Germany's Patrick Lange, Sebastian Kienle, Switzerland’s Daniela Ryf, Australia’s Mirinda Carfrae and American Heather Jackson are among the top contenders for the 2018 Ironman World Championships in Kona.
Reigning champions Jan Frodeno and Daniela Ryf successfully defending their titles at the Ironman world championships and history was made in the process.
Ironman returns to Hawaii for the 2016 World Championship, where more than 2,000 athletes, including defending champions Daniela Ryf and Jan Frodeno, will compete for the title.