This is the progression of world record improvements of the 400 metres W50 division of Masters athletics.
| Hand | Auto | Athlete | Nationality | Birthdate | Age | Location | Date | |
|---|---|---|---|---|---|---|---|---|
| 57.55 | Sally Cooke | 9 April 1970 | Derby | 12 June 2022 | ||||
| 57.66 | Marie Lande Mathieu | 26 November 1956 | Riccione | 4 September 2007 | ||||
| 58.51 | Marge Allison | 13 September 1944 | Buffalo | 22 July 1995 | ||||
| 1:01.11 | Jan Hynes | 3 April 1944 | Brisbane | 3 September 1994 | ||||
| 1:01.82 | Brunhilde Hoffmann | 17 August 1939 | Kristiansand | 29 June 1992 | ||||
| 1:02.8 | Irene Obera | 7 December 1933 | St. George | 22 October 1988 | ||||
| 1:03.2 | Anne McKenzie | 28 July 1925 | Greater Point | 15 October 1975 |