004).

In the men’s 10,000, not even a tumble midway through the race could stop Mo Farah from defending his Olympic title in a dramatic final where he worked his way back through the field, then lost and regained the lead on the last lap.

Farah finally sprinted away on the final lap to win in 27 minutes, 5.17 seconds. Kenya’s Paul Tanui held on for silver and Tamirat Tola of Ethiopia took bronze.

Jeff Henderson of the United States overtook Luvo Manyonga of South Africa by one centimeter on his last jump to win the long jump in 27 feet, 6 inches. Defending champion Greg Rutherford of Great Britain took bronze.

Nafissatou Thiam of Belgium edged defending champion Jessica Ennis-Hill of Great Britain in the heptathlon, winning by 35 points. Brianne Theisen-Eaton of Canada finished third.

TENNIS: Monica Puig won Puerto Rico’s first Olympic gold medal in any sport, upsetting Angelique Kerber of Germany 6-4, 4-6, 6-1 in the women’s singles final.

Puig is also the first woman representing Puerto Rico to earn a medal of any color at an Olympics, and she’s the first unseeded woman to win the singles title since tennis returned to the Olympics in 1988. Ranked 34th, she added her surprising win over the second-seeded Kerber – the Australian Open champion and Wimbledon runner-up this year – to those she picked up against two other past major champions, Garbine Muguruza and Petra Kvitova.

Kvitova earned the bronze for the Czech Republic by beating Madison Keys of the United States 7-5, 2-6, 6-2.

In mixed doubles, Venus Williams is assured of a record-tying fifth tennis medal after she and Rajeev Ram rallied for a 2-6, 6-2, 10-3 victory over Sania Mirza and Rohan Bopanna of India in the semifinals. Williams and Ram face the other U.S. team, Bethanie Mattek-Sands and Jack Sock, who beat Lucie Hradecka and Radek Stepanek of the Czech Republic, 6-4, 7-6 (3).

Williams’ fifth medal will match Kathleen McKane, who won five (one gold) in the 1920s. With a victory Sunday, she’d become the first five-time Olympic tennis gold medalist, moving one ahead of her sister, Serena. It would also make her the first player to win gold in singles, doubles and mixed doubles.

Rafael Nadal’s bid for an unprecedented second men’s singles gold medal ended with a thrill-a-minute semifinal loss to Juan Martin del Potro of Argentina.

Del Potro, who earned a bronze in 2012, will add a silver or gold after rallying to stun Nadal, 5-7, 6-4, 7-6 (5). He’ll meet defending champion Andy Murray in Sunday’s final.

MEN’S VOLLEYBALL: Seemingly down and out only a few days ago, the U.S. is suddenly right back in the mix.

Fresh off Thursday’s stunning four-set victory against host Brazil, the Americans rallied from way down in the first set to beat France 25-22, 25-22, 24-25, 25-22 and improve their position in Pool A.

WOMEN’S FIELD HOCKEY: Great Britain scored two goals in the fourth period to defeat the United States 2-1 and win Pool B.

The U.S., which hasn’t medaled since 1984, still qualified for the quarterfinals.

GOLF: Justin Rose of Great Britain is one round away from winning golf’s first Olympic gold medal in 112 years.

Rose’s 10-foot par putt on the final hole Saturday swirled into the back side of the cup for a 6-under 65, giving him a one-shot lead over Sweden’s Henrik Stenson going into the final round.

Rose was at 12-under 201 and had the lead after Stenson narrowly missed a birdie putt and had to settle for a 68.

FENCING: Ibtihaj Muhammad, who became the first U.S. Olympian to wear a hijab during competition earlier in the week, won a bronze medal Saturday along with her teammates in the women’s team sabre event when they routed Italy, 45-30.

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