Overview

• Léon Marchand set a new 200-meter individual medley world record of 1:52.61 in Wednesday’s semifinals, erasing a 14-year mark held by Ryan Lochte.
• Katie Ledecky claimed gold in the women’s 1500-meter freestyle with a time of 15:26.44 to further cement her distance supremacy.
• Olympic champion David Popovici won the men’s 200-meter freestyle in 1:43.53, holding off American Luke Hobson in the final meters.
• Spain’s 17-year-old Luca Hoek broke his national record in the 100-meter freestyle (48.23) to reach the semifinals, and 12-year-old Yu Zidi advanced to her second championship final.
• World Aquatics has launched an age-eligibility review following Yu Zidi’s performance, and the U.S. team has continued competing despite a gastroenteritis outbreak at its Thailand training camp.