400 Metres Summary | 14th IAAF World Championships

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

POS	Rank	Heat	BIB	ATHLETE	COUNTRY	RESULTS
1	1	2	1150	LaShawn Merritt	USA	44.60 Q
2	1	1	744	Yousef Ahmed Masrahi	KSA	44.61 Q NR
3	2	1	1148	Tony MCQUAY	USA	44.66 Q SB
4	1	3	560	Kirani JAMES	GRN	44.81 Q
5	2	3	349	Luguelín SANTOS	DOM	44.83 Q
6	3	3	330	Pavel MASLÁK	CZE	44.84 q NR
7	2	2	176	Jonathan BORLÉE	BEL	44.85 Q SB
8	3	1	210	Anderson FREITAS HENRIQUES	BRA	44.95 q PB
9	4	1	175	Kevin BORLÉE	BEL	45.03
10	3	2	151	Chris Brown	BAH	45.18 SB
11	4	3	1055	Jarrin Solomon	TTO	45.43
12	4	2	1054	Deon LENDORE	TTO	45.47
13	5	3	1129	Arman Hall	USA	45.54
14	6	3	488	Nigel Levine	GBR	45.60
15	5	1	642	Javon Francis	JAM	45.62
16	5	2	612	Matteo GALVAN	ITA	45.69
17	7	3	637	Javere Bell	JAM	45.77
18	6	2	647	Omar Johnson	JAM	45.89
18	6	1	341	Nick EKELUND-ARENANDER	DEN	45.89
20	7	2	345	Gustavo Cuesta	DOM	45.93
21	7	1	597	Brian GREGAN	IRL	45.98
22	8	2	1198	José Meléndez	VEN	46.22
23	8	1	666	Yuzo Kanemaru	JPN	46.28
24	8	3	306	Nery Brenes	CRC	46.34

400 Metres men