400m hurdles (84.0cm) Result | 6th IAAF World Youth Championships

First 4 in each heat (Q)

POS	BIB	ATHLETE	COUNTRY	MARK	Reaction Time
1	167	Norge Sotomayor	CUB	52.15 Q	0.179
2	791	José Reynaldo Bencosme De Leon	ITA	52.24 Q	0.193
3	643	Amadou Ndiaye	SEN	52.32 Q SB	0.350
4	415	Seiya Kato	JPN	52.63 Q	0.174
5	437	Cornelius Kiplangat	KEN	52.97 PB	0.196
6	214	Enrique González	ESP	53.60	0.160
7	231	Rasmus Mägi	EST	53.97	0.220
8	511	José Castañeda	MEX	54.04	0.186

POS	BIB	ATHLETE	COUNTRY	MARK	Reaction Time
1	394	Lorenzo Veroli	ITA	52.50 Q PB	0.229
2	443	Jeremiah Kipkorir Mutai	KEN	52.65 Q PB	0.188
3	427	Dmitriy Koblov	KAZ	52.76 Q PB	0.181
4	559	Ziemowit Dutkiewicz	POL	52.79 Q	0.175
5	519	Juan Stenner	MEX	52.82 SB	0.162
6	184	Juan Pablo Martínez	DOM	53.55 PB	0.285
7	96	Dyson Barnes	CAN	54.73	0.172
8	475	Yousef Karam	KUW	55.10	0.181