Watch Ethiopia’s Birke Haylom break the U-20 mile record for women with a time of 4:17.13, just ahead of American Cory Ann McGee, who is now the third-fastest American female miler ever.
Kenya's Nelly Chepchirchir won her heat, maintaining her composure in a scrappy race that saw early frontrunners like Uganda's Winnie Nanyondo and Ethiopia's Birke Haylom running out of steam to ...