is a Japanese

swimmer Swimming is an individual or team racing sport that requires the use of one's entire body to move through water. The sport takes place in pools or open water (e.g., in a sea or lake). Competitive swimming is one of the most popular Olympic ...

. She competed in the women's 200 metre butterfly event at the

2016 Summer Olympics The 2016 Summer Olympics ( pt, Jogos Olímpicos de Verão de 2016), officially the Games of the XXXI Olympiad ( pt, Jogos da XXXI Olimpíada) and also known as Rio 2016, was an international multi-sport event held from 5 to 21 August 20 ...

. In April 2017, Hasegawa broke the world junior record in the 200 butterfly with a 2:02.96 at Japanese Nationals. She qualified to represent Japan at the

2020 Summer Olympics The , officially the and also known as , was an international multi-sport event held from 23 July to 8 August 2021 in Tokyo, Japan, with some preliminary events that began on 21 July. Tokyo was selected as the host city during the ...

. When she was 14 years old, Hasegawa competed at the

2014 Junior Pan Pacific Swimming Championships The 2014 Junior Pan Pacific Swimming Championships were held from 27 to 31 August 2014 in Maui, Hawaii, United States.

Hawaii Hawaii ( ; haw, Hawaii or ) is a state in the Western United States, located in the Pacific Ocean about from the U.S. mainland. It is the only U.S. state outside North America, the only state that is an archipelago, and the only stat ...

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

, where she won the gold medal in the 100 metre butterfly with a time of 58.91 seconds, which was 0.23 seconds slower than the Championships record of 58.68 seconds set in

2012 File:2012 Events Collage V3.png, From left, clockwise: The passenger cruise ship Costa Concordia lies capsized after the Costa Concordia disaster; Damage to Casino Pier in Seaside Heights, New Jersey as a result of Hurricane Sandy; People gather ...

by Noemie Thomas of

Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...

, as well as a silver medal in the 4×100 metre medley relay with a final relay time of 4:04.11.Hy-Tek (31 August 2014)
"Meet Results: 2014 Jr Pan Pacific Swimming Championships"
''swmeets.com''. Retrieved 31 October 2022.

References

External links

* 2000 births Living people Japanese female freestyle swimmers Olympic swimmers for Japan Swimmers at the 2016 Summer Olympics Place of birth missing (living people) Asian Games medalists in swimming Asian Games bronze medalists for Japan Swimmers at the 2018 Asian Games Medalists at the 2018 Asian Games Japanese female butterfly swimmers Swimmers at the 2020 Summer Olympics 21st-century Japanese women {{Japan-swimming-bio-stub