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.
Little Rock Marathon Rock Central High School. The Little Rock Marathon is a 26.2-mile running/walking tour through the historical sites of Little Rock. The course is certified by the UST&F. The Little Rock Half Marathon (13.1 miles) is run on the same course as the big race, but it is half the distance. The course is certified by the UST&F. The Little Rock 10K (6.2 miles) will run with the 5K on the day before the Marathon/Half. The Little Rock 5K (3.1 miles) will run with the 10K on the day before the Marathon/Half. This race is designed for individuals who want an