Team Charleston Airmen start the Commander's Fitness Challenge 5,000-meter run on Charleston AFB March 6. More than 350 Airmen from various squadrons participated in the monthly challenge. (U.S. Air Force photo/Staff Sgt. Marie Cassetty)

Team Charleston Airmen start the Commander's Fitness Challenge 5,000-meter run on Charleston AFB March 6. More than 350 Airmen from various squadrons participated in the monthly challenge. (U.S. Air Force photo/Staff Sgt. Marie Cassetty)

Shawn McKeen records time as Mike Bunting crosses the finish line during the Commander's Fitness Challenge 5,000-meter run here March 6. More than 350 Airmen from various squadrons participated in the run. Bunting was the first male to cross the finish line at 16:41 and is assigned to the 315th Maintenance Squadron. McKeen is assigned to the 437th Force Support Squadron. (U.S. Air Force photo/Staff Sgt. Marie Cassetty)

Shawn McKeen records time as Suzanne Jumper crosses the finish line during the Commander's Fitness Challenge 5,000-meter run here March 6. More than 350 Airmen from various squadrons participated in the run. Jumper was the first female to cross the finish line at 23:40 and is assigned to the 437th Civil Engineer Squadron. McKeen is assigned to the 437th Force Support Squadron. (U.S. Air Force photo/Staff Sgt. Marie Cassetty)

Airmen from Charleston AFB step up their pace as they get closer to the finish line during the Commander's Fitness Challenge here March 6. More than 350 Airmen from various squadrons participated in the 5K run. (U.S. Air Force photo/Staff Sgt. Marie Cassetty)