Kaylee McKeown became the first swimmer ever to win the 50m, 100m, and 200m backstroke title at the same World Championships, defeating American Regan Smith who took silver for her fourth medal in four races at these Worlds #NBCSports #kayleemckeown #regansmith » Watch the entire 2023 World Championships from Fukuoka, Japan on Peacock: peacocktv.smart.link/v82e9dl56 » Subscribe to NBC Sports: youtube.com/nbcsports?sub... » Watch Live Sports on NBCSports.com: nbcsports.com/live NBC Sports Group serves sports fans 24/7 with premier live events, insightful studio shows, and compelling original programming. NBC Sports is an established leader in the sports media landscape with an unparalleled collection of sports properties that include the Olympics, NFL, Premier League, NASCAR, PGA TOUR, the Kentucky Derby, Tour de France, French Open, IndyCar and many more. Subscribe to our channel for the latest sporting news and highlights! NBC Olympics is responsib...