400 Metres Result | 12th IAAF World Indoor Championships

First 3 in each heat (Q)

POS	BIB	ATHLETE	COUNTRY	MARK	Reaction Time
1	198	Olesya Zykina	RUS	51.75 Q	0.315
2	244	Antonina Yefremova	UKR	51.79 Q PB	0.228
3	261	Moushaumi Robinson	USA	51.85 Q PB	0.248
4	277	Racheal Nachula	ZAM	53.30 NR	0.317
5	72	Makelesi Batimala	FIJ	54.23	0.275
	148	Christy Ekpukhon Ihunaegbo	NGR	DQ

POS	BIB	ATHLETE	COUNTRY	MARK	Reaction Time
1	193	Natalya Nazarova	RUS	51.62 Q	0.287
2	269	Shareese Woods	USA	51.87 Q PB	0.193
3	173	Angela Morosanu	ROU	52.83 Q SB	0.273
4	49	Zuzana Hejnová	CZE	53.16	0.142
5	14	Amantle Montsho	BOT	53.21	0.266
6	240	Nataliia Pygyda	UKR	53.33	0.173