World aquatics championships: Swimming

World aquatics championships: Swimming

Women's 400-meter individual medley gold medalist Summer McIntosh (R) of Canada hugs silver medalist Mio Narita of Japan at the world aquatics championships in Singapore on Aug. 3, 2025.

World aquatics championships: Swimming

World aquatics championships: Swimming

Mio Narita of Japan reacts after winning silver in the women's 400-meter individual medley final at the world aquatics championships in Singapore on Aug. 3, 2025.

World aquatics championships: Swimming

World aquatics championships: Swimming

Summer McIntosh (C) of Canada poses after winning gold in the women's 400-meter individual medley final at the world aquatics championships in Singapore on Aug. 3, 2025, alongside silver medalists Jenna Forrester (L) of Australia and Mio Narita of Japan.

World aquatics championships: Swimming

World aquatics championships: Swimming

Mio Narita of Japan celebrates after winning silver in the women's 400-meter individual medley final at the world aquatics championships in Singapore on Aug. 3, 2025.

World aquatics championships: Swimming

World aquatics championships: Swimming

Mio Narita (R) of Japan reacts after winning silver in the women's 400-meter individual medley final at the world aquatics championships in Singapore on Aug. 3, 2025.

World aquatics championships: Swimming

World aquatics championships: Swimming

Mio Narita of Japan reacts after winning silver in the women's 400-meter individual medley final at the world aquatics championships in Singapore on Aug. 3, 2025.

World aquatics championships: Swimming

World aquatics championships: Swimming

Mio Narita of Japan reacts after winning silver in the women's 400-meter individual medley final at the world aquatics championships in Singapore on Aug. 3, 2025.

World aquatics championships: Swimming

World aquatics championships: Swimming

Mio Narita of Japan reacts after winning silver in the women's 400-meter individual medley final at the world aquatics championships in Singapore on Aug. 3, 2025.

World aquatics championships: Swimming

World aquatics championships: Swimming

Mio Narita of Japan poses after winning silver in the women's 400-meter individual medley final at the world aquatics championships in Singapore on Aug. 3, 2025.

World aquatics championships: Swimming

World aquatics championships: Swimming

Mio Narita of Japan poses after winning silver in the women's 400-meter individual medley final at the world aquatics championships in Singapore on Aug. 3, 2025.

World aquatics championships: Swimming

World aquatics championships: Swimming

Mio Narita of Japan poses after winning silver in the women's 400-meter individual medley final at the world aquatics championships in Singapore on Aug. 3, 2025.

World aquatics championships: Swimming

World aquatics championships: Swimming

Mio Narita of Japan celebrates after winning silver in the women's 400-meter individual medley final at the world aquatics championships in Singapore on Aug. 3, 2025.

World aquatics championships: Swimming

World aquatics championships: Swimming

Mio Narita of Japan swims to silver in the women's 400-meter individual medley final at the world aquatics championships in Singapore on Aug. 3, 2025.

World aquatics championships: Swimming

World aquatics championships: Swimming

Mio Narita of Japan swims to silver in the women's 400-meter individual medley final at the world aquatics championships in Singapore on Aug. 3, 2025.

World aquatics championships: Swimming

World aquatics championships: Swimming

Mio Narita of Japan swims to silver in the women's 400-meter individual medley final at the world aquatics championships in Singapore on Aug. 3, 2025.

World aquatics championships: Swimming

World aquatics championships: Swimming

Mio Narita of Japan swims to silver in the women's 400-meter individual medley final at the world aquatics championships in Singapore on Aug. 3, 2025.

World aquatics championships: Swimming

World aquatics championships: Swimming

Mio Narita of Japan swims to silver in the women's 400-meter individual medley final at the world aquatics championships in Singapore on Aug. 3, 2025.

World aquatics championships: Swimming

World aquatics championships: Swimming

Mio Narita of Japan swims to silver in the women's 400-meter individual medley final at the world aquatics championships in Singapore on Aug. 3, 2025.

Paris Olympics: Swimming

Paris Olympics: Swimming

Canada's Summer McIntosh (front) and Japan's Mio Narita compete in the women's 400-meter individual medley final at the Paris Olympics on July 29, 2024, at La Defense Arena in Nanterre, near Paris.

