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KoopCast

by Jason Koop

Coach Jason Koop covers training, nutrition and recent happenings in the ultramarathon world.

From the show's RSS feed, refreshed Sep 10, 2026. Source feed.

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Episodes

  1. Koop AI, Unboxed

    We reveal how Koop AI turns 25 years of coaching into an adaptive, terrain-aware training system for trail and ultra runners. We share why we built it, what it does today, where it falls short, and how we’re improving it with real race data. • why serious runners wanted expert validation without...

  2. Brain Endurance Training with Scott Frey, PhD | KoopCast #244

    Dr. Scott H. Frey is an internationally renowned neuroscientist and psychologist, accomplished endurance athlete, author, and teacher. Scott helps individuals and groups identify and realize their aspirations. He can be reached at: [email protected] Want to become a better coach?…

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  3. Insights from Ultramarathon Pacing Strategies with Baptiste Morale | KoopCast #243

    Baptiste Morel-Prieur is a author on a recent paper titled Submaximal force-velocity relationships during mountain ultramarathon: Data from the field Research from the 2023 UTMB offers ground-breaking insights into trail running performance by analyzing how runners handle different gradients...

  4. Monitoring for Overtraining Syndrome with Sophie Herzog, PhD | KoopCast #242

    Sophie Herzog is the Owner and Co-founder and primary performance analyst at the MRYA center for athlete development. MYRA institute: https://www.myracad.com/ Koopcast on HRV https://www.myracad.com/articles/the-athletes-career-insurance-implementation-of-monit...

  5. Training the Gut for Ultramarathons with Isabel Martinez #241

    Isabel Martinez is a Research Sports Dietitian In the Department of Nutrition, Dietetics and Food at Monash University. She is the author of several studies on gut training as well as consults with athletes in this area. The Effect of Gut-Training and Feeding-Challenge on Markers of...

  6. The Brain’s Role in Ultrarunning Performance with Scott Frey, PhD (2024) #240

    Dr. Scott H. Frey is an internationally renowned neuroscientist and psychologist, accomplished endurance athlete, author, and teacher. Scott helps individuals and groups identify and realize their aspirations. He can be reached at: [email protected] Additional resources:...

  7. Durability in Ultrarunning with Michele Zanini, PhD | KoopCast #239

    Michele Zanini is a PhD candidate at Loughborough University as well as the head of Strength and Conditioning for the Italian Triathlon Federation. During this podcast we ddiscuss the concept of durability as it relates to ultramarathon performance. Papers discussed- Durability of Running…

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  8. Polarized or Pyramidal Training for Ultrarunning with Michael Rosenblat, PhD #238

    Michael Rosenblat comes back on the podcast to discuss his new paper exploring what types of interval workouts are most effective for Ultrarunners. Which Training Intensity Distribution Intervention will Produce the Greatest Improvements in Maximal Oxygen Update and Time-Trial Performance in...

  9. High Carbohydrate Intake for Ultrarunners #237

    Aitor Virbay is a Researcher in Exercise Physiologist and Metabolism and the Head of the nutrition and physiology department for the WT INEOS Grenadiers cycling team. He is also a scientific advisor to elite athletes and various companies as well as the Founder and Director of Glut4Science, a...

  10. Elite Athlete Contracts with Kelly Newlon #236

    Curious about the secrets behind elite athlete contract negotiations? Get ready to master the art of securing powerful deals as we sit down with Kelly Newland, an expert who has transitioned from catering to top athletes to advising them on contract strategies. Inspired by her popular Instagram...

  11. Thoughts on DNF with Coaches AJW and Neal Palles #235

    What drives an ultra marathoner to push through the final miles, or decide to DNF (Did Not Finish)? This episode tackles this profound question head-on, drawing from recent high-profile races like UTMB, Run Rabbit Run, and Leadville Trail 100. We explore the mental frameworks and pre-race...

