The event programme mirrored that of the previous IAAF World Youth Championships in Athletics, with the exception of a boy's decathlon, rather than the octathlon.
Hong Kong's Chan Pui Kei was the only other athlete to claim three medals, being twice runner-up to Feng individually and taking third in the relay.
Guo Pei Yu was a minor medallist in both shot put and discus throw events.
Liu Zhekai was the boy's javelin throw winner there and on the girls side Niu Chunge and Gong Luying also won the pole vault and long jump titles, respectively.
Among the world minor medallists were boy's hammer thrower Damneet Singh and Taipei hurdler Lu Hao-hua.