1. EachPod

The Bitter Truth: World Records, Super Shoes, and Science

Author
Jeff Garmire
Published
Mon 01 Sep 2025
Episode Link
https://podcasters.spotify.com/pod/show/freeoutside/episodes/The-Bitter-Truth-World-Records--Super-Shoes--and-Science-e363i9f

Today on the Free Outside Podcast, I’m joined by world record-holding ultra legend and Wisconsin's third-best export (according to me), Zach Bitter. We dive into everything from the logistics of setting a 100-mile world record to the absurdity of explaining our jobs to boomers ("I'm an influencer" = conversation over). Zach explains the appeal of fixed-time races, what he'd do differently in his record run (spoiler: shoes, fuel, and maybe a time machine), and whether doping is as prevalent in ultrarunning as EPO-fueled Reddit threads make it seem.


We also go deep on the evolution of the sport—tech, talent development, brand dynamics, super shoes, sock science, and what the heck the future might look like if Nike and cooling towels keep having a baby. Zach even dishes on why he stepped away from a long-term brand partnership and how he’s finding freedom—and a better shoe rotation—on his own.


Find Zach online:

https://zachbitter.com/

https://www.instagram.com/zachbitter

https://zachbitter.com/hpo


Chapters


00:00 Introduction to Zach Bitter and His Achievements

03:04 The Importance of Fixed Time Races

05:57 Zach's World Record Experience

08:51 The Evolution of Ultra Running Technology

12:08 The Challenges of Record Keeping in Ultra Running

15:00 Doping in Ultra Running: A Complex Issue

18:07 The Future of Ultra Running and Accessibility

21:03 The Role of Coaching and Development in Running

23:55 Cultural Shifts in Ultra Running

27:05 Conclusion and Final Thoughts

38:16 The Future of Talent Development in Ultra Running

41:39 Brand Building and Athlete Sponsorship Dynamics

44:45 The Evolution of Trail Running Sponsorships

47:58 Nike's Strategic Interest in Trail Running

51:16 The Role of Athlete Managers in Brand Partnerships

55:47 Exploring Authenticity in Product Reviews

01:01:11 Innovations in Running Technology and Future Trends


Subscribe to Substack: http://freeoutside.substack.com


Support this content on patreon: HTTP://patreon.com/freeoutside


Buy my book "Free Outside" on Amazon: https://amzn.to/39LpoSF


Email me to buy a signed copy of my book, "Free Outside" at [email protected]


Watch the movie about setting the record on the Colorado Trail: https://tubitv.com/movies/100019916/free-outside


Website: www.Freeoutside.com

Instagram: thefreeoutside

facebook: www.facebook.com/freeoutside

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