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PODCAST

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.

sports running

All Episodes

01:05:27

Episode 457: David Roche | King of the Carbs

Human Performance Outliers Podcast with Zach Bitter ·

2025/09/25

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 ProBio: probionutrition.com Code: Endurance (20% Off) LMNT: drinkLMNT.com/HPO (free

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01:01:51

Episode 456: Gut Health | Dr. Marc Bubbs

Human Performance Outliers Podcast with Zach Bitter ·

2025/09/19

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 pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20% Off) CurraNZ: curranzusa.com Code:

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51:37

Episode 455: Keira D'Amato | Don't Call It A Comeback

Human Performance Outliers Podcast with Zach Bitter ·

2025/09/10

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 fulfillment comes in many paths. Keira D'Amato: keiradamato.com | IG: @keiradamato I Strava:

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01:28:29

Episode 454: Running Shoe Innovation | Todd Falker

Human Performance Outliers Podcast with Zach Bitter ·

2025/09/05

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 (free sample pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20% Off) CurraNZ: curranzusa.com Code:

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01:48:44

Episode 453: Cam Hanes | The Growth of Ultra

Human Performance Outliers Podcast with Zach Bitter ·

2025/09/02

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 sport, and what makes the sport so interesting. Cam: cameronhanes.com | IG: @cameronhanes |

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40:43

Episode 452: High Carb - My First 8-Weeks

Human Performance Outliers Podcast with Zach Bitter ·

2025/08/28

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) deltaG: deltagketones.com Code: BITTER20 (20% Off) CurraNZ: curranzusa.com Code: Bitter20deal (20% Off)

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01:02:44

Episode 451: Running Shoes Will Predict Injury | Royi...

Human Performance Outliers Podcast with Zach Bitter ·

2025/08/14

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) deltaG: deltagketones.com Code: BITTER20 (20% Off) Maui Nui Venison: mauinuivenison.com/bitter CurraNZ:

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01:34:04

Episode 450: Fat Oxidation Levers | Dr. Matthew Cook

Human Performance Outliers Podcast with Zach Bitter ·

2025/08/05

Dr. Matthew Cook is a Senior Lecturer in Sport and Exercise Science at the University of Worcester. Dr. Cook has worked with a range of athletes including cyclists and runners. He joined the podcast to discuss the topic of fat oxidation as it pertains to endurance training and racing. Endurance Training Simplified Series LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20% Off) Maui Nui Venison: mauinuivenison.com/bitter CurraNZ: curranzusa.com

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01:29:10

Episode 449: Nick Bare - BPN Moves into Endurance

Human Performance Outliers Podcast with Zach Bitter ·

2025/07/29

Nick Bare is the founder of Bare Performance Nutrition (BPN), and has built a large brand around sharing his journey chasing fitness goals. Recently, Nick and BPN launched a Last Man Standing event called, G1M Ultramarathon on his ranch in Texas. It went viral despite little pre event mainstream ultra media coverage, but rather exploded from participants and BPN creating live and pre/post event content around it. We chat about Nick's current build for an Ironman, the future of BPN Ultramarathon and

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01:17:35

Episode 448: Shoe Talk with Brady Holmer

Human Performance Outliers Podcast with Zach Bitter ·

2025/07/23

Brady joined me to chat up some shoes we have been trying out the last couple of months. Shoes we covered include; Speedland RX:FPY, Tracksmith Eliot Racer, Puma Fast-R Nitro Elite III, New Balance 1080v14 & Rebel v4, ON Cloudsurfer II, Brooks Hyperion Max III & Launch 11. Shoe card specs for the models we discussed are available on Instagram at @hpopodcast Endurance Training Simplified Series LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20% Off)

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01:28:00

Episode 447: Ultramarathon Records at Dead Cow Gully...

Human Performance Outliers Podcast with Zach Bitter ·

2025/07/10

Phil Gore recently broke the Backyard Ultra World Record at Dead Cow Gully, completing 119 yards (6.7 km loop), which totaled 495.86 miles (798.014 kilometers). Phil plans to compete at Big's Backyard, which hosts the Backyard Ultra World Championship. Phil and I dive into all that goes into the preparation and competition within Backyard Ultras, and why bigger numbers are coming. Phil: @phil.gore.ultrarunner | Strava Endurance Training Simplified Series LMNT: drinkLMNT.com/HPO (free sample pack

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37:08

Episode 446: WSER 100 - What We Learned

Human Performance Outliers Podcast with Zach Bitter ·

2025/07/03

WSER 100 is becoming one of the most recognized and high stakes 100 mile ultramarathons for both professionals and ultramarathon participants. we can learn a lot about how participants are preparing and completing this event. Here are some things to consider from what we learned at the 2025 WSER 100. Heat adaptation and in race management The power of race day expectations The psychology around group and competitive pressure Considerations around varied weather events The role of super

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01:34:05

Episode 445: Jeff Garmire | Cocodona, Media, & Doping...

