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.
Antarctic Ice Marathon & 100k ultra race Antarctic Ice Marathon & 100k ultra race The Antarctic Ice Marathon was established by Richard Donovan / Polar Running Adventures to enable marathon runners to complete a marathon on all seven continents. It also enables athletes to complete the marathon grand slam - a marathon on all seven continents and the North Pole. Runnings of the Antarctic Ice Marathon and 100 km race have taken place at 80° south just a few hundred miles from the South Pole at the foot of the Ellsworth Mountains. Participants are flown from Punta Arenas, Chile to the race location in the interior of