Senior Airman Joseph Schlank, 437th Aerial Port Squadron passenger service agent, crosses the finish line during the Commander's Challenge Run Feb. 1, 2013, at Joint Base Charleston – Air Base, S.C. Schlank finished with a time of 18 minutes, 16 seconds. The Commander's Challenge is held monthly to test Team Charleston's fitness abilities. (U.S. Air Force photo/ Senior Airman George Goslin)

Capt. Mary Stanton, 16th Airlift Squadron pilot, crosses the finish line during the Commander's Challenge Run Feb. 1, 2013, at Joint Base Charleston – Air Base, S.C. Stanton finished with a time of 21 minutes, 30 seconds. The Commander's Challenge is held monthly to test Team Charleston's fitness abilities. (U.S. Air Force photo/ Senior Airman George Goslin)

(Right) Col. Darren Hartford, 437th Airlift Wing commander, presents the Commander’s Spirit Award to Airmen from the 437th Aircraft Maintenance Squadron after the Commander’s Challenge Run, Feb. 1, 2013, at Joint Base Charleston – Air Base, S.C. The Commander's Challenge is held monthly to test Team Charleston's fitness abilities (U.S. Air Force photo/ Senior Airman George Goslin)