13-year-old Yu Zidi of north China's Hebei Province won the women's 200m individual medley at the country's 15th National Games on Nov. 11, clocking a new Asian record time of two minutes 7.41 seconds.
In May, Yu secured a berth for the World Championships at Shenzhen after finishing second in the event at the National Swimming Championships in 2:10.63, the fastest time ever by a 12-year-old in the discipline.
At the World Championships in Singapore in July, Yu further improved her personal best to 2:09.21 in the final.
The previous Asian record of 2:07.57 was set by Ye Shiwen at the 2012 London Olympics.