Ariarne Titmus of Australia rests after her heat in the women's 200-meter freestyle at the 2020 Summer Olympics, Monday, July 26, 2021, in Tokyo, Japan. (AP Photo/Martin Meissner)

Allison Schmitt of the United States swims in a heat of the women's 200-meter freestyle at the 2020 Summer Olympics, Monday, July 26, 2021, in Tokyo, Japan. (AP Photo/Matthias Schrader)

Katie Ledecky, of the United States, reacts following her swim in a heat of the women's 1500-meter freestyle at the 2020 Summer Olympics, Monday, July 26, 2021, in Tokyo, Japan. (AP Photo/Martin Meissner)

Katinka Hosszu of Hungary removes her goggles following her heat of the women's 200-meter individual medley at the 2020 Summer Olympics, Monday, July 26, 2021, in Tokyo, Japan. (AP Photo/Martin Meissner)

Kate Douglass of the United States swims in a heat during the women's 200-meter individual medley at the 2020 Summer Olympics, Monday, July 26, 2021, in Tokyo, Japan. (AP Photo/Matthias Schrader)

Erica Sullivan, of the United States, swims in a heat during the women's 1500-meter freestyle at the 2020 Summer Olympics, Monday, July 26, 2021, in Tokyo, Japan. (AP Photo/Martin Meissner)

Katinka Hosszu of Hungary swims in a heat during the women's 200-meter individual medley at the 2020 Summer Olympics, Monday, July 26, 2021, in Tokyo, Japan. (AP Photo/Matthias Schrader)