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Human Performance Outliers Podcast with Zach Bitter

Feb 27, 2026

Rachel Entrekin is a 2x Cocodona Champion, and course record holder. She joined me for an in-depth interview discussing her transition to professional running, training methods, multi-day race strategy, and the evolution of ultrarunning.

Rachel: rachelentrekin.substack.com | IG: @rachel__entrekin

Endurance Training...


Feb 20, 2026

High carb fueling has been gaining momentum over the past few years. Claire Shorenstein shares some things to consider around this process to make it more sustainable and long lasting. Claire is a sports dietitian who hosts Eat for Endurance. She is a Board-Certified Sports Dietitian (MS RD CSSD) with over a decade...


Feb 16, 2026

The sport of ultramarathon is growing! With that, we have much more exposure to the wide range of events that fall within the ultra category. With growth, we see increased competitive pressure, but not always in a uniform manner. Let’s discuss what this means for the different disciplines within ultramarathon, and...


Feb 6, 2026

Everett Smulders is an American distance runner, coach, and entrepreneur. He became an NCAA All-American and achieved a personal best of 3:58.93 in the indoor mile (2021), going sub-4:00, along with strong marks like 1:48.31 in the 800m and 3:42.86 in the 1500m. After college, he transitioned into ultra running and...