The Boy's 400 metres hurdles at the 2011 World Youth Championships in Athletics was held at the Stadium Nord Lille Métropole on 6, 7 and 9 July.
Contents
Records
Prior to the competition, the following records were as follows.
During the competition, Egor Kuznetsov lowered the world youth leading to 50.97.
Heats
Qualification rule: first 3 of each heat (Q) plus the 6 fastest times (q) qualified.
Semifinals
Qualification rule: first 2 of each heat (Q) plus the 2 fastest times (q) qualified.
References
2011 World Youth Championships in Athletics – Boys' 400 metres hurdles Wikipedia(Text) CC BY-SA