Australian Kaylee McKeown, who won every backstroke title at the last two Olympics and at the 2023 Worlds, opted not to swim the 50m this year. She owns the world record of 26.86.

In the fastest-ever edition of their rivalry, McKeown once again bested Smith on a major stage Tuesday in Singapore.

Kaylee McKeown recently made her feelings known about defeating the American swimmer Regan Smith for the seventh time in international finals at the World Aquatic Championships.