Human Performance Outliers Podcast with Zach Bitter ·

2025/06/30

Jeff Garmire is a professional ultramarathon athlete, coach, author, podcast host, and one of a very few to have participated in all Cocodona 250 events. Long ultras are not even long for Jeff, as he has also completed some monster through hikes like John Muir Trail, Arizona Trail, Continental Divide and more. He is currently gearing up for an unsupported attempt on the Appalachian Trail in August. Endurance Training Simplified Series Zach’s Low Carb Endurance Approach Series LMNT: drinkLMNT.com/HPO

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01:34:27

Episode 444: WSER 100 | Meghan Canfield: 13 Finishes,...

Human Performance Outliers Podcast with Zach Bitter ·

2025/06/24

Meghan Canfield has a deep history and love for the WSER 100 Endurance Run, completing it 13 times and finishing in the top 10 on 10 occasions. She has been a long time friend, and big influence on the ultramarathon community. She joined me to discuss why the WSER 100 is unique, her many experiences with this event, as well as growing with the sport. Meghan: zenithcoaches.com/about-us/meghan-canfield - IG: @runningmegleg Endurance Training Simplified Series LMNT: drinkLMNT.com/HPO (free

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24:08

Episode 443: Ultra Updates - Cheating in Ultra?

Human Performance Outliers Podcast with Zach Bitter ·

2025/06/11

This episode covers some current topics in the ultramarathon world. Topics covered include; big name injuries a result of high volume training and shoes, has ultramarathon growth and access resulted in cheating, Gerda Steyn the Queen of Comrades. Edit: Gerda Steyn has won Comrades 4x: '19, '23, '24, '25 Endurance Training Simplified Series Zach’s Low Carb Endurance Approach Series LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20% Off) Maui Nui

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01:34:51

Episode 442: Wild Hunt Conditioning 1100 Mile Project...

Human Performance Outliers Podcast with Zach Bitter ·

2025/05/29

James Pieratt of Wild Hunt Conditioning joined me to catch up before he kicks off his 1,100 mile journey along the West Coast and discuss the famous Rarámuri Tribe's endurance practices and lifestyle. Audio Endurance Training Simplified Series Zach’s Low Carb Endurance Approach Series LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20% Off) Maui Nui Venison: mauinuivenison.com/bitter CurraNZ: curranzusa.com Code: Bitter20deal

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01:15:38

Episode 441: Cocodona 250 Record Breaking Performance...

Human Performance Outliers Podcast with Zach Bitter ·

2025/05/23

Dan Green recently won the Cocodona 250 and broke the course record along the way with a time of 58:47:18. Prior, Dan has found success running fast times at the Javelina 100, including breaking 13 hours last year and landing on the podium. Dan Green: IG @danisgreen - YouTube: @BargainBoysMedia Endurance Training Simplified Series Zach’s Low Carb Endurance Approach Series LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20% Off) Maui Nui Venison:

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01:28:06

Episode 440: 603 Miles in 6-Days | Megan Eckert

Human Performance Outliers Podcast with Zach Bitter ·

2025/05/19

Megan Eckert is a World Record holding ultramarathon athlete for Mount to Coast, teacher, and coach. She recently broke the women's 6-Day World Record, by completing 603 miles. She holds the women's Backyard Ultra record with 87 laps for 362 miles, qualified for Team USA's 24-Hour World Championship Team, and much more. Endurance Training Simplified Series Zach’s Low Carb Endurance Approach Series LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20%

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01:46:22

Episode 439: Ultra Running Success - Alyssa Clark

Human Performance Outliers Podcast with Zach Bitter ·

2025/05/13

Alyssa Clark has covered a wide range of events in the ultramarathon world. She has wins at Moab 240, HURT 100 Mile, San Diego 100 Mile, Ouray 100 Mile, and Canyons 100 Mile to name a few. Alyssa also battles ulcerative colitis, presenting an additional hurdle when fueling daily and during races that entail a large nutrition variable. Endurance Training Simplified Series Zach’s Low Carb Endurance Approach Series LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com Code:

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01:38:31

Episode 438: Ultra World Records & National...

Human Performance Outliers Podcast with Zach Bitter ·

2025/05/01

Charlie competed in D1 Cross Country and Track & Field for the University of Minnesota. He currently holds the World Record for the 50 Mile, 4:48:21 (5:46/mi). He recently won the USATF 50 KM Road Championships in a time of 2:49:01. Endurance Training Simplified Series Zach’s Low Carb Endurance Approach Series LMNT: drinkLMNT.com/HPO (free sample pack with purchase) deltaG: deltagketones.com Code: BITTER20 (20% Off) Maui Nui Venison: mauinuivenison.com/bitter CurraNZ: curranzusa.com Code:

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