Ano
|
Tiempo
|
Atleta
|
Ubicacion
|
1966
|
44,82y
|
Wendell Motley
|
Kingston
|
1967
|
44,74+h
|
Tommie Smith
|
San Jose
|
1968
|
43,86A
|
Lee Evans
|
Ciudad de Mexico
|
1969
|
44,67y
|
Curtis Mills
|
Knoxville
|
1970
|
45,01
|
Charles Asati
|
Edimburgo
|
1971
|
44,44yh
|
John Smith
|
Eugene
|
1972
|
44,34h
|
Wayne Collett
|
Eugene
|
1973
|
44,85y
|
Maurice Peoples
|
Baton Rouge
|
1974
|
44,94h
|
Alberto Juantorena
|
Ciudad de Mexico
|
1975
|
44,45A
|
Ronald Ray
|
Ciudad de Mexico
|
1976
|
44,26
|
Alberto Juantorena
|
Montreal
|
1977
|
44,65
|
Alberto Juantorena
|
La Habana
|
1978
|
44,27(A)
|
Alberto Juantorena
|
Medellin
|
1979
|
44,92
|
Harald Schmid
|
Stuttgart
|
1980
|
44,60
|
Viktor Markin
|
Moscu
|
1981
|
44,58
|
Bert Cameron
|
Baton Rouge
|
1982
|
44,68
|
Sunder Nix
|
Indianapolis
|
1983
|
44,50
|
Erwin Skamrahl
|
Munich
|
1984
|
44,27
|
Alonzo Babers
|
Los Angeles
|
1985
|
44,47
|
Michael Franks
|
Canberra
|
1986
|
44,30
|
Gabriel Tiacoh
|
Indianapolis
|
1987
|
44,10
|
Butch Reynolds
|
Columbus
|
1988
|
43,29
|
Butch Reynolds
|
Zurich
|
1989
|
44,27
|
Antonio Pettigrew
|
Houston
|
1990
|
44,06
|
Danny Everett
|
Sevilla
|
1991
|
44,17
|
Michael Johnson
|
Lausana
|
1992
|
43,50
|
Quincy Watts
|
Barcelona
|
1993
|
43,65
|
Michael Johnson
|
Stuttgart
|
1994
|
43,90
|
Michael Johnson
|
Madrid
|
1995
|
43,39
|
Michael Johnson
|
Gotemburgo
|
1996
|
43,44
|
Michael Johnson
|
Atlanta
|
1997
|
43,75
|
Michael Johnson
|
Waco
|
1998
|
43,68
|
Michael Johnson
|
Zurich
|
1999
|
43,18
|
Michael Johnson
|
Sevilla
|
2000
|
43,68
|
Michael Johnson
|
Sacramento
|
2001
|
44,28
|
Tyree Washington
|
Los Angeles
|
2002
|
44,45
|
Leonard Byrd
|
Belem
|
2003
|
44,33
|
Tyree Washington
|
Palo Alto
|
2004
|
44,00
|
Jeremy Wariner
|
Atenas
|
2005
|
43,93
|
Jeremy Wariner
|
Helsinki
|
2006
|
43,62
|
Jeremy Wariner
|
Roma
|
2007
|
43,45
|
Jeremy Wariner
|
Osaka
|
2008
|
43,75
|
LaShawn Merritt
|
Pekin
|
2009
|
44,06
|
LaShawn Merritt
|
Berlin
|
2010
|
44,13
|
Jeremy Wariner
|
Zurich
|
2011
|
44,35
|
LaShawn Merritt
|
Daegu
|
2012
|
43,94
|
Kirani James
|
Londres
|
2013
|
43,74
|
LaShawn Merritt
|
Moscu
|
2014
|
43,74
|
Kirani James
|
Lausana
|
2015
|
43,48
|
Wayde van Niekerk
|
Pekin
|
2016
|
43,03
|
Wayde van Niekerk
|
Rio de Janeiro
|
2017
|
43.62
|
Wayde van Niekerk
|
Lausanne
|
2018
|
43.61
|
Michael Norman
|
Eugene
|
2019
|
43.45
|
Michael Norman
|
Torrance
|
