400m hurdles (84.0cm) 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	3	516	Okeen Williams	JAM	50.53 Q WYL
2	1	1	227	Yang Wang	CHN	50.72 Q WYL
3	2	1	911	Kenneth SELMON	USA	50.95 Q
4	2	3	899	Marlon Humphrey	USA	50.96 Q
5	3	3	517	Takumu Furuya	JPN	51.00 q PB
6	3	1	554	Geofrey Kipkoech Cheruiyot	KEN	51.01 q PB
7	1	2	515	Marvin Williams	JAM	51.31 Q PB
8	2	2	684	Derick Diaz	PUR	51.95 Q PB
9	4	1	533	Naoya Okubo	JPN	52.03 PB
10	3	2	596	Avotriniaina Rakotoarimiandry	MAD	52.11 PB
11	5	1	465	Matteo Beria	ITA	52.18 PB
12	4	3	316	Ryan Wallis	ESP	52.21 PB
13	5	3	117	Rai BENJAMIN	ANT	52.36 PB
14	4	2	467	Giuseppe Biondo	ITA	52.45
15	5	2	297	Javier Delgado	ESP	52.84
16	6	2	450	Mahmoud Reza Moshtagh	IRI	52.88 PB
17	7	2	837	Mohamed Fares JLASSI	TUN	52.96
18	6	3	716	Hanno Coetzer	RSA	53.60
19	6	1	139	Xavier Coakley	BAH	53.78
20	7	3	694	Khalid Mohammed Al-Shahrani	QAT	54.26
21	7	1	745	Vladislav Omelchenko	RUS	54.30
22	8	3	186	Daniel Brady	CAN	54.78
23	8	1	836	Raouf Jedid	TUN	55.30
24	8	2	627	Divan Rossouw	NAM	55.75

400m hurdles (84.0cm) Boys