Masters M45 400 metres world record progression


This is the progression of world record improvements of the 400 metres M45 division of Masters athletics.
;Key:
HandAutoAthleteNationalityBirthdateLocationDate
49.32Allen Woodard16.11.1969Grand Rapids15.07.2016
49.69Allen Woodard16.11.1969Houston04.04.2015
49.89 iFred Sowerby11.12.1948ATQ29.01.1994
50.18Khalid Mulazim28.03.66Berea29.07.2011
50.20Fred Sowerby11.12.1948Eugene12.08.1994
50.24Stan Whitley17.12.1945Los Angeles12.07.1992
50.46James Burnett13.01.1940Rome29.06.1985
50.61Reginald Austin16.10.1936San Juan23.09.1983
51.11Milton Newton06.11.1933Philadelphia05.07.1980
51.7Richard "Dick" Stolpe03.03.1925London24.08.1972