Approximately 4,500 of the world’s top athletes will head to the “Scenic City” on September 9 and 10 to compete in the 2017 IRONMAN® 70.3® World Championship. The event returns to U.S. soil for the first time in four years, and also marks the first time that the event will take place over two days. IRONMAN, a Wanda Sports Holding company, has produced this world-class event since 2006, with global rotation beginning in 2014. With athletes hailing from 90 countries, regions and territories, North America leads the way with 52 percent of the athletes registered to race in the IRONMAN 70.3 World Championship. Following North America, Europe accounts for 25 percent, while Asia-Pacific accounts for 12 percent of the field. The United States of America is the most represented nation with 1,853 registered competitors, followed by Canada (264), Australia (232) and the United Kingdom (213). Other athletes from countries as far as Indonesia, Kazakhstan and Serbia are traveling around the glob...