These are the official results of the men's 400 metres

400 metres

The 400 metres, or 400 metre dash, is a common sprinting event in track and field competitions. It has been featured in the athletics programme at the Summer Olympics since 1896 . On a standard outdoor running track, it is exactly one lap around the track. Runners start in staggered positions and...

event at the 1983 IAAF World Championships

1983 World Championships in Athletics

The inaugural World Championships in Athletics were run under the auspices of the International Association of Athletics Federations and were held at the Olympic Stadium in Helsinki, Finland between August 7 and August 14, 1983....

in Helsinki, Finland. There were a total number of 55 participating athletes, with seven qualifying heats and the final held on 10 August 1983.

Medalists

Gold	Bert Cameron Bert Cameron Bertland Cameron is a retired Jamaican sprinter who mainly competed over 400 metres. He represented Jamaica at three consecutive editions of the Summer Olympics. Cameron won the 400 m title at the first World Championships in Athletics... Jamaica Jamaica Jamaica is an island nation of the Greater Antilles, in length, up to in width and 10,990 square kilometres in area. It is situated in the Caribbean Sea, about south of Cuba, and west of Hispaniola, the island harbouring the nation-states Haiti and the Dominican Republic...  (JAM)
Silver	Michael Franks Michael Franks (athlete) Michael "Mike" Franks is a former American track and field athlete who competed in the 400-meter dash.He was the silver medalist in the event at the inaugural 1983 World Championships in Athletics. He was given the Harrison Dillard Award in 1984 for his achievements... United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...  (USA)
Bronze	Sunder Nix Sunder Nix Sunder L. Nix was a 1984 Summer Olympics gold medalist in the men's 4x400 meter relay for the United States.-References:*... United States United States The United States of America is a federal constitutional republic comprising fifty states and a federal district...  (USA)

Records

Existing records at the start of the event.

World Record		43.86	Mexico City Mexico City Mexico City is the Federal District , capital of Mexico and seat of the federal powers of the Mexican Union. It is a federal entity within Mexico which is not part of any one of the 31 Mexican states but belongs to the federation as a whole... , Mexico Mexico The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...	October 18, 1968
Championship Record	New event

Final

RANK	FINAL	TIME
		45.05
		45.22
		45.24
4.		45.37
5.		45.49
6.		45.50
7.		45.80
8.		45.91

Semifinals

• Held on Tuesday 1983-08-09

  RANK	HEAT 1	TIME
  1.		45.44
  2.		45.61
  3.		45.67
  4.		45.83
  5.		46.03
  6.		46.11
  7.		46.36
  8.		46.55

RANK	HEAT 2	TIME
1.		45.48
2.		45.61
3.		45.63
4.		45.73
5.		45.73
6.		46.52
7.		46.79
8.		46.81

Quarterfinals

• Held on Monday 1983-08-08

  RANK	HEAT 1	TIME
  1.		45.57
  2.		45.80
  3.		45.86
  4.		46.12
  5.		46.32
  6.		46.38
  7.		46.74
  		DNF

RANK	HEAT 2	TIME
1.		45.76
2.		45.84
3.		45.90
4.		45.94
5.		46.22
6.		46.54
7.		46.71
8.		47.69

RANK	HEAT 3	TIME
1.		46.01
2.		46.31
3.		46.44
4.		46.62
5.		47.06
6.		47.59
7.		48.09
		DNS

RANK	HEAT 4	TIME
1.		46.16
2.		46.19
3.		46.24
4.		46.39
5.		46.42
6.		46.97
7.		47.34
		DNF

Qualifying heats

• Held on Sunday 1983-08-07

  RANK	HEAT 1	TIME
  1.		46.19
  2.		46.43
  3.		46.60
  4.		46.92
  5.		47.50
  6.		47.55
  7.		49.68
  		DNS

RANK	HEAT 2	TIME
1.		46.11
2.		46.17
3.		46.23
4.		46.69
5.		48.14
6.		48.16
7.		59.67
		DQ

RANK	HEAT 3	TIME
1.		46.31
2.		46.58
3.		46.64
4.		46.90
5.		46.95
6.		48.26
		DNS

RANK	HEAT 4	TIME
1.		46.33
2.		46.35
3.		46.66
4.		46.68
5.		47.44
6.		49.29
7.		50.25
		DNF

RANK	HEAT 5	TIME
1.		46.32
2.		46.61
3.		46.74
4.		47.11
5.		47.19
6.		47.25
7.		50.52
		DNS

RANK	HEAT 6	TIME
1.		46.16
2.		47.09
3.		47.17
4.		47.35
5.		47.72
6.		48.35
7.		49.02
		DQ

RANK	HEAT 7	TIME
1.		45.74
2.		46.26
3.		46.69
4.		47.37
5.		49.22
6.		51.82
		DNS
		DQ