Henning completed the entire 112 mile bike ride with his swim skin still on. Photo: Aaron Hersh

Even the most experienced professional triathletes are learning more about the sport every time they take the starting line. In this video, Denmark’s Rasmus Henning dishes advice on the the importance of focus and how a lack of focus led to a pretty big blunder at last year’s Ironman World Championship in Kona, Hawaii.

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