Kate Douglass wins the 200 breaststroke for the U.S.; Netherlands, China, Hungary and Britain also claim victories heading into a captivating final two days.

Yu Zidi, a 12-year-old Chinese athlete, has become the youngest swimmer in history to win a medal at the World Aquatics Championships. China won bronze in the 4x200m freestyle relay at the Championships in Singapore, and while Yu did not swim in Thursday’s final, she qualified for a medal after swimming a leg in the heats earlier in the day.

Chinese swimmer Yu Zidi, 12, has become the youngest medallist in World Aquatics Championships history after earning relay bronze in Singapore. The youngster, who will not turn 13 until October, swam in the preliminary rounds of the women’s 4x200m freestyle relay.