400 Metres Summary | 8th IAAF World Youth Championships

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

POS	Rank	Heat	BIB	ATHLETE	COUNTRY	RESULTS
1	1	1	894	Ryan Clark	USA	46.33 Q WYL
2	1	2	512	Martin Manley	JAM	46.65 Q PB
3	2	1	839	Batuhan Altintas	TUR	46.72 Q PB
4	3	1	504	Devaughn Baker	JAM	46.78 q
4	1	3	690	Mohamed Nasir Abbas	QAT	46.78 Q PB
6	4	1	563	Alexander Lerionka Sampao	KEN	46.83 q PB
7	2	2	177	Abbas Abubakar Abbas	BRN	46.85 Q PB
8	2	3	561	Ian Mutuku	KEN	46.87 Q
9	3	3	576	Mazen Moutan Al Yassin	KSA	46.99 PB
10	4	3	769	Warren Hazel	SKN	47.07 PB
11	5	3	522	Kaisei Yui	JPN	47.23
11	6	3	633	Omeiza John Akerele	NGR	47.23 PB
11	3	2	138	Janeko Cartwright	BAH	47.23 PB
14	5	1	520	Kakeru Yamaki	JPN	47.38
15	4	2	127	Samuel Baird	AUS	47.48
16	6	1	402	Laurin Walter	GER	47.69 PB
17	7	3	900	Jordan Jimerson	USA	47.97
18	5	2	397	Constantin Schmidt	GER	48.05 PB
19	6	2	487	Giuseppe Leonardi	ITA	48.10 PB
20	7	1	326	Haji Turie	ETH	48.12
21	7	2	637	Samson Oghenewegba Nathaniel	NGR	48.14
22	8	3	416	Dimítrios Vláhas	GRE	48.33
23	8	1	815	Erik Martinsson	SWE	48.90
24	8	2	424	Jason Yaw	GUY	50.39

400 Metres Boys