400 Metres Result | IAAF World Junior Championships

First 2 in each heat (Q) and the next 2 fastest (q)

POS	ATHLETE	COUNTRY	MARK	Reaction Time
1	Andrew Pierce	USA	46.32 Q	0.026
2	Fawzi Dahash Al Shammari	KUW	46.40 Q NR	0.014
3	Marc Alexander Scheer	GER	46.57 q PB	0.024
4	Jae-Da Kim	KOR	46.94	0.015
5	Amin Badany Goma'a	EGY	47.60 PB	0.024
6	Zizhou Xu	CHN	47.62	0.027
7	David Naismith	GBR	47.73	0.027
8	Liam Card	CAN	48.03	0.032

POS	ATHLETE	COUNTRY	MARK	Reaction Time
1	Casey Vincent	AUS	46.49 Q	0.018
2	Simon Pierre	TTO	46.66 Q	0.016
3	Alloy Wilson	GBR	46.69 q PB	0.021
4	Ousmane Niang	SEN	46.88 NR	0.026
5	Ruwen Faller	GER	46.96	0.023
6	Fernando Augustin	MRI	47.42 PB	0.021
7	Evanson Ndungu	KEN	47.51	0.014
8	Przemyslaw Dunaj	POL	48.03	0.023

POS	ATHLETE	COUNTRY	MARK	Reaction Time
1	Nduka Awazie	NGR	45.90 Q PB	0.014
2	Tony Berrian	USA	46.56 Q	0.014
3	Tomas Coman	IRL	46.82 NR	0.037
4	Masayuki Okusako	JPN	47.36	0.012
5	Daniel Batman	AUS	47.41	0.015
6	Hamdan Odha Al-Bishi	KSA	47.47	0.018
7	Luís Freitas	POR	48.11	0.017
8	William Hernández	VEN	48.77	0.015