The MCM is opening Metro at 6 a.m. on event morning. The 43rd MCM starts with the wheelchair and hand cycle division at 7:45 a.m. The MCM begins at 7:55 a.m. in Arlington, VA. MCM10K also starts at 7:55 a.m. but on the National Mall. Marathoners must reach the DC Gauntlet by 12:33 p.m.; Beat the Bridge by 1:15 p.m.; and pass the Crystal City Gauntlet by 1:49 p.m.