This event took place on 31/07/2021 at the Tokyo Aquatics Centre, Tokyo. It includes the Men's 100m Butterfly, the Women's 200m Backstroke, the Women's 800m... Freestyle, the Mixed 4 x 100m Medley Relay Finals and their Victory Ceremonies as well as the Men's and Women's 50m Freestyle Semifinals. Dressel (USA) claimed Gold in the Men's 100m Butterfly, McKeown (AUS) in the Women's 200m Backstroke, Ledecky (USA) in the Women's 800m Freestyle and Great Britain in the Mixed 4 x 100m Medley Relay.