The boys' 400 metres at the 2015 World Youth Championships in Athletics was held at the Estadio Olímpico Pascual Guerrero in Cali, Colombia from 15 to 17 July 2015.
Christopher Taylor of Jamaica won the event. His time of 45.27 seconds was a world age-15 best.
Records Prior to the competition, the following records were as follows. World Youth Best45.14Santiago, Chile2 September 1995Championship Record45.24Bressanone, Italy 10 July 2009World Youth Leading45.55Kingston, Jamaica13 June 2015
Results Round 1 First 3 in each heat (Q) and the next 6 fastest (q) advance to the semifinals. Rank Heat Name Nationality Time Note 1 6 46.26 Q 2 2 46.27 Q, 3 2 46.30 Q 4 6 46.67 Q, 5 5 46.98 Q 6 5 47.15 Q 7 4 47.17 Q 8 2 47.27 Q 9 3 47.35 Q 10 1 47.46 Q 11 5 47.47 Q 12 3 47.57 Q 13 5 Xu Haoran 47.59 q, 14 3 47.69 Q 15 6 47.72 Q 16 2 47.74 q, 17 5 47.88 q, 18 6 47.95 q 19 1 Wu Yuang 48.02 Q 20 5 48.07 q 21 2 48.09 q, 22 1 48.30 Q, 23 1 48.31 24 3 48.38 24 2 48.38 26 4 48.41 Q 27 4 48.44 Q, 28 5 48.45 29 4 48.54 29 6 48.54 29 2 48.54 32 6 48.55 33 1 48.59 33 3 48.59 33 5 48.59 36 4 48.72 37 1 48.85 38 1 49.02 39 3 49.09 40 6 49.12 41 2 49.30 42 4 49.34 43 3 49.49 44 4 50.18 45 6 Lou Wai Un 51.75 46 1 52.01 3 4
Semifinal First 2 in each heat (Q) and the next 2 fastest (q) advance to the final. Rank Heat Name Nationality Time Note 1 1 45.30 Q, 2 1 45.93 Q 3 1 46.53 q 4 3 46.76 Q 5 2 46.77 Q 6 2 46.78 Q, 7 1 46.85 q, 8 3 46.97 Q 9 3 47.03 10 2 47.41 11 1 Xu Haoran 47.44 12 1 47.53 13 2 47.85 14 2 47.92 15 3 Wu Yuang 48.11 16 1 48.34 17 3 48.59 17 2 48.59 19 3 48.84 20 2 49.01 21 3 49.26 22 2 49.86 23 1 49.93 3
Final
Rank Name Nationality Time Note 45.27 45.46 45.96 4 45.99 5 46.03 6 46.29 7 46.57 8 47.54
References