Daiya Seto books 200 butterfly spot at Tokyo Games Sorry, but your browser needs Javascript to use this site. If you're not sure how to activate it, please refer to this site: https://www.enable-javascript.com/ Daiya Seto competes in the men's 200-meter butterfly final at the Japan National Swimming Championships on Tuesday at Tokyo Aquatics Centre. | AFP-JIJI Kyodo Apr 7, 2021 Four-time world champion Daiya Seto qualified for his third event at this summer’s Tokyo Olympics on Tuesday after swimming second in the men’s 200-meter butterfly at the national championships. Seto, who touched the wall in 1 minute, 55.20 seconds, will also swim the 200 and 400 individual medleys at the Olympics after winning both events at the 2019 world championships.