400 Metres Summary | IAAF World Athletics Championships, DOHA 2019

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

POS	Rank	Heat	BIB	ATHLETE	COUNTRY	RESULTS	ms*
1	1	2	226	Shaunae Miller-Uibo	BAH	49.66 Q
2	1	1	376	Salwa Eid Naser	BRN	49.79 Q
3	2	2	1982	Wadeline Jonathas	USA	50.07 Q PB
4	3	2	1183	Shericka Jackson	JAM	50.10 q
5	2	1	1966	Phyllis Francis	USA	50.22 Q SB
6	1	3	1185	Stephenie Ann McPherson	JAM	50.70 Q SB
7	2	3	1557	Justyna Święty-Ersetic	POL	50.96 Q
8	3	1	1546	Iga Baumgart-Witan	POL	51.02 q PB
9	4	1	1402	Paola Morán	MEX	51.08
10	4	2	233	Sada Williams	BAR	51.31 PB
11	5	2	1435	Lisanne de Witte	NED	51.41
12	6	2	572	Roxana Gómez	CUB	51.56 SB
13	7	2	181	Bendere Oboya	AUS	51.58	.578
14	3	3	1964	Kendall Ellis	USA	51.58	.580
15	4	3	862	Emily Diamond	GBR	51.62 SB
16	5	1	1014	Aliyah Abrams	GUY	51.71
17	6	1	1464	Patience Okon George	NGR	51.89
18	5	3	1312	Mary Moraa	KEN	52.11
19	7	1	797	Déborah Sananes	FRA	52.24
20	8	2	602	Lada Vondrová	CZE	52.25
21	6	3	1467	Favour Ofili	NGR	52.58
22	8	1	868	Laviai Nielsen	GBR	52.94
23	7	3	2017	Shakima Wimbley	USA	1:13.55
		3	315	Galefele Moroko	BOT	DNF