The Marine Corps Marathon Organization (MCMO) welcomes runners from across the country and world to #runwiththemarines during five different event weekends throughout the year: - Marine Corps 17.75K in March - Semper Fred 5K in May - Marine Corps Historic Half in May - Quantico 12K in August - Marine Corps Marathon Weekend in October - Turkey Trot in November The Marine Corps Marathon Organization App provides real-time runner tracking & official results as well as information for all event weekends. Highlights: - Live runner tracking, - Live leaderboards, - Official results, - All event information for runners and spectators, - Interactive course maps, - Push notifications, - Social sharing, - and more.