Diane Leather (born 7 January 1933, Streetly, West Midlands) is the first woman to run a mile in less than 5 minutes. Representing the Birchfield Harriers, Leather broke the 5 minute barrier with a time of 4 minutes and 59.6 seconds, during the Midlands Women's AAA Championships at Birmingham's Alexander Sports Ground on 29 May 1954 - just 23 days after Roger Bannister became the first ever man to run a sub 4 minute mile. In 1955, Diane broke the mile record by a further 15 seconds, achieving her personal best of 4:45. This mile record remained untouched for a further 7 years until Marise Chamberlain ran a 4:41.4 in 1962. It was not until after 1967 that the IAAF started recognising women's world records at this distance.
Leather competed as "Mrs. Diane Charles" by 1960. Her trainer was Mrs Nelson Neal.
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