Xu Jiayu, born in 1995, comes from Wenzhou, Zhejiang Province.

In October 2011, Xu Jiayu won the third place in men’s 100m backstroke at the 7th National Intercity Games, the second place in men’s 200m backstroke at the 2012 National Swimming Championships, the gold medal in men’s 100m backstroke at the Dubai Asian Swimming Championships in 2012, and the gold medal in men’s 200m backstroke and 4×100 medley at the 2013 National Swimming Championships. In 2013, he won gold medals in men’s 100m and 200m backstroke at the 12th National Games held in Liaoning..

Achievements at the 2014 Incheon Asian Games:

Gold medal in men’s 4×100m medley relay;

Silver medal in men’s 100m backstroke;

Silver medal in men’s 200m backstroke;

Bronze medal in men’s 50m backstroke.