400 Metres Result | 9th IAAF World Youth Championships 2015

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

POS	BIB	ATHLETE	COUNTRY	MARK	Reaction Time
1	1055	Kyra Constantine	CAN	52.88 Q PB	0.197
2	1213	Catherine Reid	GBR	53.20 Q PB	0.164
3	1553	Symone Mason	USA	53.48 q	0.195
4	1384	Janet Richard	MLT	55.37	0.202
5	1363	Erika Kruminaité	LTU	55.51	0.189
6	1126	Dora Filipovic	CRO	55.68 SB	0.204
7	1319	Rin Aoki	JPN	55.69	0.176
8	1395	Mari Drabløs	NOR	56.33	0.194

POS	BIB	ATHLETE	COUNTRY	MARK	Reaction Time
1	1549	Lynna Irby	USA	52.77 Q PB	0.170
2	1216	Hannah Williams	GBR	53.52 Q PB	0.217
3	1422	Natalia Kaczmarek	POL	54.25 PB	0.174
4	1528	Ivanna Avramchuk	UKR	54.43	0.185
5	1028	Dreshanae Rolle	BAH	55.58	0.206
6	1252	Alexía Polikráti	GRE	55.68	0.168
7	1297	Alessia Tirnetta	ITA	55.91	0.192
8	1257	Meleni Rodney	GRN	56.36	0.191

POS	BIB	ATHLETE	COUNTRY	MARK	Reaction Time
1	1046	Salwa Eid Naser	BRN	52.99 Q	0.228
2	1129	Roxana Gómez	CUB	53.61 Q	0.207
3	1443	Andrea Miklós	ROU	53.93 q PB	0.158
4	1531	Dzhois Koba	UKR	54.26 PB	0.219
5	1069	Victoria Tachinski	CAN	54.77	0.229
6	1281	Rebecca Borga	ITA	56.56	0.173
7	1348	Purity Joy Chepkoech	KEN	57.87	0.250
	1261	Avon Samuels	GUY	DQ R163.3(a)	0.207