400 Metres Summary | 15th IAAF World Championships

First 3 in each heat (Q) and the next 6 fastest (q)

POS	Rank	Heat	BIB	ATHLETE	COUNTRY	RESULTS
1	1	2	715	Yousef Ahmed Masrahi	KSA	43.93 Q AR
1	2	2	631	Rusheen McDonald	JAM	43.93 Q NR
3	3	2	243	Isaac Makwala	BOT	44.19 Q
4	1	6	857	Wayde van Niekerk	RSA	44.42 Q
5	1	1	1067	David Verburg	USA	44.43 Q
6	4	2	521	Martyn Rooney	GBR	44.45 q PB
7	1	3	1047	LaShawn Merritt	USA	44.51 Q
8	2	1	938	Machel Cedenio	TTO	44.54 Q
8	2	6	943	Renny Quow	TTO	44.54 Q SB
10	1	4	580	Kirani James	GRN	44.56 Q
11	2	4	410	Luguelín Santos	DOM	44.62 Q
12	3	6	1049	Bryshon Nellum	USA	44.65 Q PB
13	3	1	217	Jonathan Borlée	BEL	44.67 Q SB
14	4	6	189	Chris Brown	BAH	44.68 q
15	4	1	632	Peter Matthews	JAM	44.69 q PB
16	5	2	759	Liemarvin Bonevacia	NED	44.72 q NR
17	2	3	627	Javon Francis	JAM	44.83 Q
18	3	4	940	Lalonde Gordon	TTO	44.97 Q
19	3	3	216	Kevin Borlée	BEL	45.01 Q SB
20	4	3	204	Michael Mathieu	BAH	45.07 q
21	5	3	362	Nery Brenes	CRC	45.08 q
22	6	2	395	Pavel Maslák	CZE	45.16
23	4	4	245	Onkabetse Nkobolo	BOT	45.17 PB
24	1	5	520	Rabah Yousif	GBR	45.24 Q
25	5	1	869	Pavel Ivashko	RUS	45.25 PB
25	5	6	583	Winston George	GUY	45.25 NR
27	2	5	194	Steven Gardiner	BAH	45.26 Q
28	6	1	897	Luka Janežič	SLO	45.28 NR
28	7	1	1076	Alberth Bravo	VEN	45.28
30	5	4	252	Hederson Estefani	BRA	45.36 SB
31	6	6	253	Hugo de Sousa	BRA	45.42 SB
32	6	4	515	Jarryd Dunn	GBR	45.49
33	3	5	1050	Vernon Norwood	USA	45.53 Q
34	4	5	487	Mame-Ibra Anne	FRA	45.55
35	7	6	407	Gustavo Cuesta	DOM	45.59
36	5	5	280	Abbas Abubakar Abbas	BRN	45.64
37	6	3	651	Yuzo Kanemaru	JPN	45.65
38	7	3	238	Aliaksandr Linnik	BLR	45.79
39	7	4	977	Vitaliy Butrym	UKR	45.88
40	6	5	692	Alphas Leken Kishoyian	KEN	46.02
41	8	1	581	Bralon Taplin	GRN	46.27
42	8	3	332	Zhongze Guo	CHN	46.42
43	7	5	721	Mohamed Khouaja	LBA	46.50 SB
44	8	5	847	Berend Koekemoer	RSA	46.52
		2	608	Donald Blair-Sanford	ISR	DNS

400 Metres men