
Markus Marthalar
​ABOUT ME
I am Markus Marthaler from Switzerland. I was once a professional swimmer, competing at both national and international levels.
An extraordinary opportunity came my way when a dear friend, a former NCAA basketball champion, approached me with a compelling challenge. He aspires to conquer an IRONMAN, and he sought my expertise to guide him through the swimming segment. Without hesitation, I embraced his request and not only committed to assist him but also decided to participate alongside him in this epic endeavor.
But here’s the real kicker – for me, this IRONMAN Challenge is not just about participation; it’s about pushing the boundaries of what’s possible!
And speaking of pushing boundaries, I recently became a World Champion in Ice Swimming, proving that limits are meant to be shattered!

Upcoming Events
Next Race/Challenges:
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-IRONMAN Hamburg 2025
-Matterhorn Ultraks 2025
-Tobago to Trinidad Crossing (Swimming) 2nd World Record attempt 2025
….much more!
Buy my Training book
If you're looking to complete a long-distance triathlon or want to get your best ever time - this is the product for you!
This book contains 11, crafted swimming sets that are essential for building the endurance for this extreme event. BOOK #1 focusses on Phase 1 (9 sets) and Phase 2 (2 sets) of Markus’s 3-phase training plan. Phase 1 builds endurance. Phase 2 increases the intensity of the sets. Keep your eyes peeled for Book #2 early in 2023!
Books are totally waterproof and perfect to throw into your kitbag, then pop on the side of the pool and you're guided through a professionally designed swimming set.
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Easy to see with foggy goggles, this book clearly shows swimming sets in a way that's clear to understand.
