
1) Adult male 2) American young adult novel 3) Armored superhero 4) Athlete among athletes 5) Certain triathlete 6) Colleague of Thor 7) Durable athlete 8) Epithet given Lou Gehrig 9) Exceptional athlete 10) Grueling kind of race 11) Hawaii triathlon entrant 12) Iron man 13) Lou gehrig or cal ripken
Found on
https://www.crosswordclues.com/clue/ironman
[surf lifesaving] The sport of Ironman was developed in 1964 in Australia by Mr Valentine Trainor to combine the four main disciplines of surf lifesaving into a single race; swimming, board paddling, ski paddling and running. The sport should not be confused with Ironman triathlon. It is typically run as a single event as a part of a surf l...
Found on
http://en.wikipedia.org/wiki/Ironman_(surf_lifesaving)

The first and most famous triathlon. Held in Kona, Hawaii in October each year, it's comprised of a 2.4-mile ocean swim, 112-mile bike race and 26.2-mile run. Competitors have 17 hours to finish the race.
Found on
https://www.encyclo.co.uk/local/22515
No exact match found.