This is the progression of world record improvements of the 400 metres hurdles W40 division of Masters athletics.
| Hand | Auto | Athlete | Nationality | Birthdate | Location | Date |
|---|---|---|---|---|---|---|
| 58.35 | Barbara Gähling | 20.01.1965 | Erfurt | 21.07.2007 | ||
| 58.3 | 21.06.1960 | Hoo | 03.09.2000 | |||
| 1:02.08 | Maria Jesus Sanguos | 08.01.1955 | Pontevedra | 22.06.1995 | ||
| 1:02.80 | Jan Hynes | 03.04.1944 | 1987 | |||
| 1:02.7 | Karin Von Riewel | 09.12.1948 | Willich | 14.06.1990 | ||
| 1:03.58 | Jan Hynes | 03.04.1944 | Melbourne | 05.12.1987 | ||