2020
|
44.91
|
Justin Robinson
|
Marietta
|
|
Ano
|
Tiempo
|
Atleta
|
Ubicacion
|
1966
|
|
|
|
1967
|
|
|
|
1968
|
52,03
|
Colette Besson
|
Ciudad de Mexico
|
1969
|
51,72
|
Nicole Duclos
|
Atenas
|
1970
|
51,02
|
Marilyn Neufville
|
Edimburgo
|
1971
|
52,14
|
Helga Seidler
|
Helsinki
|
1972
|
51,08
|
Monika Zehrt
|
Munich
|
1973
|
51,27
|
Mona-Lisa Pursiainen
|
Helsinki
|
1974
|
50,14
|
Riitta Salin
|
Roma
|
1975
|
50,50
|
Irena Szewinska
|
Niza
|
1976
|
49,28
|
Irena Szewinska
|
Montreal
|
1977
|
49,52
|
Irena Szewinska
|
Dusseldorf
|
1978
|
48,94
|
Marita Koch
|
Praga
|
1979
|
48,89
|
Marita Koch
|
Potsdam
|
1980
|
48,88
|
Marita Koch
|
Moscu
|
1981
|
48,61
|
Jarmila Kratochvilova
|
Roma
|
1982
|
48,16
|
Marita Koch
|
Atenas
|
1983
|
47,99
|
Jarmila Kratochvilova
|
Helsinki
|
1984
|
48,16
|
Marita Koch
|
Praga
|
1985
|
47,60
|
Marita Koch
|
Canberra
|
1986
|
48,22
|
Marita Koch
|
Stuttgart
|
1987
|
49,38
|
Olga Bryzgina
|
Roma
|
1988
|
48,65
|
Olga Bryzgina
|
Seul
|
1989
|
50,01
|
Ana Fidelia Quiros
|
Duisburgo
|
1990
|
49,50
|
Grit Breuer
|
Split
|
1991
|
49,32
|
Marie-Jose Perec
|
Frankfurt
|
1992
|
48,83
|
Marie-Jose Perec
|
Frankfurt
|
1993
|
49,81
|
Ma Yuqin
|
Pekin
|
1994
|
49,77
|
Marie-Jose Perec
|
Paris
|
1995
|
49,28
|
Marie-Jose Perec
|
Gotemburgo
|
1996
|
48,25
|
Marie-Jose Perec
|
Atlanta
|
1997
|
49,39
|
Cathy Freeman
|
Oslo
|
1998
|
49,29
|
Charity Opara
|
Roma
|
1999
|
49,62
|
Falilat Ogunkoya
|
Lagos
|
2000
|
49,11
|
Cathy Freeman
|
Sidney
|
2001
|
49,59
|
Katharine Merry
|
Atenas
|
2002
|
49,16
|
Ana Guevara
|
Zurich
|
2003
|
48,89
|
Ana Guevara
|
Saint-Denis
|
2004
|
49,07
|
Tonique Williams-Darling
|
Berlin
|
2005
|
48,92
|
Sanya Richards-Ross
|
Zurich
|
2006
|
48,70
|
Sanya Richards-Ross
|
Atenas
|
2007
|
49,27
|
Sanya Richards-Ross
|
Berlin
|
2008
|
49,62
|
Christine Ohuruogu
|
Pekin
|
2009
|
48,83
|
Sanya Richards-Ross
|
Bruselas
|
2010
|
49,64
|
Debbie Dunn
|
Des Moines
|
2011
|
49,35
|
Anastasiya Kapachinskaya
|
Cheboksary
|
2012
|
49,16
|
Antonina Krivoshapka
|
Cheboksary
|
2013
|
49,33
|
Amantle Montsho
|
Monaco
|
2014
|
49,48
|
Francena McCorory
|
Sacramento
|
2015
|
49,26
|
Allyson Felix
|
Pekin
|
2016
|
49.44
|
Shaunae Miller
|
Rio de Janeiro
|
2017
|
49.46
|
Shaunae Miller-Uibo
|
Bruselas
|
2018
|
48.97
|
Shaunae Miller-Uibo
|
Monaco
|
2019
|
48.14
|
Salwa Eid Naser
|
Doha
|
2020
|
50.50
|
Lynna Irby
|
Monaco
|
|