Metrication in the United States traditional mile-based lengths. In the Olympics, athletes run 1500 meters, not 1600 meters. Running races in the U.S. are usually run in metric distances (e.g., the 100 metres dash or the 5K run), although the mile distance remains popular. But even 5 and 10 kilometer races most often have mile markers on the course, and no kilometer markers. Long-distance races are often measured in kilometers, although exceptions exist (generally 10 mile races). The marathon is referred to as a 26.219-mile race (the official marathon standard distance originally being in English units — 26 miles, 385 yards) rather than 42.195 km.
Mexico City Marathon Mexico City Marathon The Mexico City Marathon () is an annual road running event over the marathon distance which is held on the streets of Mexico City in late August or early September that in 2016 received IAAF Bronze Label Status. The race was established in 1983 at a time of growing interest in marathons in the country – the Independencia Marathon had been launched three years earlier and the Monterrey Marathon had been run over the full distance in 1982. The winner of the first women's race, María del Carmen Cárdenas, later became one of the first female Olympic