400 Metres Summary | 11th IAAF World Championships in Athletics

First 4 in each heat (Q) and the next 4 fastest (q)

POS	Rank	Heat	BIB	ATHLETE	COUNTRY	RESULTS
1	1	4	590	Novlene Williams-Mills	JAM	50.21 Q
2	1	5	477	Christine Ohuruogu	GBR	50.46 Q SB
3	2	5	259	Ilona Usovich	BLR	50.53 Q NR
4	2	4	677	Ana Guevara	MEX	50.85 Q
5	1	1	793	Natalya Antyukh	RUS	50.88 Q
6	3	5	968	Natasha Hastings	USA	51.07 Q
7	2	1	1006	Mary Wineberg	USA	51.25 Q
8	1	2	1003	Deedee Trotter	USA	51.27 Q
9	3	1	589	Shereefa Lloyd	JAM	51.42 Q
10	4	1	473	Lee McConnell	GBR	51.44 Q SB
11	2	2	474	Nicola Sanders	GBR	51.45 Q
12	3	2	556	Joanne Cuddihy	IRL	51.55 Q SB
13	4	2	229	Christine Amertil	BAH	51.55 Q
14	3	4	779	Ionela Târlea	ROU	51.59 Q SB
15	1	3	839	Tatyana Veshkurova	RUS	51.67 Q
16	2	3	592	Shericka Williams	JAM	51.72 Q
17	4	4	360	Aymeé Martínez	CUB	51.74 Q PB
18	4	5	362	Indira Terrero	CUB	51.76 Q
19	3	3	542	Barbara Petráhn	HUN	51.86 Q SB
20	4	3	267	Amantle MONTSHO	BOT	51.87 Q
21	5	4	535	Aliann Pompey	GUY	51.95 q
22	5	5	570	Daniela Reina	ITA	52.02 q SB
23	6	4	703	Christy Ekpukhon Ihunaegbo	NGR	52.05 q
24	6	5	609	Asami Chiba	JPN	52.13 q SB
25	5	2	742	Zuzanna Radecka	POL	52.19
26	7	4	418	Makelesi Batimala	FIJ	52.23 SB
27	5	1	929	Oksana Shcherbak	UKR	52.39
28	5	3	1016	Kineke Alexander	VIN	52.51
29	6	2	700	Folasade Abugan	NGR	52.58
30	7	5	678	Gabriela Medina	MEX	53.16
31	6	1	910	Justine Bayigga	UGA	53.25
32	7	2	269	Maria Laura Almirão	BRA	53.68
33	7	1	704	Joy Eze	NGR	53.83
34	6	3	536	Ginou Etienne	HAI	53.89
35	8	4	435	Solene Désert-Mariller	FRA	54.03
36	8	1	634	Olga Tereshkova Tsykunova	KAZ	54.09
37	8	5	900	Sandrine Thiébaud-Kangni	TOG	54.11
38	7	3	851	Amy Mbacke Thiam	SEN	54.31
39	8	2	532	Hazel Regis-Buckels	GRN	54.78 SB
40	8	3	868	Nawal El Jack	SUD	55.29
41	9	5	894	Temalangeni Dlamini	SWZ	58.27 PB
42	9	2	347	Vera BARBOSA	CPV	58.56

400 Metres women