| | Event type

4 x 400 metres Relay, Women

Date	19 – 20 August 2016
Status	Olympic
Location	Estádio Olímpico João Havelange, Engenho de Dentro, Rio de Janeiro
Participants	69 from 16 countries

This was expected to be a two-team duel between Jamaica and the United States but, unlike the 4x100, the Americans were favored in this event. Jamaica had narrowly defeated them at the 2015 World Championships, but the US had won the last five Olympic gold medals. Both won their semi-finals easily.

Courtney Okolo put the US into the lead on the opening leg, just ahead of Jamaica’s Stephanie Ann McPherson. On the second leg Natasha Hastings extended the American lead, but the race was still close. Allyson Felix took the baton for the anchor with a 0.42 second lead over Jamaican anchor Novlene Williams-Mills. Felix powered away from Williams-Mills and the US had gold in 3:19.06, with Jamaica finishing in 3:20.34. The bronze medal went to Great Britain over Canada, in what seemed like an entirely different race, the Brits finishing 5½ seconds behind Jamaica.

Pos	Nr	Team	NOC	R1	Final
1	–	United States	USA	3:21.42 (1 h1)	3:19.06 (1)	Gold
		Courtney Okolo • Natasha Hastings • Phyllis Francis • Allyson Felix • Taylor Ellis-Watson • Francena McCorory
2	–	Jamaica	JAM	3:22.38 (1 h2)	3:20.34 (2)	Silver
		Stephenie McPherson • Anneisha McLaughlin-Whilby • Shericka Jackson • Novlene Williams-Mills • Christine Day • Chrisann Gordon
3	–	Great Britain	GBR	3:24.81 (2 h2)	3:25.88 (3)	Bronze
		Eilidh Doyle • Anyika Onuora • Emily Diamond • Christine Ohuruogu • Kelly Massey
4	–	Canada	CAN	3:24.94 (3 h2)	3:26.43 (4)
		Carline Muir • Alicia Brown • Noelle Montcalm • Sage Watson
5	–	Italy	ITA	3:25.16 (4 h2)	3:27.05 (5)
		Maria Benedicta Chigbolu • Maria Enrica Spacca • Ayomide Folorunso • Libania Grenot
6	–	Poland	POL	3:25.34 (2 h1)	3:27.28 (6)
		Małgorzata Hołub • Patrycja Wyciszkiewicz • Iga Baumgart • Justyna Święty
7	–	Australia	AUS	3:25.71 (3 h1)	3:27.45 (7)
		Jessica Thornton • Annie Rubie • Caitlin Sargent • Morgan Mitchell
4 h1 r1/2	–	France	FRA	3:26.18 (4 h1)	–
		Phara Anacharsis • Brigitte Ntiamoah • Marie Gayot • Floria Gueï
5 h1 r1/2	–	Netherlands	NED	3:26.98 (5 h1)	–
		Madiea Ghafoor • Lisanne de Witte • Nicky van Leuveren • Laura de Witte
5 h2 r1/2	–	Germany	GER	3:26.02 (5 h2)	–
		Laura Müller • Friederike Möhlenkamp • Lara Hoffmann • Ruth Spelmeyer
6 h1 r1/2	–	Romania	ROU	3:29.87 (6 h1)	–
		Adelina Pastor • Anamaria Ioniță • Andrea Miklós • Bianca Răzor
6 h2 r1/2	–	The Bahamas	BAH	3:26.36 (6 h2)	–
		Lanece Clarke • Anthonique Strachan • Carmiesha Cox • Christine Amertil
7 h1 r1/2	–	Brazil	BRA	3:30.27 (7 h1)	–
		Joelma Sousa • Geisa Coutinho • Leticia Cherpe • Jailma Lima
7 h2 r1/2	–	Cuba	CUB	3:30.11 (7 h2)	–
		Lisneidy Veitía • Gilda Casanova • Roxana Gómez • Daisurami Bonne
DQ	–	Ukraine	UKR	[3:24.54] (DQ h1)	[3:26.64] (DQ)		1
		Alina Lohvynenko • Olha Bibik • Tetiana Melnyk • Olha Zemliak 2
DQ	–	India	IND	[3:29.53] (DQ h2)	–		3
		Nirmala Sheoran 4 • Tintu Luka • M. R. Povamma • Anilda Thomas

Round One (19 August 2016)

Top three in each heat and next two fastest advanced to the final.

