The annual Army Ten-Miler race will trigger a series of road closures in Arlington this weekend. More than 26,000 runners will start and end the race near the Pentagon, racing through parts of Rosslyn, D.C. and Pentagon City, according to Maida Johnson, deputy director of the Army Ten-Miler. "The 39th annual Army Ten-Miler race will The annual Army Ten-Miler race will trigger a series of road closures in Arlington this weekend.