Serghei Tarnovschi, of Moldova, at the 2020 Summer Olympics, Saturday, Aug. 7, 2021, in Tokyo, Japan. (AP Photo/Lee Jin-man)

Danuta Kozak, of Hungary, reacts after her team finished first in the women's kayak four 500m final at the 2020 Summer Olympics, Saturday, Aug. 7, 2021, in Tokyo, Japan. (AP Photo/Kirsty Wigglesworth)

Lisa Carrington, Teneale Hatton, Alicia Hoskin and Caitlin Regal of New Zealand compete in the women's kayak four 500m semifinal at the 2020 Summer Olympics, Saturday, Aug. 7, 2021, in Tokyo, Japan. (AP Photo/Kirsty Wigglesworth)

Max Rendschmidt, Ronald Rauhe, Tom Liebscher and Max Lemke of Germany step onto the podium for the medal ceremony after their gold medal finish in the men's kayak four 500m final at the 2020 Summer Olympics, Saturday, Aug. 7, 2021, in Tokyo, Japan. (AP Photo/Lee Jin-man)

Germany's Ronald Rauhe, reacts after his kayak four 500-meter final team finished first for the gold medal at the 2020 Summer Olympics, Saturday, Aug. 7, 2021, in Tokyo, Japan. (AP Photo/Lee Jin-man)

Isaquias Queiroz dos Santos, of Team Brazil, holds up his gold medal during the medal ceremony for men's canoe single 1000m final at the 2020 Summer Olympics, Saturday, Aug. 7, 2021, in Tokyo, Japan.(AP Photo/Lee Jin-man)

Ronald Rauhe and Tom Liebscher, of Germany, react to their gold medal finish in the men's kayak four 500m final at the 2020 Summer Olympics, Saturday, Aug. 7, 2021, in Tokyo, Japan. (AP Photo/Darron Cummings)