Heat One (20:40)

Pos	Nr	Team	NOC	Time (A)	Split (Pos)	Reaction Time
1	4	United States	USA	3:21.42		0.206	Q
	–	Courtney Okolo		50.7	50.7 (1)
	–	Taylor Ellis-Watson		50.4	1:41.21 (1)
	–	Francena McCorory		49.68	2:30.89 (1)
	–	Phyllis Francis		50.53	3:21.42 (1)
2	2	Poland	POL	3:25.34		0.156	Q
	–	Małgorzata Hołub		51.7	51.7 (2)
	–	Patrycja Wyciszkiewicz		50.9	1:42.69 (2)
	–	Iga Baumgart		51.37	2:34.06 (2)
	–	Justyna Święty		51.28	3:25.34 (3)
3	1	Australia	AUS	3:25.71		0.158	q
	–	Jessica Thornton		51.7	51.7 (3)
	–	Annie Rubie		51.1	1:42.96 (3)
	–	Caitlin Sargent		51.78	2:34.74 (5)
	–	Morgan Mitchell		50.97	3:25.71 (4)
4	3	France	FRA	3:26.18		0.179
	–	Phara Anacharsis		52.4	52.4 (5)
	–	Brigitte Ntiamoah		52.2	1:44.66 (6)
	–	Marie Gayot		51.76	2:36.42 (6)
	–	Floria Gueï		49.76	3:26.18 (5)
5	6	Netherlands	NED	3:26.98		0.168
	–	Madiea Ghafoor		52.4	52.4 (6)
	–	Lisanne de Witte		51	1:43.50 (5)
	–	Nicky van Leuveren		50.99	2:34.49 (3)
	–	Laura de Witte		52.49	3:26.98 (6)
6	5	Romania	ROU	3:29.87		0.197
	–	Adelina Pastor		53.5	53.5 (7)
	–	Anamaria Ioniță		52	1:45.64 (8)
	–	Andrea Miklós		53	2:38.64 (8)
	–	Bianca Răzor		51.23	3:29.87 (7)
7	7	Brazil	BRA	3:30.27		0.216
	–	Joelma Sousa		53.9	53.9 (8)
	–	Geisa Coutinho		51.2	1:45.25 (7)
	–	Leticia Cherpe		51.91	2:37.16 (7)
	–	Jailma Lima		53.11	3:30.27 (8)
DQ	8	Ukraine	UKR	[3:24.54]		[0.169]	Q	5
	–	Alina Lohvynenko		52.2	52.2 (4)
	–	Olha Bibik		50.9	1:43.16 (4)
	–	Tetiana Melnyk		51.36	2:34.52 (4)
	–	Olha Zemliak		[50.02]	[3:24.54] ([2])			6

Heat Two (20:51)

