Marathon world record progression races were first held in 1896, but the distance was not standardized by the International Association of Athletics Federations (IAAF) until 1921. The actual distance for pre-1921 races frequently varied slightly from the present figure of 42.195 km (26 miles 385 yards). In qualifying races for the 1896 Summer Olympics, Greek runners Charilaos Vasilakos (3:18:00) and Ioannis Lavrentis (3:11:27) won the first two modern marathons. On April 10, 1896, Spiridon Louis of Greece won the first Olympic marathon in Athens, Greece in a time of 2:58:50; however, the distance for the event was reported to be only 40,000 meters. Three
Athletics at the 2012 Summer Olympics – Women's marathon Athletics at the 2012 Summer Olympics – Women's marathon The women's marathon at the 2012 Olympic Games in London was held on the Olympic marathon street course on 5 August. The course started and finished on The Mall in central London. Runners completed one short circuit of 2.219 miles around part of the City of Westminster and then three longer circuits of 8 miles around Westminster, the Victoria Embankment and the City of London. The course was designed to pass many of London's best known landmarks, including Buckingham Palace, Trafalgar Square, St Paul's Cathedral, the Guildhall, Leadenhall Market, the Monument,