WORLD’S TOUGHEST TRIATHLONS
Born in Hawaii in 1978, the classic Ironman triathlon distance of a 3.8km swim, 180km bike and 42.2km marathon run has become the ultimate one-day endurance challenge. For some hardened souls, however, that life-affirming test of mettle isn’t enough.
As iron racing has aged, a new breed of extreme courses has risen, trailblazed by the Norseman in Norway from 2003, and luring athletes with an unparalleled test of their muscular fibres, endurance capabilities and psychological depths. Less a race, more a life-changing venture with more highs and lows than the bike course’s epic profile.
But, with the number rising each season, which is the world’s toughest iron race? Are the classics of Norseman, Celtman and Brutal still riding high? Or have the upstarts of Evergreen and Blacklake ascended even higher? We crunch the stats, study the maps and weather
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