Olympics: US swimmer Ledecky easily wins 1500m for first gold

Simone Biles of the United States lands in the vault during the artistic gymnastics women's final at the 2020 Summer Olympics on Tuesday in Tokyo. She exited with a medical issue after the vault, and the Russian Olympic Committee won the gold medal, with the U.S. finishing second. (AP Photo/Gregory Bull)

Russian Olympic Committee's artistic gymnastics women's team, from right, Liliia Akhaimova, Viktoriia Listunova, Angelina Melnikova and Vladislava Urazova celebrate after winning the gold medal at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo.(AP Photo/Natacha Pisarenko)

Belgium players celebrate their win over Australia in a women's basketball game at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Saitama, Japan. (AP Photo/Eric Gay)

Sabine Beate Kusterer of Germany celebrates after a lift as she competes in the women's 59k weightlifting event, at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Luca Bruno)

Jolanda Neff of Switzerland celebrates as she crosses the finish line for the gold medal during the women's cross-country mountain bike competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Izu, Japan. (AP Photo/Thibault Camus)

Greece goalkeeper Emmanouil Zerdevas gets hit by a shot that bounced off him for a goal during a preliminary round men's water polo match against Italy at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Mark Humphrey)

Jessica Parratto, of the United States, reacts after winning a silver medal in the women's synchronized 10-meter platform diving final at the Tokyo Aquatics Centre at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Dmitri Lovetsky)

Carissa Moore, of the United States, celebrates winning the gold medal in the women's surfing competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, at Tsurigasaki beach in Ichinomiya, Japan. (AP Photo/Francisco Seco)

Brazil's Italo Ferreira celebrates holding the gold medal in the men's surfing competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, at Tsurigasaki beach in Ichinomiya, Japan. (AP Photo/Francisco Seco)

Jolanda Neff of Switzerland, right, embraces teammates Sina Frei (8) who won silver, and Linda Indergand, who won bronze, for a sweep of the podium for Switzerland, at the finish line the women's cross-country mountain bike competition at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Izu, Japan. (AP Photo/Christophe Ena)

Sweden's Anna Anvegard (19) scores on a header against New Zealand during a women's soccer match between New Zealand and Sweden at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Rifu, Japan. (AP Photo/Andre Penner)

Sweden's Anna Anvegard (19) celebrates after scoring on a header against New Zealand during a women's soccer match between New Zealand and Sweden at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Rifu, Japan. (AP Photo/Andre Penner)

Hoang Thi Duyen of Vietnam falls as she competes in the women's 59kg weightlifting event, at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Luca Bruno)

Justin Dowell, of the United States, makes a jump during a BMX Freestyle training session at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Ben Curtis)

Norway's Helene Naess and Marie Ronningen compete during the 49erfx women race at the Enoshima harbour during the 2020 Summer Olympics, Tuesday, July 27, 2021, in Fujisawa, Japan. (AP Photo/Bernat Armangue)

Xue Chen, right, of China, and teammate Wang Zinzin, close in on the ball during a women's beach volleyball match against the Netherlands at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Felipe Dana)

Viktoriia Us of Ukraine competes in the Women's K1 of the Canoe Slalom at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Kirsty Wigglesworth)

Team Italy celebrates after winning the Women's Epee team bronze medal final at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Chiba, Japan. (AP Photo/Andrew Medichini)

Australia's Kyle Chalmers dives in at the start of a 100-meter freestyle heat at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo. (AP Photo/David J. Phillip)

Water comes off the foot of Jessica Learmonth, of Britain, as she transitions in the rain from the bike to the running leg during the women's individual triathlon at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo. (AP Photo/David Goldman)