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November 1, 2025 53 mins

In this episode, Julia connects once again with endurance legend Mark Kleanthous, a man whose athletic career spans over four decades. Mark began his running journey in the very first London Marathon in 1981, aged just 20, and has never looked back.

Now at 64, he’s completed an incredible 125 marathons, with 71 of them under 3 hours, and has competed in over 1200 events worldwide across running and triathlon. 

A seasoned Ironman finisher and advanced performance coach with more than 25 years’ experience, Mark shares his insights into what keeps him motivated, how he maintains his physical and mental edge, and the philosophy that has sustained him through decades of competitive sport.

This episode is a celebration of endurance, passion, and purpose, a testament to what’s possible with consistency, heart, and an unshakeable belief in lifelong movement.

Find out more about Mark here

Mark as Played

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