2016 IAAF World U20 Championships – Women's 400 metres

Heat 1

Heat 2

Heat 3

Qualification: First 3 of each heat (Q) and the 6 fastest times (q) qualified for the semifinals.[1]

Rank	Heat	Name	Nationality	Time	Note
1	4	Tiffany James	Jamaica	52.98	Q
2	1	Maureen Nyatichi Thomas	Kenya	53.04	Q
3	5	Lynna Irby	United States	53.08	Q
4	3	Roxana Gómez	Cuba	53.16	Q
5	2	Junelle Bromfield	Jamaica	53.21	Q
6	1	Natassha McDonald	Canada	53.62	Q, PB
7	1	Hendrikje Richter	Germany	53.67	Q
8	5	Jessica Thornton	Australia	53.70	Q
9	2	Dzhois Koba	Ukraine	53.74	Q
10	3	Hannah Williams	Great Britain	53.85	Q
11	6	Paola Morán	Mexico	53.96	Q
12	2	Karrington Winters	United States	54.12	Q
13	6	Zdenka Seidlová	Czech Republic	54.13	Q, SB
14	6	Rebecca Borga	Italy	54.41	Q
15	5	Ashlan Best	Canada	54.47	Q
16	2	Jeanelle Griesel	South Africa	54.47	q
17	1	Shaquania Dorsett	Bahamas	54.55	q
18	6	Vijona Kryeziu	Kosovo	54.67	q, SB
19	6	Lily Beckford	Great Britain	54.70	q
20	4	Ivanna Avramchuk	Ukraine	54.71	Q
21	5	Hannah Mergenthaler	Germany	54.75	q
22	3	Natalia Kaczmarek	Poland	54.75	Q
23	1	Erika Krūminaitė	Lithuania	54.89	q, SB
24	6	Mollie O'Reilly	Ireland	54.92
25	4	Jenna Bromell	Ireland	54.98	Q
26	3	Chelsea Zoller	Switzerland	55.00
27	5	Tarika Moses	British Virgin Islands	55.04
28	2	Dora Filipović	Croatia	55.16
29	4	Haruko Ishizuka	Japan	55.20
30	1	Myia Dorsey	United States Virgin Islands	55.25
31	1	Galefele Moroko	Botswana	55.38
32	6	Molly Blakey	Australia	55.49
33	5	Daniela Tassani	Italy	55.62
34	3	Zinash Tesfaye	Ethiopia	55.75
35	3	Þórdís Eva Steinsdóttir	Iceland	56.06
36	4	Liang Nuo	China	56.08
37	4	Eliana Chávez	Colombia	56.96
38	5	Jane Njoki Theuri	Kenya	57.13
39	5	María Simancas	Venezuela	57.51
40	1	Kalliopi Kountouri	Cyprus	59.11
	2	Mahilet Fikre	Ethiopia	DQ	R163.3(a)[2]
	3	Jisna Mathew	India	DQ	R163.3(a)[2]
	2	Shafiqua Maloney	Saint Vincent and the Grenadines	DNS
	3	Mariette Agbety	Benin	DNS
	4	Praise Oghenefejiro Idamadudu	Nigeria	DNS
	4	Artesha Richardson	Anguilla	DNS
	6	Yinka Ajayi	Nigeria	DNS

Semifinal 2

Semifinal 3

Qualification: First 2 of each heat (Q) and the 2 fastest times (q) qualified for the final.[3]

Rank	Heat	Name	Nationality	Time	Note
1	3	Tiffany James	Jamaica	51.77	Q
2	1	Lynna Irby	United States	51.90	Q, SB
3	2	Jessica Thornton	Australia	52.12	Q, PB
4	2	Junelle Bromfield	Jamaica	52.18	Q
5	1	Roxana Gómez	Cuba	52.26	Q, PB
6	2	Maureen Nyatichi Thomas	Kenya	52.52	q
7	1	Dzhois Koba	Ukraine	52.79	q, PB
8	1	Hannah Williams	Great Britain	52.80	PB
9	2	Karrington Winters	United States	52.80	PB
10	3	Natassha McDonald	Canada	53.06	Q, PB
11	3	Paola Morán	Mexico	53.08
12	1	Ashlan Best	Canada	53.27	PB
13	3	Jeanelle Griesel	South Africa	53.68	SB
14	3	Hendrikje Richter	Germany	53.85
15	1	Rebecca Borga	Italy	53.93
16	2	Zdenka Seidlová	Czech Republic	53.95	PB
17	1	Hannah Mergenthaler	Germany	54.13
18	2	Natalia Kaczmarek	Poland	54.32
19	3	Ivanna Avramchuk	Ukraine	54.64
20	3	Erika Krūminaitė	Lithuania	54.87	SB
21	2	Lily Beckford	Great Britain	54.88
22	3	Jenna Bromell	Ireland	55.20
23	1	Vijona Kryeziu	Kosovo	55.95
	2	Shaquania Dorsett	Bahamas	DNS

[4]

Rank	Lane	Name	Nationality	Time	Note
	5	Tiffany James	Jamaica	51.32	WU20L
	7	Lynna Irby	United States	51.39	PB
	4	Junelle Bromfield	Jamaica	52.05
4	6	Jessica Thornton	Australia	52.05	PB
5	2	Maureen Nyatichi Thomas	Kenya	52.09	NU20R
6	9	Roxana Gómez	Cuba	52.24	PB
7	8	Natassha McDonald	Canada	53.35
8	3	Dzhois Koba	Ukraine	53.74