Airman 1st Class Beau McRoberts, a crew chief with the 437th Maintenance Squadron, races to the finish line during the monthly Fitness Challenge 5k on Joint Base Charleston, S.C., Feb. 6, 2015. McRoberts placed 1st with a time of 18:30. (U.S. Air Force photo/Senior Airman Jared Trimarchi)

Jess Ramsey, spouse of 1st Lt. Phil Ramsey a member of the 628th Civil Engineering Squadron, races to the finish line during the monthly Fitness Challenge 5k on Joint Base Charleston, S.C., Feb. 6, 2015. Ramsey was the top female with a time of 19:17. (U.S. Air Force photo/Senior Airman Jared Trimarchi)

More than 100 service members participated in the monthly Fitness Challenge 5k on Joint Base Charleston, S.C., Feb. 6, 2015. (U.S. Air Force photo/Senior Airman Jared Trimarchi)