Olympics: U.S. starts off strong in swimming, including its first gold

United States pitcher Cat Osterman reacts after a strikeout during a softball game against Mexico at the 2020 Summer Olympics on Saturday, July 24, 2021, in Yokohama, Japan. (AP Photo/Matt Slocum)

Gold medalist Distria Krasniqi, of Kosovo, reacts during the medal ceremony for women's 48-kg judo at the 2020 Summer Olympics on Saturday, July 24, 2021, in Tokyo, Japan. (AP Photo/Vincent Thian)

Naohisa Takato, of Japan, celebrates after defeating Yang Yung-wei, of Taiwan, in a men's 60-kg judo gold medal match at the 2020 Summer Olympics on Saturday, July 24, 2021, in Tokyo. (AP Photo/Jae C. Hong)

The United States' Rose Lavelle, left, celebrates after scoring a goal during a women's soccer match against New Zealand at the 2020 Summer Olympics on Saturday, July 24, 2021, in Saitama, Japan. (AP Photo/Martin Mejia)

Ahmed Hafnaoui, of Tunisia, celebrates after winning the final of the men's 400-meter freestyle at the 2020 Summer Olympics on Sunday, July 25, 2021, in Tokyo, Japan. (AP Photo/Charlie Riedel)

Gold medalist Chase Kalisz, of the United States, celebrate after the medal ceremony for the the men's 400-meter individual medley at the 2020 Summer Olympics on Sunday, July 25, 2021, in Tokyo, Japan. (AP Photo/Martin Meissner)

TOKYO — Chase Kalisz led a medal haul by the powerhouse American team at the Olympic pool, taking gold Sunday in the men’s 400-meter individual medley.