EditorialCompetitors in the swimmming leg of the Ironman World Championship women?s race in Kailua-Kona, Hawaii, Oct. 6, 2022. (Mia A?i/The New York Times)
EditorialSpectators watch the finish line at the 2022 VinFast IRONMAN World Championship in Kailua-Kona, Hawaii, on Oct. 6, 2022. (Mia A'i/The New York Times)
EditorialTimothy O?Donnell, working out in Boulder, Colo., in April, won gold at the world triathlon long distance championships in 2009 and has two top-three finishes at the Ironman World Championship. (Rachel Woolf /The New York Times)
EditorialKristian Blummenfelt of Norway celebrates his gold medal victory as he crosses the finish line in the men's individual triathlon during the 2020 Summer Olympics in Tokyo, July 26, 2021. (Hiroko Masuike/The New York Times)
EditorialKristian Blummenfelt of Norway celebrates his gold medal victory as he crosses the finish line in the men's individual triathlon during the 2020 Summer Olympics in Tokyo, July 26, 2021. (Hiroko Masuike/The New York Times)