Masters M65 400 metres world record progression

This is the progression of world record improvements of the 400 metres M65 division of Masters athletics.

;Key:

{{legend2|#f6F5CE|Incomplete information|border=solid 1px #AAAAAA}}

class="wikitable"
Hand !Auto !Athlete !Nationality !Birthdate !Age !Location !Date
\|56.28 \|Charles Allie \|{{USA}} \|20 August 1947 \|{{Ayd\|1947\|8\|20\|2012\|9\|1}} \|Falls Church \|1 September 2012
\|56.37 \|Guido Müller \|{{GER}} \|22 December 1938 \|{{Ayd\|1938\|12\|22\|2004\|6\|13}} \|Hof \|13 June 2004
\|57.27 \|Ralph Romain \|{{TRI}} \|20 July 1932 \|{{Ayd\|1932\|7\|20\|1997\|7\|25}} \|Durban \|25 July 1997
\|57.52 \|Berthold Neumann \|{{GER}} \|19 December 1930 \|{{Ayd\|1930\|12\|19\|1996\|7\|22}} \|Malmö \|22 July 1996
\|57.97 \|Earl Fee \|{{CAN}} \|22 March 1929 \|{{Ayd\|1929\|3\|22\|1995\|7\|22}} \|Buffalo \|22 July 1995
\|58.52 \|Jim Law \|{{USA}} \|1926 \|65 \|Syracuse \|27 June 1991
\|1:01.15 \|Arne Pettersson \|{{SWE}} \|24 March 1923 \|{{Ayd\|1923\|3\|24\|1988\|9\|3}} \|Gothenburg \|3 September 1988

class="wikitable"

Hand

!Auto

!Athlete

!Nationality

!Birthdate

!Age

!Location

!Date

|56.28

|{{USA}}