Date of Birth: 
Place of Birth: Wenzhou, Zhejiang, China
About Xu Jiayu
- Xu Jiayu (Chinese: ???; born 19 August 1995) is a Chinese competitive swimmer who specializes in the backstroke.
- He is the Olympic Silver medalist (2016 Rio de Janeiro) and twice consecutive world champion (2017 Budapest and 2019 Gwangju) in the 100 meters backstroke.
Read more at Wikipedia