After taking a year off from Ironman racing to chase Olympic representation, I've become the go-to guy for comparing the distances. It has been funny to constantly hear the same question: "Which is harder: Ironman or short course?" As one of the few athletes who has been successful at both ITU racing and Ironman, I can weigh in on this debate from a position of experience.

I was a short-course star more than a decade ago (I won a world championship in 1997) and moved to ...

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