Team Charleston Airmen start the 5k Commander's Fitness Challenge from the fitness center in formation on Charleston AFB April 3. More than 300 Airmen from around the base came out to participate in the monthly challenge. (U.S. Air Force photo/Senior Airman Timothy Taylor)

Team Charleston Airmen start the 5k Commander's Fitness Challenge in formation on Charleston AFB April 3. Airmen were highly encouraged to finish the 5K in formation but were allowed to run at their own pace at the half-way point. (U.S. Air Force photo/Senior Airman Timothy Taylor)

second Lieutenant Eric Hansen is the first guidon to finish the 5k Commander's Fitness Challenge on Charleston AFB April 3. More than 300 Airmen from around the base came out to participate in the monthly challenge. Lieutenant Hansen is with the 437th Civil Engineering Squadron. (U.S. Air Force photo/Senior Airman Timothy Taylor)

The 437th Communications Squadron finishes, as the first full formation during the 5k Commander's Fitness Challenge on Charleston AFB April 3. Airmen were highly encouraged to finish the 5K in formation but were allowed to run at their own pace at the half-way point. (U.S. Air Force photo/Senior Airman Timothy Taylor)

The 437th Communications Squadron was the first to finish the 5k Commander's Fitness Challenge on Charleston AFB April 3. The communication squadron received the spirit trophy for exhibiting the most spirit during the 5K fitness run. (U.S. Air Force photo/Senior Airman Timothy Taylor)