U.S. Army World Class Athlete Sgt. John Nunn of Fort Carson, Colo., finishes ninth in the men's 20,000-meter racewalk with a time of 1 hour, 35 minutes, 31 seconds on the opening day of track and field competition in the 4th CISM Millitary World Games Oct. 14 at Gachibowli Stadium in Hyderabad, India.