Masters M45 400 metres hurdles world record progression

This is the progression of world record improvements of the 400 metres hurdles M45 division of Masters athletics.

Key

HandAutoAthleteNationalityBirthdateAgeLocationDateRef53.57Aramis Diaz22 November 1974Rome5 September 202053.90Aramis Diaz22 November 1974Padua29 August 202054.92Edward Betts18 February 1971Palencia9 July 201655.18Guido Müller22 December 1938Malmö1 August 198655.7 Jack Greenwood5 February 1926San Diego24 August 1972

References

Masters Athletics 400 m hurdles list