The 24 - year - old Khairil proved his supremacy by beating the 11 other walkers to cross the finish line in 1'31 : 52 .
The 24 - year - old Khairil had challenged his rivals to upstage him .
The 24 - year - old Khairil , who had challenged his rivals to upstage him , proved his supremacy by beating the 11 other walkers to cross the finish line in 1'31 : 52 .