2011 World Youth Championships in Athletics – Boys' 400 metres explained

The boys' 400 metres at the 2011 World Youth Championships in Athletics was held at the Stadium Lille Métropole on 6, 7 and 8 July.^[1]

Medalists

width=200 bgcolor=gold	Gold	width=200 bgcolor=silver	Silver	width=200 bgcolor=CC9966	Bronze
Arman Hall	Alphas Kishoyian	Patryk Dobek

Records

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

World Youth Best		45.14		2 September 1995
Championship Record		45.24	Brixen, Italy	10 July 2009
World Youth Leading		46.22	Winter Park, United States	7 May 2011

During the competition, Arman Hall lowered his own world youth-leading 46.22 to post the second-fastest in championship history, 46.01.

Heats

Qualification rule: first 3 of each heat (Q) plus the 3 fastest times (q) qualified.^[2]

Heat 1

Rank	Lane	Name	Nationality	Time	Notes
1	7			47.32	Q
2	3			47.74	Q
3	6			47.83	Q
4	8			48.67	q
5	4			48.73	PB
6	2			48.78	PB
7	1			49.32	PB
8	5			49.50

Heat 2

Rank	Lane	Name	Nationality	Time	Notes
1	2			47.89	Q, PB
2	4			48.15	Q
3	3			48.39	Q
4	5			49.64	PB
5	8			49.72
6	6			50.01
7	1			51.65	SB
	7			DQ

Heat 3

Rank	Lane	Name	Nationality	Time	Notes
1	6			47.59	Q
2	4			47.87	Q, SB
3	2			48.20	Q
4	5			48.48	q
5	8			48.86
6	1			49.77
7	3			49.96
8	7			51.54	PB

Heat 4

Rank	Lane	Name	Nationality	Time	Notes
1	4			47.92	Q
2	1			48.13	Q
3	7			48.49	Q
4	5			48.92	PB
5	3			49.90
6	6			49.94
7	8			51.42
8	2			54.93	PB

Heat 5

Rank	Lane	Name	Nationality	Time	Notes
1	3			46.76	Q
2	2			47.31	Q, PB
3	7			48.05	Q
4	5			49.42
5	1			50.34
6	6			50.60
7	4			54.03

Heat 6

Rank	Lane	Name	Nationality	Time	Notes
1	6			47.12	Q, PB
2	7			47.24	Q, PB
3	1			47.31	Q
4	5			48.04	q, PB
5	4			49.04
6	3			49.07	PB
7	2			49.26	PB
	8			DQ

Heat 7

Rank	Lane	Name	Nationality	Time	Notes
1	5			47.82	Q, PB
2	8			47.87	Q
3	3			48.78	Q, PB
4	4			49.72
5	1			49.97
6	7			50.25
7	6			54.25
	2			DQ

Semifinals

Qualification rule: first 2 of each heat (Q) plus the 2 fastest times (q) qualified.^[3]

Heat 1

Rank	Lane	Name	Nationality	Time	Notes
1	6			47.30	Q
2	3			47.36	Q
3	4			47.42
4	5			47.53
5	8			47.90
6	7			48.01
7	1			48.45
8	2			49.60

Heat 2

Rank	Lane	Name	Nationality	Time	Notes
1	6			46.70	Q
2	7			47.19	Q, PB
3	3			47.27	PB
4	8			47.58	PB
5	4			47.96
6	5			48.18
7	1			49.39
8	2			50.57

Heat 3

Rank	Lane	Name	Nationality	Time	Notes
1	8			46.52	Q
2	6			47.08	Q
3	4			47.12	q
4	3			47.26	q, PB
5	5			47.42	PB
6	7			47.58
7	2			48.57
	1			DQ

Final

^[4]

Rank	Lane	Name	Nationality	Time	Notes
	4			46.01	WYL
	6			46.58
	8			46.67	PB
4	2			46.89	PB
5	5			47.16	PB
6	7			47.22
7	1			47.34
	3			DNF

Notes and References

1. http://www.iaaf.org/wyc11/results/eventCode=4528/racedate=07-08-2011/bydate.html Timetable
2. Web site: 400 Metres Boys - Round 1 . . 6 July 2011.
3. Web site: 400 Metres Boys - Semi-Final . . 7 July 2011.
4. Web site: 400 Metres Boys - Final . . 8 July 2011.