At the 2016 Olympic Games in Rio she became Olympic champion in the 200-metre butterfly, and also won the bronze medal in the 400-metre individual medley. She previously participated at the 2008 Beijing Olympic Games, where she debuted at 17 years old, and at 2012 London, where she won two silver medals, one in the 200-metre butterfly with a time of 2:05.25 and one in the 800-metre freestyle with a time of 8:18.76.