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	1	170	Amantle MONTSHO	BOT	49.56 Q
2	1	2	379	Christine Ohuruogu	GBR	49.75 Q SB
3	1	3	930	Francena McCorory	USA	49.86 Q PB
4	2	2	916	Natasha Hastings	USA	49.94 Q SB
5	2	3	518	Stephenie Ann MCPHERSON	JAM	49.99 q
6	3	2	514	Novlene Williams-Mills	JAM	50.34 q
7	4	2	482	Libania Grenot	ITA	50.47 SB
8	2	1	751	Kseniya Ryzhova	RUS	50.48 Q
9	3	1	629	Regina George	NGR	50.84 PB
10	3	3	864	Nataliia Pygyda	UKR	51.02 PB
11	5	2	360	Floria GUEI	FRA	51.42 PB
12	4	1	693	Bianca Razor	ROU	51.49 PB
13	4	3	361	Marie Gayot	FRA	51.54 PB
14	6	2	967	Kineke Alexander	VIN	51.64
15	5	1	947	Ashley SPENCER	USA	51.80
16	5	3	310	Aauri Lorena BOKESA	ESP	51.94
17	6	1	476	Chiara Bazzoni	ITA	52.11
18	7	1	616	Tjipekapora Herunga	NAM	52.28
19	7	2	775	Amy Mbacke Thiam	SEN	52.37
20	6	3	632	Omolara OGUNMAKINJU	NGR	52.38
21	7	3	407	Esther Cremer	GER	52.42
22	8	2	585	Agnė ŠERKŠNIENĖ	LTU	52.48
23	8	1	512	Patricia Hall	JAM	52.62
		3	735	Antonina Krivoshapka	RUS	DQ

400 Metres women