400 Metres Summary | 12th IAAF World Junior Championships

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

POS	Rank	Heat	BIB	ATHLETE	COUNTRY	RESULTS
1	1	3	844	O'Neal Wilder	USA	46.08 Q
2	1	1	335	Kirani JAMES	GRN	46.55 Q
3	2	3	19	Kurt Mulcahy	AUS	46.56 Q
4	1	2	304	Niklas Zender	GER	46.78 Q
5	3	3	91	Tyler Daniel Harper	CAN	46.81 q PB
6	2	1	809	Marcus Boyd	USA	46.88 Q
6	2	2	368	Brian GREGAN	IRL	46.88 Q
8	4	3	274	Jordan McGrath	GBR	47.13 q
9	3	2	272	Nigel Levine	GBR	47.14
10	3	1	143	Petr Vanek	CZE	47.22
11	4	2	751	Zwede Hewitt	TTO	47.36
12	5	2	658	Vladimir Krasnov	RUS	47.38
13	4	1	344	Marcell Deák Nagy	HUN	47.43
14	5	1	488	Janis Leitis	LAT	47.51
15	5	3	334	Rondell Bartholomew	GRN	47.60
16	6	2	446	Silvester Kirwa Meli	KEN	47.73
17	6	3	619	Juan Carlos Vega	PUR	47.94
18	7	2	328	Pétros Kiriakídis	GRE	48.03
19	6	1	693	Awadelkarim Makki	SUD	48.21
20	7	3	553	Mauritz Kåshagen	NOR	48.22
21	8	1	424	Hideyuki Hirose	JPN	48.30
21	7	1	38	Juan Lewis	BAH	48.30
23	9	1	428	Akihiro Urano	JPN	48.34
24	8	3	2	Curtis Kock	AHO	48.36
		2	469	Ismail M.H Alsabani	KSA	DQ

400 Metres men