2016 Kona Underpants Run

In what has become one of the most popular (and wacky!) traditions of Ironman World Championship race week, hundreds of triathletes, supporters and industry members stripped down for the 19th running of the Kona Underpants Run. Word is the organizers will go after a world record for the 20th edition next year. Read about the history and cause of this event here.

More from Kona