Airmen participate in a 50-yard tire flip event during the Mash Fitness competition in the Pride Hangar at Ellsworth Air Force Base, S.D., Aug. 23, 2013. During the event, five teams comprised of Airmen from different units across the base competed in more than 9 events to determine which team could complete the events in the shortest amount of time. (U.S. Air Force photo by Airman 1st Class Hrair H. Palyan/Released)