China’s Yu Zidi (R) celebrates alongside second-placed USA's Regan Smith on the podium after winning the women's 200m butterfly final at the China Open Swimming Championships in Shenzhen, in China’s southerm Guangdong province on March 19, 2026. Chinese swimming sensation Yu Zidi added to her fast-growing reputation as the 13-year-old phenomenon beat multiple Olympic medallist Regan Smith in the women's 200m butterfly in a personal-best time in Shenzhen. Pic/AFP