In a thrilling rematch at the 2024 Paris Olympics, Australia's Kaylee McKeown successfully defended her title in the women's 100-meter backstroke, finishing with a time of 57.33 seconds, which set a new Olympic record. Regan Smith of the USA, who previously held the world record, led at the turn but ultimately secured silver with a time of 57.66 seconds. Katharine Berkoff, also from the USA, won bronze with a time of 57.98 seconds. McKeown's victory marks her fourth Olympic gold overall, further solidifying her dominance in backstroke events after sweeping them in Tokyo. Both McKeown and Smith have exchanged world records multiple times in recent years, showcasing their competitive rivalry. McKeown dedicated her win to her late father, emphasizing the emotional significance of her achievements.