  12. Double Threshold Workouts for Ultrarunning with Rune Talsnes #234

    Coach Jason Koop discusses the merits of double threshold workouts with Rune Talsnes. Comparison of acute physiological responses between one long and two short sessions of moderate-intensity training in endurance athletes. SUBSCRIBE to Research Essentials for Ultrarunning Additional resources…

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  13. High Performance Coaching for Elite Ultrarunners Launch #233

    Coach Jason Koop sits down with Stephanie Howe PhD, Nicole Rasmussen and Sarah Scozzaro to discuss the development and launch of our High Performance Coaching service for elite ultra runners. Info on the High Performance Coaching Program Subscribe to Research Essentials for Ultrarunning…

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  14. The Race Recovery Cycle with CTS Coaches Adam Ferdinandson & Neal Palles #232

    Ever wondered how elite trail and ultra runners manage to stay competitive throughout a jam-packed racing calendar? Join us as CTS coaches Neal Pallas and Adam Ferdinandson unlock the secrets to mastering the race recovery cycle. From developing tailored recovery plans to navigating the…

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  15. Excelling in Chamonix - Coach Roundtable | CTS Coaches Stephanie Howe & Ryne Anderson #231

    Coaches Stephanie Howe, PhD and Ryne Anderson discuss what athletes should and should not be doing in the several days leading up to UTMB. Timeshifter app Additional resources: SUBSCRIBE to Research Essentials for Ultrarunning Buy Training Essentials for Ultrarunning on Amazon or Audible....

  16. Micro-Periodization Strategies with Luca Filipas, PhD #230

    Luca Filipas is a coach, researcher and exercise physiologist based out of Milan Italy. He is the coach of TotalEnergies Pro Cycling Team, Owner and Coach of Endurance Academy and Researcher at the University of Milan. Paper discussed-Beyond the classical periodization: the new frontier of...

  17. Heat Mitigation Strategies with Julien Périard, PhD #229

    Uncover the secrets to excelling in extreme heat with Julian Perriard, a leading expert in environmental physiology. As the Western States Endurance Run approaches, Julian provides cutting-edge strategies for heat mitigation, including ice baths, slurries, and menthol gels. With rising global...

  18. Western States 100 Masterclass with Coach AJW #228

    Coach AJW discuss all things Western States 100 including how to manage before and during race. This podcast is a must have for any athlete and crew preparing for the Western States 100. Crack a Brew with AJW Heat Acclimation Strategies with Julién Periard Additional resources: SUBSCRIBE to...

  19. Sports Nutrition Labels & Quality Control with Untapped CEO Doug Brown #227

    Doug Brown is the founder and CEO of Untapped. In this discussion we review how nutrition labels are created and what the quality control process looks like for a nutrition product that is derived from natural components. Additional resources: SUBSCRIBE to Research Essentials for Ultrarunning Buy...

  20. Spring Energy - Nutrition Integrity and Transparency #226

    Our Research for Essentials for Ultrarunning team discuss the recent Spring Energy debacle. Access the Spring reports Stephanie Howe-https://trainright.com/coaches/stephanie-howe/ Nick Tiller-https://skepticalinquirer.org Jim Rutberg-https://trainright.com/coaches/jim-rutberg/ Join Coach Jason...

  21. Taking the Right Advice with CTS Coaches Anne Tisdell and Ryne Anderson #225

    Coaches Anne Tisdell and Ryne Anderson discuss how to take the right advice from your friends and training partners through the lens of how we take our own training and racing and translate it to athletes. Additional resources: SUBSCRIBE to Research Essentials for Ultrarunning Buy Training...

  22. Strategies for High-Quality Training with CTS Coach Adam Pulford #224

    Jason Koop and Adam Pulford discuss training quality and how we can define and improve it. Study on training quality- https://journals.humankinetics.com/view/journals/ijspp/18/5/article-p557.xml Additional resources: SUBSCRIBE to Research Essentials for Ultrarunning Buy Training Essentials for...

  23. Anti-Doping Framework for Ultrarunning with Gabe Baida #223

    View all show notes and timestamps on the KoopCast website. Episode overview: Gabe Baida is a 15 year anti-doping professional. He was previously at USADA, where he served as the director of UFC and Premiere Sport. He is now the Executive Director of InnoVero. Episode highlights: (25:52) No fault...

