The Chinese Athletics Association (CAA) has vowed to strengthen the supervision of its road-running events after video of Sunday's Beijing half-marathon showed three runners appearing to slow down to allow China's He Jie to overtake them and win.

He won in a time of 1:03:44, a second ahead of Ethiopian Dejene Hailu Bikila and Kenyans Robert Keter and Willy Mnangat, who all tied for second place.