Human Performance Outliers Podcast with Zach Bitter

Human Performance Outliers Podcast with Zach Bitter

Welcome to the Human Performance Outliers Podcast. Your host Zach Bitter, will take you through a series of interesting topics around health, fitness, endurance, running, hybrid athlete training, ultramarathon, and nutrition. Join in for interviews with folks exploring their outer limits and research in a wide variety of sports, fitness, and nutrition.

Episodes

January 9, 2026 77 mins

Jason Fitzgerald is a life long runner, and host of The Strength Running Podcast. In this episode, we discuss if Truett Hanes can reach the Olympic Trials Marathon Qualifying time of 2:16, the increase in strength athletes embracing running, the role of strength in running, and the rise in popularity of muscular endurance and fatigue resistance training strategies.

Find Jason: strengthrunning.com | IG: @ja...

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I ended the year with a race where I didn't meet expectations. These types of experiences offer opportunities about what should be kept, versus what will likely lead to the same mistakes. For this episode, I highlight how I assess a training cycle to tease out the positives and the learning opportunities. 

Endurance Training Simplified Series

ProBio: probionutrition.com/endurance Code: Enduran...

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In this episode, I reflect on my build into this year's Desert Solstice Track Invitational where I plan to target a fast 100 miler and 12 Hour ultramarathon. Included, my history with this event, how things went leading into it, how I structured my training, and my strategy around nutrition, hydration, pacing, and cooling for the event. 

Endurance Training Simplified Series

ProBio: probionutri...

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In this episode, Jeff Mogavero joins the podcast to discuss his exciting year in trail and ultra running, including his impressive second-place finish at Javelina (2024), notable performances at Canyons and Western States, and a nail-biting win at Ultra Trail Cape Town. Jeff dives into the specifics behind these successes, highlighting the impact of fine tuning his hydration strategy. The conversation also explores Jef...

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December 3, 2025 39 mins

For this episode, I dive into some of the fundamental elements to structuring a running program in a sustainable way. This guide is helpful for beginners and runners looking to best organize their current training.

Endurance Training Simplified Series

ProBio: probionutrition.com/endurance Code: Endurance (20% Off)

LMNT: drinkLMNT.com/HPO (free sample pack with purchase)

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Anne Flower burst onto the ultramarathon scene this year by breaking the long standing Leadville 100 Mile Course Record of 31 years at her debut 100 mile race. She turned things around quickly for a very different experience by breaking the 50 Mile World Record at the Tunnel Hill 100/50 three months later. Anne trains and races while maintaining a career as an ER Doctor. 

Anne: Mountains to Mountains - IG:...

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Caitriona Jennings, an Irish long-distance and ultra-distance runner has had a distinguished career spanning marathons, ultras, and international competition. She represented Ireland at the 2012 London Olympics and has set multiple national and world records, particularly in ultra distances. She recently broke the Women's 100 Mile World Record at Tunnel Hill 100 Mile, where she finished in a time ...

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For this episode, I unpack my race at the Equalizer Endurance Run 12 Hour, where I split 11 hours 48 minutes 25 seconds for 100 miles. I share what went into the thought process leading in, how I navigated the day, and dive into my high carb fueling strategy.

Endurance Training Simplified Series

ProBio: probionutrition.com/endurance Code: Endurance (20% Off)

LMNT: dri...

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Kilian Korth recently won the Triple Crown of 200s, which is a three race series, including Tahoe 200, Big Foot 200, and Moab 240. He not only won the series, but all three of these 200+ mile races outright. We dive into many of the topics around the rise of these multi-day ultras.

Kilian: IG @runtoughmindset | Substack: https://runtoughmindset.substack.com/about

Endurance Training Simplified Series

ProBio...

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Nicholas Thompson is the CEO of the Atlantic and an avid runner. He holds the American 50 KM record (age 45–49): In 2021, Thompson set an American record for his age group in the 50K (31 miles), finishing in 3:04:36.

