By The Numbers: 2017 Ironman 70.3 World Championship

Approximately 4,500 of the world’s top athletes will head to the “Scenic City” this weekend on Sept. 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 has produced this 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 globe for their shot at the title.
• The 2017 field of athletes will tackle a 1.2-mile (1.9 km) swim in the Tennessee River, followed by a 56-mile (90 km) bicycle ride through Lookout Mountain and into downtown Chattanooga, capped with a 13.1-mile (21 km) run through Downtown Chattanooga along the Tennessee Riverwalk and Riverfront Parkway, finishing at Ross’s landing—all of which must be completed before an eight-and-a-half-hour cutoff time.
• In order to qualify, more than 185,000 age-group athletes competed to earn slots at over 100 70.3 events held worldwide.
• Chattanooga is the sixth city in history to host the Ironman 70.3 World Championship following Clearwater, Florida (USA) (2006-2009), Henderson, Nevada (USA) (2010-2013), Mont-Tremblant, Quebec (CAN) (2014), Zell am See-Kaprun, SalzburgerLand (AUT) (2015), and Mooloolaba, Queensland (AUS) (2016).
• 62 percent of registered participants (2,801 athletes) are male.
• 38 percent of registered participants (1,713 athletes) are female.
• 43 is the average age of male registrants, and 41 is the average age of female registrants.
• Bob Scott (USA) is the oldest participant at 86, while Enrico Piseuna (PHL) and Aaria Alejandra Aguilar (CRI) are the youngest at 18.
• 10 athletes will be celebrating their birthdays on race day.
• 48 of the 50 U.S. states are accounted for, with the greatest number hailing from California. (279), Florida (151), Texas (150), New York (116) and Colorado (103).
• More than 185,000 registered athletes compete in Ironman 70.3 races each year
• Since the series began in 2006, the race has been controlled by Australia (five champions), Germany (five champions) and Great Britain (three champions). The United States and Switzerland have had two winners, while Canada, New Zealand and Spain each have one winner
• Over 2,000 volunteers will help make the race a success.