2012 World Junior Championships in Athletics – Men's 400 metres hurdles
The men's 400 metres hurdles at the 2012 World Junior Championships in Athletics was held at the Estadi Olímpic Lluís Companys on 11–13 July. Medalists Records , the existing world junior and championship records were as follows. Results Heats Qualification: first 3 of each heat (Q) plus the 3 fastest times (q) qualified Semi-final Qualification: The first 2 of each heat (Q) and the 2 fastest times (q) qualified Final Participation According to an unofficial count, 52 athletes from 36 countries participated in the event. References External links WJC12 400 metres hurdles schedule 400 metres hurdles 400 metres hurdles at the World Athletics U20 Championships