U.S. Air Force Maj. Carrie Wentzel, 633rd Force Support Squadron operations officer, runs through a curve on the outdoor track at Langley Air Force Base, Va., Nov. 26, 2013. Wentzell, a seasoned marathon runner, is training for the Langley 10-mile “Race ‘Round the Base,” scheduled for Dec. 14. (U.S. Air Force photo by Staff Sgt. Jarad A. Denton/Released)