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
Colorado Colfax Marathon Kindergarten to 8th grade students. It is a run that is only . The students run the other in training. The training lasts from February to early May. The race is usually planned to be held in the middle of May. The event is held at the Colorado Mills Mall. The students run through a path in the parking lot around the mall area. Colorado Colfax Marathon The Colorado Colfax Marathon is an annual marathon foot-race established in 2006 in Colorado, United States. The course followed Colfax Avenue for 26.2 miles (42.2 km), starting in Aurora, heading west through Denver