China's star sprinter Su Bingtian said on Sunday that he intends to retire after China's 15th National Games, which will be co-hosted by Guangdong, Hong Kong and Macao in November 2025.

A 3D simulation has shown exactly what would happen in a 100-metre race between Usain Bolt and the fastest Asian sprinter of all time.

China's Bingtian Su finishes a yard ahead of Yamagata and Tosin Ogunode in 9.92secs. It is just shy of his 9.91 personal best, but with a Games record and a gold medal, he will not care.