Staff Sgt. Roger Barrett, a 28th Maintenance Squadron aerospace ground equipment technician, turns around to start another lap in a pool at Ellsworth Air Force Base, S.D., Sept. 15, 2018. The 28th Force Support Squadron hosted the tri-to-b1 triathlon, which consisted of a 500-meter swim, a five-kilometer run and a 10-kilometer bicycle ride. (U.S. Air Force Photo by Airman 1st Class Thomas Karol)
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