LANGLEY AIR FORCE BASE, Va. -- Airman 1st Class Curtis Duckworth, 735th Supply Chain Management Group, competes in the go-kart relay during the Squadron Fitness Challenge May 27. Eighteen teams participated in the annual event wrapping up May fitness month, hosted by the 633d Force Support Squadron and Prism Sports to promote a healthy, active lifestyle. (U.S. Air Force Photo/Staff Sgt. Christina M. Styer)