Nicholas Thompson: nicholasthompson.com | IG: @nxthompson | X: @nxthompson

Endurance Training Simplified Series

ProBio: probionutrition.com/endurance Code: E...

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In this episode of the Human Performance Outliers Podcast, Zach Bitter is joined by performance nutritionist Dr. Marc Bubbs to discuss the intricacies of optimizing energy through nutrition. Dr. Marc Bubbs is a Performance Nutritionist, author, speaker and consultant for a portfolio of professional and Olympic athletes and Fortune 100 companies. He is also the co-founder of ProBio Nutrition. They cover various key topics including ...

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October 8, 2025 29 mins

This episode outlines how my high carb experiment has been going after 14-weeks, and as I transitioned into my 100 mile specific peaking phase of training.

Endurance Training Simplified Series

ProBio: probionutrition.com Code: Endurance (20% Off)

LMNT: drinkLMNT.com/HPO (free sample pack with purchase)

deltaG: deltagketones.com Code: BITTER20 (20% Off)

Training Peaks:...

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Dr. Marc Bubbs is a Performance Nutritionist, author, speaker and consultant for a portfolio of professional and Olympic athletes and Fortune 100 companies. He is also the co-founder of ProBio Nutrition. In this episode, we dive deep into recovery and what to consider when training. Part one of this series is episode 456 where we cover gut health.

Endurance Training Simplified Series

...

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September 25, 2025 65 mins

David Roche is an elite ultramarathon athlete, and coach. He recently rebroke his own course record at the Leadville 100 Mile. David has been a big advocate for not just high carbohydrate consumption, but has challenged the limitations of very high in race carbohydrate consumption and what it can do for performance.

David: swaprunning.com | IG: @mountainroche | X: @MountainRoche

Endurance Training Simplified Series

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September 19, 2025 61 mins
Dr. Marc Bubbs is a Performance Nutritionist, author, speaker and consultant for a portfolio of professional and Olympic athletes and Fortune 100 companies. He is also the co-founder of ProBio Nutrition.

Dr. Bubbs previously came on the show for episodes 113 & 275.

Dr. Marc Bubbs: drbubbs.com | IG: @drbubbs | X: @drbubbs

Endurance Training Simplified Series

LMNT: drinkLMNT.com/HPO (free sample ...

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Keira D'Amato had a promising future in running in high school and college, before stepping away for 8-years. When she returned to running, professional trajectory was not on her radar. She found new motivations and identity with running being part of her story, which lead to breaking American Records in the Full and Half Marathon. Her book, "Don't Call It A Comeback," is a great example of how success and...

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Todd Falker is a life long runner, completing 100 marathons and FKT across Michigan (225mi/362k). He is the Product Lead at Puma. With his time at Puma, Todd has become a key member in growth and innovation, helping bring shoes testing at the peak of performance efficiency to market.

Todd: IG: @toddfalker | Linkedin

Endurance Training Simplified Series

LMNT: drinkLMNT.com/HPO (fre...

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September 2, 2025 108 mins

Cameron Hanes is an American bowhunter, endurance athlete, author and outdoorsman best known for his relentless pursuit of backcountry bowhunting in the remote wildernesses. His success in a variety of communities has resulted in bringing large groups of people into the sport of ultramarathon. For this episode, we talk about what draws him to ultramarathon, different approaches and personalities within the...

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After using a low carbohydrate for 14 years over my ultramarathon racing career, I decided for my next 100 mile training cycle and race, to try high carb. I outline why and how the first 8-weeks have gone.

Substack Post: Testing High Carb after 14 years Low Carb

Low Carb Series: My Low Carb Approach

Endurance Training Simplified Series

LMNT: drinkLMNT.com/HPO (free sample pack with purchase)

d...

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Royi Metser joined me to share some discuss how we collect data through wearables like watches, foot pods, and heart rate monitors. We dive into the future of how footwear can add to these data points, in an effort to better optimize mechanical loading.

Royi: @royimetser & @avelorunning - Kickstarter

Endurance Training Simplified Series

LMNT: drinkLMNT.com/HPO (free sample pack with purchase)

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