Overview

• Summer McIntosh claimed the women’s 400m freestyle title in 3:56.26 to relegate five-time world champion Katie Ledecky to bronze in 3:58.49
• The Canadian holds world records in the 200m and 400m individual medley and the 400m freestyle after shattering those marks in June
• Twelve-year-old Yu Zidi became the youngest finalist in the women’s 200m individual medley with a personal best of 2:10.22 and will swim the final on Monday
• Germany’s Lukas Mertens secured the men’s 400m freestyle crown in 3:42.35, edging Australia’s Samuel Short by just two centiseconds
• Performances from McIntosh, Yu and Mertens highlight a broadening international field and a generational power shift at the world championships