2007 World Championships in Athletics – Men's 400 metres explained

The men's 400 metres at the 2007 World Championships in Athletics was held at the Nagai Stadium on 28, 29 and 31 August. The winning margin was 0.51 seconds.

Medalists

width=200 bgcolor=gold	Gold	width=200 bgcolor=silver	Silver	width=200 bgcolor=CC9966	Bronze
Jeremy Wariner	LaShawn Merritt	Angelo Taylor

Records

Prior to the competition, the established records were as follows.

World record		43.18	Seville, Spain	26 August 1999
Championship record		43.18	Seville, Spain	26 August 1999
World Leading		43.50	Stockholm, Sweden	7 August 2007
African record		44.10	Stuttgart, Germany	9 September 2006
Asian record		44.56	Budapest, Hungary	12 August 1988
North American record		43.18	Seville, Spain	26 August 1999
South American record		44.29	Seville, Spain	26 August 1999
European record		44.33	Rome, Italy	3 September 1987
Oceanian record		44.38	Seoul, South Korea	26 September 1988

Schedule

Date	Time	Round
August 28, 2007	10:10	Heats
August 29, 2007	21:25	Semifinals
August 31, 2007	22:05	Final

Results

Heats

Qualification: First 3 in each heat (Q) and the next 3 fastest (q) advance to the semifinals.

Rank	Heat	Name	Nationality	Time	Notes
	1			44.50	Q, SB
	4			44.78	Q
	1			44.82	Q, SB
	1			44.92	Q, PB
	4			44.94	Q, NR
	3			44.95	Q, SB
	6			45.01	Q, NR
	2			45.10	Q
	6			45.13	Q
10	7			45.15	Q
11	3			45.17	Q
12	5			45.21	Q
13	7			45.22	Q, SB
14	2			45.27	Q
15	5			45.28	Q
16	6			45.29	Q, PB
17	4			45.31	Q
18	3			45.34	Q
19	2			45.35	Q
20	6			45.36	q, SB
21	7			45.39	Q
22	4			45.40	q, SB
23	5			45.44	Q
23	6			45.44	q
23	1			45.44	PB
26	5			45.46
27	2			45.47	SB
28	2			45.47	SB
29	7			45.50
30	3			45.54
31	5			45.69
32	1			45.70
33	7			45.74	SB
34	1			45.83
35	3			45.94	SB
36	3			45.99	SB
37	2			46.02
38	3			46.06
39	1			46.22	SB
40	6			46.28
41	4			46.55
42	5			46.78
43	4			46.79
44	2			46.86
45	1			46.92	NR
46	7			46.94
47	5			47.51
48	6			47.97	NR
49	6			48.07	PB
50	5			48.60
51	4			48.63	PB
52	7			48.90
53	4			48.95	PB
54	2			50.54	PB
55	2			50.72
	3				DNF
	6				DNF
	7				DNF
	4				DNS
	5				DNS

Semifinals

First 2 in each semifinal (Q) and the next 2 fastest (q) advance to the final.

Rank	Heat	Name	Nationality	Time	Notes
	3			44.31	Q
	2			44.33	Q
	1			44.45	Q
	3			44.46	Q, NR
	3			44.47	q, SB
	2			44.50	Q
	1			44.56	Q, NR
	1			44.86	q, SB
	3			44.95
10	2			45.12	SB
11	1			45.14
11	2			45.14
13	2			45.18
14	1			45.25	PB
15	2			45.37
16	3			45.40
17	1			45.41
18	2			45.47
19	1			45.54
19	2			45.54
21	1			45.60
22	3			46.17
23	3			46.23
	3				DNF

Final

Rank	Name	Nationality	Time	Notes
			43.45	WL
			43.96	PB
			44.32
4			44.45	NR
5			44.59
6			44.71
7			44.72
8			45.40

References