This is the progression of world record improvements of the 400 metres W60 division of Masters athletics.
Key
HandAutoAthleteNationalityBirthdateAgeLocationDateRef1:01.73Sue McDonald29 March 1963Sacramento19 July 20241:02.34Sue McDonald29 March 1963Greensboro21 July 20231:03.71Sue McDonald29 March 1963Long Beach15 April 20231:04.31Caroline Powell21 December 1953Lyon12 August 20151:04.64Caroline Powell21 December 1953Cheltenham2 July 20141:06.24Karla Del Grande27 March 1953Porto Alegre26 October 20131:06.69Phil Raschker21 February 1947Louisville3 July 20071:07.30Anne Stobaus6 July 1941Brisbane10 July 20011:07.80Irene Obera7 December 1933Buffalo22 July 19951:07.97Ann Cooper7 December 1928Turku18 July 19911:12.24Paula Schneiderhan16 November 1921Rome23 June 19851:12.5Aileen Hogan23 October 1922Houston16 September 1983
References
Masters Athletics 400 m list