This is the progression of world record improvements of the 300 metres hurdles W65 division of Masters athletics.

Key

HandAutoAthleteNationalityBirthdateAgeLocationDateRef52.41Jane Horder18 January 1957Pescara22 September 202352.33Jane Horder18 January 1957Tampere5 July 202252.70Jane Horder18 January 1957Derby11 June 202253.42Jane Horder18 January 1957Nuneaton4 June 202254.00Karla Del Grande27 March 1953Toronto15 August 202154.06Marge Allison13 September 1944Sacramento6 July 201155.30Oddbjørg Haakensveen29 April 1945Nyíregyháza15 July 201055.69Rietje Dijkman21 June 1939Edmonton26 July 20051:01.36Renate Schaden17 February 1939Arhus25 July 20041:01.79Leili Kaas1 October 19346820031:02.45Betty Vosburgh193166San Jose9 August 19971:05.67Isabel Hofmeyr4 June 1928Miyazaki13 October 19931:08.23Else Laine65TurkuJuly 1991

Notes

References

Masters Athletics 300 m hurdles list