Gold medalist Lydia Jacoby, centre, of the United States, stands with silver medalist Tatjana Schoenmaker, left, of South Africa, and bronze medalist Lilly King, of the United States, after the final of the women's 100-meter breaststroke at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Matthias Schrader)

Lydia Jacoby, of the United States, poses with the gold medal after winning the final of the women's 100-meter breaststrokeat the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Petr David Josek)

Gold medalist Lydia Jacoby of the United States stands on the podium after receiving her gold medal in the final of the women's 100-meter breaststroke at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Matthias Schrader)

Lydia Jacoby of the United States, sees the results after winning the final of the women's 100-meter breaststroke at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Martin Meissner)

Lydia Jacoby, of the United States, after receiving her gold medal in the final of the women's 100-meter breaststrokeat the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Morry Gash)

Gold medalist Lydia Jacoby, centre, of the United States, stands with silver medalist Tatjana Schoenmaker, left, of South Africa, and bronze medalist Lilly King, of the United States, after the final of the women's 100-meter breaststroke at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Matthias Schrader)

Lydia Jacoby of the United States swims in the final of the women's 100-meter breaststroke at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Martin Meissner)

Gold medalist Lydia Jacoby, left, of the United States, is embraced by bronze medalist and compatriot Lilly King after winning the final of the women's 100-meter breaststroke at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Matthias Schrader)

Gold medalist Lydia Jacoby of the United States celebrates on the podium after the final of the women's 100-meter breaststroke at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan.(AP Photo/Matthias Schrader)

Lydia Jacoby, of the United States, celebrates after winning the gold in the final of the women's 100-meter breaststroke at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. King won the bronze. (AP Photo/Morry Gash)

Lydia Jacoby of the United States waves after winning the final of the women's 100-meter breaststroke at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Matthias Schrader)

Lydia Jacoby, of the United States, is congratulated by teammate Lilly King after winning the gold in the final of the women's 100-meter breaststroke at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. King won the bronze. (AP Photo/Morry Gash)

Lydia Jacoby of the United States leans on a lane rope after winning the final of the women's 100-meter breaststroke at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. (AP Photo/Matthias Schrader)

Lydia Jacoby, of the United States, reacts after winning the gold in the final of the women's 100-meter breaststroke at the 2020 Summer Olympics, Tuesday, July 27, 2021, in Tokyo, Japan. King won the bronze. (AP Photo/Morry Gash)