Paris Olympics: Swimming

Paris Olympics: Swimming

Japan's Mio Narita swims the freestyle leg in the women's 400-meter individual medley at the Paris Olympics on July 29, 2024, at La Defense Arena in Nanterre, near Paris.

Paris Olympics: Swimming

Paris Olympics: Swimming

Japan's Mio Narita swims the freestyle leg in the women's swimming 400-meter individual medley at the Paris Olympics on July 29, 2024, at La Defense Arena in Nanterre, near Paris.

Paris Olympics: Swimming

Paris Olympics: Swimming

Japan's Mio Narita swims the backstroke leg in the women's 400-meter individual medley at the Paris Olympics on July 29, 2024, at La Defense Arena in Nanterre, near Paris.

Paris Olympics: Swimming

Paris Olympics: Swimming

Japan's Mio Narita swims the butterfly leg in the women's 400-meter individual medley at the Paris Olympics on July 29, 2024, at La Defense Arena in Nanterre, near Paris.

(PARIS2024) FRANCE-PARIS-OLY-SWIMMING

(PARIS2024) FRANCE-PARIS-OLY-SWIMMING

(240729) -- PARIS, July 29, 2024 Photo by Xinhua/ABACAPRESS.COM) -- Narita Mio of Japan reacts during the women's 400m individual medley final of swimming at the Paris 2024 Olympic Games in Paris, France, July 29, 2024. Photo by Xinhua/ABACAPRESS.COM/Luo Yuan)

(SP)CHINA-HANGZHOU-ASIAN GAMES-SWIMMING (CN)

(SP)CHINA-HANGZHOU-ASIAN GAMES-SWIMMING (CN)

(230927) -- HANGZHOU, Sept. 27, 2023 (Xinhua) -- Gold medalist Yu Yiting (C) of China, silver medalist Tanigawa Ageha (L) of Japan, bronze medalist Narita Mio of Japan attend the awarding ceremony for the Women's 400m Individual Medley Final of Swimming at the 19th Asian Games in Hangzhou, east China's Zhejiang Province, Sept. 27, 2023. (Xinhua/Huang Zongzhi)

(SP)CHINA-HANGZHOU-ASIAN GAMES-SWIMMING (CN)

(SP)CHINA-HANGZHOU-ASIAN GAMES-SWIMMING (CN)

(230927) -- HANGZHOU, Sept. 27, 2023 (Xinhua) -- Gold medalist Yu Yiting (C) of China, silver medalist Tanigawa Ageha (L) of Japan, bronze medalist Narita Mio of Japan attend the awarding ceremony for the Women's 400m Individual Medley Final of Swimming at the 19th Asian Games in Hangzhou, east China's Zhejiang Province, Sept. 27, 2023. (Xinhua/Du yu)

World aquatics championships

World aquatics championships

Mio Narita of Japan competes in the women's 400-meter individual medley final at the world aquatics championships on July 30, 2023, at Marine Messe Fukuoka in the southwestern Japan city of Fukuoka.

World aquatics championships

World aquatics championships

Mio Narita (top) of Japan competes in the women's 400-meter individual medley final at the world aquatics championships on July 30, 2023, at Marine Messe Fukuoka in the southwestern Japan city of Fukuoka.

World aquatics championships

World aquatics championships

Mio Narita of Japan competes in the women's 400-meter individual medley final at the world aquatics championships on July 30, 2023, at Marine Messe Fukuoka in the southwestern Japan city of Fukuoka.

World aquatics championships

World aquatics championships

Mio Narita of Japan competes in the women's 400-meter individual medley final at the world aquatics championships on July 30, 2023, at Marine Messe Fukuoka in the southwestern Japan city of Fukuoka.

Swimming: Japan national championships

Swimming: Japan national championships

Reigning Olympic champion Yui Ohashi walks poolside after finishing second in the women's 200-meter individual medley final during the national swimming championships at the Tokyo Aquatics Center on April 4, 2023. Screen shows gold medalist Mio Narita speaking in a post-race interview.

Swimming: Japan national championships

Swimming: Japan national championships

Japanese 16-year-old Mio Narita competes in the women's 200-meter individual medley final during the national swimming championships at the Tokyo Aquatics Center on April 4, 2023.