Pos	Nr	Team	NOC	Time (A)	Split (Pos)	Reaction Time
1	4	Jamaica	JAM	3:22.38		0.191	Q
	–	Christine Day		51.4	51.4 (2)
	–	Anneisha McLaughlin-Whilby		49.9	1:41.31 (1)
	–	Chrisann Gordon		50.49	2:31.80 (1)
	–	Novlene Williams-Mills		50.58	3:22.38 (1)
2	2	Great Britain	GBR	3:24.81		0.168	Q
	–	Emily Diamond		51.7	51.7 (3)
	–	Anyika Onuora		50.3	1:42.04 (2)
	–	Kelly Massey		51.43	2:33.47 (2)
	–	Christine Ohuruogu		51.34	3:24.81 (2)
3	8	Canada	CAN	3:24.94		0.203	Q
	–	Carline Muir		51.3	51.3 (1)
	–	Alicia Brown		50.8	1:42.25 (3)
	–	Noelle Montcalm		51.94	2:34.19 (3)
	–	Sage Watson		50.75	51.7 (3)
4	3	Italy	ITA	3:25.16		0.160	q
	–	Maria Benedicta Chigbolu		52.1	52.1 (5)
	–	Maria Enrica Spacca		51.3	1:43.54 (5)
	–	Ayomide Folorunso		51.44	2:34.98 (4)
	–	Libania Grenot		50.18	3:25.16 (4)
5	5	Germany	GER	3:26.02		0.152
	–	Laura Müller		52.1	52.1 (4)
	–	Friederike Möhlenkamp		50.9	1:43.14 (4)
	–	Lara Hoffmann		52.25	2:35.39 (6)
	–	Ruth Spelmeyer		50.63	3:26.02 (5)
6	6	The Bahamas	BAH	3:26.36		0.166
	–	Lanece Clarke		52.4	52.4 (6)
	–	Anthonique Strachan		51.9	1:44.38 (6)
	–	Carmiesha Cox		50.91	2:35.29 (5)
	–	Christine Amertil		51.07	3:26.36 (6)
7	7	Cuba	CUB	3:30.11		0.245
	–	Lisneidy Veitía		52.8	52.8 (7)
	–	Gilda Casanova		52.3	1:45.14 (7)
	–	Roxana Gómez		52.31	2:37.45 (7)
	–	Daisurami Bonne		52.66	3:30.11 (8)
DQ	1	India	IND	[3:29.53]		[0.243]		7
	–	Nirmala Sheoran		[53.2]	[53.2] ([8])			8
	–	Tintu Luka		52.2	1:45.51 (8)
	–	M. R. Povamma		52.24	2:37.75 (8)
	–	Anilda Thomas		51.78	3:29.53 (7)

Final (20 August 2016 — 22:00)

Pos	Nr	Team	NOC	Time (A)	Split (Pos)	Reaction Time
1	6	United States	USA	3:19.06		0.232
	–	Courtney Okolo		50.3	50.3 (1)
	–	Natasha Hastings		49.2	1:39.58 (1)
	–	Phyllis Francis		49.82	2:29.40 (1)
	–	Allyson Felix		49.66	3:19.06 (1)
2	5	Jamaica	JAM	3:20.34		0.134
	–	Stephenie McPherson		50.6	50.6 (2)
	–	Anneisha McLaughlin-Whilby		49.6	1:40.35 (2)
	–	Shericka Jackson		49.47	2:29.82 (2)
	–	Novlene Williams-Mills		50.52	3:20.34 (2)
3	3	Great Britain	GBR	3:25.88		0.169
	–	Eilidh Doyle		52.5	52.5 (5)
	–	Anyika Onuora		51.4	1:44.01 (5)
	–	Emily Diamond		51.15	2:35.16 (3)
	–	Christine Ohuruogu		50.72	3:25.88 (3)
4	7	Canada	CAN	3:26.43		0.192
	–	Carline Muir		52.0	52.0 (3)
	–	Alicia Brown		51.1	1:43.13 (3)
	–	Noelle Montcalm		52.74	2:35.87 (4)
	–	Sage Watson		50.56	3:26.43 (4)
5	1	Italy	ITA	3:27.05		0.167
	–	Maria Benedicta Chigbolu		52.6	52.6 (6)
	–	Maria Enrica Spacca		51.8	1:44.49 (7)
	–	Ayomide Folorunso		51.68	2:36.17 (5)
	–	Libania Grenot		50.88	3:27.05 (6)
6	8	Poland	POL	3:27.28		0.155
	–	Małgorzata Hołub		52.3	52.3 (4)
	–	Patrycja Wyciszkiewicz		51.2	1:43.57 (4)
	–	Iga Baumgart		52.63	2:36.20 (6)
	–	Justyna Święty		51.08	3:27.28 (7)
7	2	Australia	AUS	3:27.45		0.176
	–	Jessica Thornton		52.8	52.8 (7)
	–	Annie Rubie		51.2	1:44.07 (6)
	–	Caitlin Sargent		52.86	2:36.93 (8)
	–	Morgan Mitchell		50.52	3:27.45 (8)
DQ	4	Ukraine	UKR	[3:26.64]		[0.167]	9
	–	Alina Lohvynenko		53.3	53.3 (8)
	–	Olha Bibik		51.5	1:44.85 (8)
	–	Tetiana Melnyk		51.49	2:36.34 (7)
	–	Olha Zemliak		[50.30]	[3:26.64] ([5])		10