Cyclists compete during the cycling track men's omnium at the 2nd Youth Games of the People's Republic of China in Taiyuan, north China's Shanxi Province, on Aug. 9, 2019. (Photo: Xinhua)

Cyclists compete during the cycling track men's omnium at the 2nd Youth Games of the People's Republic of China in Taiyuan, north China's Shanxi Province, on Aug. 9, 2019. (Photo: Xinhua)

Cyclists compete during the cycling track men's omnium at the 2nd Youth Games of the People's Republic of China in Taiyuan, north China's Shanxi Province, on Aug. 9, 2019. (Photo: Xinhua)

A cyclist competes during the cycling track men's omnium at the 2nd Youth Games of the People's Republic of China in Taiyuan, north China's Shanxi Province, on Aug. 9, 2019. (Photo: Xinhua)

Cyclists compete during the cycling track men's omnium at the 2nd Youth Games of the People's Republic of China in Taiyuan, north China's Shanxi Province, on Aug. 9, 2019. (Photo: Xinhua)

Cyclists compete during the cycling track men's omnium at the 2nd Youth Games of the People's Republic of China in Taiyuan, north China's Shanxi Province, on Aug. 9, 2019. (Photo: Xinhua)

Cyclists compete during the cycling track men's omnium at the 2nd Youth Games of the People's Republic of China in Taiyuan, north China's Shanxi Province, on Aug. 9, 2019. (Photo: Xinhua)

Cyclists compete during the cycling track men's omnium at the 2nd Youth Games of the People's Republic of China in Taiyuan, north China's Shanxi Province, on Aug. 9, 2019. (Photo: Xinhua)