The Infirmary | Fixing Broken Endurance Athletes

Episode 41: “‘Metabolic Efficiency’ is Just a Fancy Term for Getting Fit w/Elite Endurance Coach Ryan Bolton

March 12, 2026·58 min
Episode Description from the Publisher

Ryan Bolton is an Olympian, competing at the first Olympic Triathlon in 2000, and he is also a long course champ, winning Ironman Lake Placid in 2002. He coaches America’s top-ranked short-course triathlete, John Reed, and coaches or has coached Olympic Morgan Pearson, triathlon legend Ben Hoffman, recent star Sam Long, and many, many others. Ryan and I talk about a huge range of topics, including artificial intelligence (AI) in the coaching space, why “metabolic efficiency” isn’t anything you need to really pay attention to because it will happen as you get fit, and what it means to focus on “$100,000 wins” instead of “$500 wins.”You can find Ryan at https://boltonendurance.com/ and on his social media accounts: @coachryanbolton and @boltonendurance. You can (and should!) listen to my interview with Ben Hoffman, whom Ryan Coached for most of Ben’s career.

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