400 Metres Summary | World Athletics Championships, Budapest 2023

First 2 of each heat (Q) plus 2 fastest times (q) qualify to Final

POS	Rank	Heat	BIB	ATHLETE	COUNTRY	RESULTS	ms*
1	1	3	1207	Natalia KACZMAREK	POL	49.50 Q
2	1	1	711	Marileidy PAULINO	DOM	49.54 Q
3	2	3	549	Sada WILLIAMS	BAR	49.58 Q NR
4	2	1	959	Rhasidat ADELEKE	IRL	49.87 Q	.861
5	1	2	1142	Lieke KLAVER	NED	49.87 Q	.868
6	3	1	552	Cynthia BOLINGO	BEL	49.96 q NR
7	4	1	1019	Candice MCLEOD	JAM	50.62 q
8	3	3	1411	Lynna IRBY-JACKSON	USA	50.71
9	4	3	858	Victoria OHURUOGU	GBR	50.74
10	5	3	1255	Andrea MIKLÓS	ROU	50.77
11	2	2	1390	Talitha DIGGS	USA	50.86 Q
12	5	1	661	Evelis AGUILAR	COL	51.07 PB	.064
13	3	2	676	Roxana GÓMEZ	CUB	51.07	.065
14	4	2	861	Ama PIPI	GBR	51.17
15	5	2	1023	Nickisha PRYCE	JAM	51.24
16	6	3	1040	Charokee YOUNG	JAM	51.40
17	6	1	1128	Paola MORÁN	MEX	51.46
18	7	3	538	Susanne GOGL-WALLI	AUT	51.50	.497
19	7	1	698	Lada VONDROVÁ	CZE	51.50	.498
20	6	2	1251	Gabby SCOTT	PUR	51.52
21	8	1	1266	Zenéy GELDENHUYS	RSA	51.54
22	7	2	965	Sharlene MAWDSLEY	IRL	51.78
23	8	3	694	Tereza PETRŽILKOVÁ	CZE	51.94
24	8	2	1112	Modesta Justė MORAUSKAITĖ	LTU	52.15