The Marine Corps Marathon app offers all the essential event intel for MCM Weekend. Features include live runner tracking, results, social media integration, interactive course maps, transportation tips, spectator guidance, schedule of events and important news. Mission critical information for runners, spectators, volunteers and residents at the “The People’s Marathon,” MCM10K, MCM50K, MCM Kids Run and the Health & Fitness Expo. The MCM, one of the largest marathons in the world, is hosted annually in Arlington, VA and the nation’s capital and is organized by the men and women of the United States Marine Corps.