Ironman’s wave of future begins with staggered start times

West Hawaii Today file photo Furious swimming scenes like this one off Kailua Pier at the beginning of the 2015 Ironman World Championship should be less commonplace now that the race has been separated into 11 start groups.

Ironman announced in a news release in June a new swim start protocol that will be implemented for the 2019 edition of the world championship race in Kona.