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How to adjust your triathlon training as you get older – Mark Allen on the 7 ways to make aging a less slippery slope

Aging up? Former IRONMAN World Champion and triathlon legend Mark Allen shares his top tips on how to adjust your training - and your goals - as you get older.

By Mark Allen

Last updated -

16 Jul 2025

From the 76-year-old record holding runner with the VO2 max of a 20-year-old. To the incredible over-80s still tearing it up at IRONMAN and IRONMAN 70.3 World Championships. The world of endurance spo...

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Mark Allen

Mark Allen has to be in any conversation about the greatest triathlete of all time. A six-time IRONMAN World Champion, he won every other title that mattered in the sport and dominated like few others

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