Chalmers won in 47.15 seconds and Jack Alexy of the United States surprised a stacked field to take silver, 0.16 seconds behind the winner. Frenchman Maxime Grousset grabbed bronze ahead of China's Pan Zhanle. McIntosh earlier cruised to the women's 200m butterfly title, capturing gold in a time of 2:04.06 ahead of Australian Elizabeth Dekkers. Australia's triple Olympic gold medallist Kaylee McKeown then won the women's 50m backstroke crown after claiming the title over 100m earlier this week. The 22-year-old came home in 27.08 seconds ahead of American Smith who went 27.11 while Briton Lauren Cox had to settle for bronze, finishing 0.12 seconds behind the champion.

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Persons: Kyle Chalmers, Summer McIntosh, Chalmers, Jack Alexy, Frenchman Maxime Grousset, Romania's David Popovici, Matthew Richards, Popovici, McIntosh, Elizabeth Dekkers, Regan Smith, Australia's, Kaylee McKeown, American Smith, Briton Lauren Cox, Frenchman Leon Marchand, Ryan Lochte's, Carson Foster, Daiya, Shrivathsa Sridhar, Ken Ferris Organizations: Marine Messe Fukuoka Hall, United States, Thomson Locations: FUKUOKA, Japan, United States, China's, Budapest, Shanghai, U.S, Australia, Britain, Bengaluru