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.
Paris Marathon medal to all runners who finished the race in less than 4 hours. The distance of 40 km was chosen as it was the distance separating Marathon from Athens. The current distance of the race is 42.195 km, which the IAAF established in 1921 as the standard length of a marathon, following the 1908 Olympic race in London. This first race was won by Len Hurst from England who crossed the finishing line in 2 hours, 31 minutes and 30 seconds. His prize money was 200 francs. Although the International Association of Athletics Federations credits Violet Piercy as the first