Army Reserve Staff Sgt. John Nunn, a two-time Olympic race walker with the U.S. Army World Class Athlete Program, finished second in the 20-kilometer race walk at the 2013 USA Outdoor Track & Field Championships as a tuneup for the 50-kilometer race walk at the 2013 IAAF World Championships, scheduled for Aug. 10-18, 2013, in Moscow.

United States Army Article