Olympic update

TOKYO (AP) — Katie Ledecky has made more history for the U.S. in the pool. Ledecky won the 800-meter freestyle, finishing her grueling Olympic program with a third straight victory in a race she hasn’t lost since 2010. The 24-year-old Ledecky became the first female swimmer to earn six individual gold medals in her career. She won two golds and two silvers in Tokyo.

Meanwhile, Calaeb Dressel captured his third gold medal of the Tokyo Games — including two individual golds — with a world record in the 100-meter butterfly. On Sunday, Dressel is favored to win another individual gold in the 50-meter freestyle. He’ll also go in the men’s 4×100 medley relay, an event the Americans have never lost.

The Olympic debut of the 4x-100-meter mixed medley relay lived up to its promise of utter chaos and unpredictability. And when Caeleb Dressel dived in, the Americans were so far back, he had no chance to win. In the end, Britain emerged with a gold medal and a world record. China claimed silver and Australia took bronze. The Americans finished fifth, ensuring that Dressel will not be able to win six golds in Tokyo.

In other action at the Olympics:

— Elaine Thompson-Herah made history on the track. Thompson-Herah broke Florence Griffith Joyner’s 33-year-old Olympic record in the women’s 100 meters, crossing the line in 10.61 seconds to defend her title and lead a Jamaican sweep of the medals in the event.

— After initially being disqualified following the qualifying round, and then being reinstated, U.S. runners had to settle for a bronze in the 4×400 mixed relay event. Poland was the surprise winner, with the Dominican Republic taking the silver, after also being reinstated. The U.S. team didn’t have Allyson Felix in the lineup. There was some thought Felix might run in the relay with a chance to win her record 10th Olympic medal.

— The U.S. men’s basketball team is headed to the quarterfinals at the Tokyo Games. Jayson Tatum scored 27 points, Kevin Durant added 23 and the U.S. defeated the Czechs 119-84 to clinch a berth in the knockout stage.

— Novak Djokovic is leaving the Tokyo Olympics without any medals. The top-ranked Djokovic lost his cool and abused his racket several times during a 6-4, 6-7 (6), 6-3 loss to Pablo Carreño Busta of Spain in the bronze medal match of the tennis tournament.

— Red Sox prospect Triston Casas hit a go-ahead, two-run homer in the fourth inning, Nick Allen also went deep and the United States rallied past defending champion South Korea 4-2 to finish the group stage of the Olympic baseball tournament with a 2-0 record. Nick Martínez, who left the major leagues for Japan after the 2017 season, struck out nine in five innings. Scott McGough, Edwin Jackson, Anthony Gose and David Robertson finished a five-hitter for the Americans, who struck out 14. The United States plays Japan on Monday night in the start of a double-elimination second stage.

— Xander Schauffele is 18 holes away from a gold medal, and the podium still feels a long way off. Schauffele, a 27-year-old American golfer whose mother was raised in Japan, didn’t have a lot go his way until he finished on a strong note to keep his one-shot lead. Japanese star Hideki Matsuyama is right behind him.

— BMX rider Connor Fields has been transferred from the intensive care unit at a Tokyo hospital to a high-level care wing one day after a horrific crash during the semifinals of the Olympic race left him laying motionless on the asphalt. The 28-year-old from Las Vegas sustained a brain hemorrhage in the crash, and the Olympic neurosurgeon is on standby in case surgery is needed to relieve pressure on his brain. But USA Cycling says the most recent CT scan showed no additional brain injury.

— Simone Biles is taking a few more days off. USA Gymnastics says Biles has decided to withdraw from the Olympic event finals in the vault and uneven bars. She continues to be evaluated daily to determine whether she’ll compete in the finals for floor exercise and balance beam.