U.S. Air Force Master Sgt. Michael Mavrakis, 436th TS occupational safety instructor, finishes the Mustang Half Marathon at Dyess Air Force Base, Texas, April 14, 2018. Mavrakis finished first overall with a time of 1 hour, 45 minutes, 35 seconds. Half marathons are a total of 13.1 miles in length. (U.S. Air Force photo by Airman River Bruce)