$ 0 0 Edrick Floreal leads U.S. track and field to most medals of any nation at IAAF ...Vaught's Views - Sep 1, 2015LEXINGTON, Ky. - The United States track and field/athletics team, with Kentucky's Edrick Floréal as men's head coach, finished the 2015 IAAF World Championships with 18 medals, the most of any nation.