4x400 Metres Relay Summary | 13th IAAF World Championships in Athletics

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

Rank	Heat	ATHLETE	COUNTRY	RESULTS
3	2	Czech Republic	CZE	3:26.01 q SB
5	2	Canada	CAN	3:27.92 SB
5	3	PR of China	CHN	3:32.39 SB
	3	Turkey	TUR	DQ
6	2	Brazil	BRA	3:32.43
3	3	Italy	ITA	3:26.48 SB
2	3	Great Britain & NI	GBR	3:23.05 Q SB
5	1	Australia	AUS	3:32.27 SB
4	1	France	FRA	3:28.02 SB
3	1	Germany	GER	3:27.31 SB
1	3	Jamaica	JAM	3:22.01 Q SB
	1	Ukraine	UKR	DQ
1	2	Russia	RUS	3:20.94 Q WL
6	3	Korea	KOR	3:43.22 SB
4	2	Cuba	CUB	3:26.74 SB
1	1	United States	USA	3:23.57 Q
4	3	Ireland	IRL	3:27.48 NR
2	1	Belarus	BLR	3:24.28 q SB
	1	Kazakhstan	KAZ	DNF
2	2	Nigeria	NGR	3:25.59 Q SB

4x400 Metres Relay women