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 1908 Summer Olympics – Men's marathon (in hours) prior to the 1908 Summer Olympics. "(*)" distance 40.0 km "(**)" distance 41.86 km Johnny Hayes set a new Olympic record with 2:55:18.4 hours. 27 runners finished the marathon legally, though Dorando Pietri's (disqualified) performance was perhaps the most applauded; his finishing time was 2:54:46.4 hours, half a minute ahead of the winner. The dramatic finish of the 1908 Olympic marathon led to worldwide marathon fever. In a postcard sent at the time, an American spectator said he had "just seen the greatest race of the century." Since Pietri himself had not been responsible for his disqualification Queen