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This is the progression of world record improvements of the 400 metres hurdles M40 division of Masters athletics.
Incomplete information Pending
| Hand | Auto | Athlete | Nationality | Birthdate | Location | Date |
|---|---|---|---|---|---|---|
| 49.69 | Danny McFarlane | 14.02.1972 | Kingston | 29.06.2012 | ||
| 52.62 | Antônio Dias Ferreira | 02.03.1960 | Rio de Janeiro | 23.07.2000 | ||
| 52.76 | James King | 09.05.1949 | Eugene | 03.08.1989 | ||
| 52.7 | Stan Druckrey | 10.08.1948 | Libertyville | 08.07.1989 | ||
| 54.08 | Leon Hacker | 26.05.1939 | Hannover | 29.07.1979 | ||
| 54.1 | George Mathe | 1937 | 30.06.1979 | |||
| 54.3 | Noel Clough | 25.04.1937 | Gothenburg | 11.08.1977 [1] | ||
| 54.8 | Jim Dixon | 15.03.1932 | Warley | 27.05.1973 | ||
| 55.6 | Luigi Facelli | 10.05.1898 | Bologna | 24.07.1938 | ||