This is the progression of world record improvements of the 400 metres W80 division of Masters athletics.
Key
HandAutoAthleteNationalityBirthdateAgeLocationDateRef1:28.63Marjorie Allison13 September 1944Brisbane8 September 20251:29.84Rietje Dijkman21 June 1939Caorle9 September 20191:31.10 Emma Mazzenga1 August 1933Budapest30 March 20141:31.21Emma Mazzenga1 August 1933Padua1 September 20131:39.99Christine Du Plooy25 March 1931Kings Park29 April 20111:40.45Polly Clarke17 July 1910Indianapolis3 August 1990
References
Masters Athletics 400 m list