  24. Anti-Doping Solutions for Ultrarunning with Corrine Malcolm #222

    View all show notes and timestamps on the KoopCast website. Episode overview: Corrine Malcolm is a coach, podcaster, on-air personality, and the head of the Pro Trail Runners Association anti-doping working group. Episode highlights: (14:34) Anti-doping goals in ultra-trail: an internationally...

  25. Anti-Doping Education for Ultrarunners with Tammy Hanson, USADA Elite Education Director #221

    View all show notes and timestamps on the KoopCast website. Episode overview: Tammy Hanson currently serves as the Elite Education Director at the U.S. Anti-Doping Agency (USADA). In this position, she oversees the day-to-day operations of USADA’s education and engagement initiatives, drives...

  26. NSAIDs in Ultrarunning with Eve Pannone #220

    View all show notes and timestamps on the KoopCast website. Episode overview: In this first of four episodes on drugs in ultramarathon running, Eve Pannone joins the podcast to discuss NSAIDs in endurance sport. The widespread use of NSAIDs like ibuprofen (Advil) and naproxen (Aleve) in...

  27. Exploring the Pain Cave with Lloyd Emeka MSc, PhD(c) #219

    View all show notes and timestamps on the KoopCast website. Episode overview: Lloyd completed a BA (hons) in Business Administration at Staffordshire University and an MSc in Marketing Management at Aston University. He then proceeded to work in the advertising industry for several years before...

  28. Omega 3 & Vitamin D for Exercise Induced Muscle Damage with Dan Owens, PhD #218

    ​​View all show notes and timestamps on the KoopCast website. Episode overview: Dan Owens is an associate professor in cellular and molecular exercise physiology at Liverpool John Moores University, Liverpool (UK). His research sits at the crossroads between nutrition, muscle metabolism, and…

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  29. Supplement Selection for Ultrarunning with Floris Wardenaar, PhD #217

    View all show notes and timestamps on the KoopCast website. Episode overview: Floris Wardenaar is an assistant professor at the College of Health Solutions since September 2017 with expertise in Performance Nutrition. Floris's education: PhD Dietary exposure assessment in athletes, Wageningen...

  30. Differences Between Elite Road and Trail Runners with Frederic Sabater Pastor, PhD (2023) #216

    View all show notes and timestamps on the KoopCast website. Episode overview: Frederic Sabater Pastor is a CTS ultrarunning coach with a PH.D. in Exercise Physiology and experiences coaching athletes for a variety of challenges. He is also a Postdoctoral researcher at the Inter-university Lab of...

  31. The Brain’s Role in Ultrarunning Performance with Scott Frey, PhD #215

    View all show notes and timestamps on the KoopCast website. Episode overview: Dr. Scott H. Frey is an internationally renowned neuroscientist, psychologist, accomplished endurance athlete, author, and teacher. Scott helps individuals and groups identify and realize their aspirations. He can be...

  32. Developing Durability for Ultrarunners with Nicolas Berger, PhD #214

    View all show notes and timestamps on the KoopCast website. Episode overview: Dr. Nicolas Berger is a Senior Lecturer in Sport & Exercise at Teeside University’s Centre for Rehabilitation. In this episode, we discuss the emerging topic of durability in endurance sports and how it applies to...

  33. Strength Training Masterclass with CTS Coaches Sarah Scozzaro and Nicole Rasmussen #213

    View all show notes and timestamps on the KoopCast website. Episode overview: CTS Coaches Sarah Scozzaro and Nicole Rasmussen go over how to set up a strength program for ultrarunners. We discuss strength training for injury resiliency, performance goals, and health, and discuss tools that you…

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  34. Weight Loss for Ultrarunners with Stephanie Howe, PhD #212

    View all show notes and timestamps on the KoopCast website. Episode overview: Stephanie Howe, Ph.D. is a CTS Pro Coach and nutritionist. She has a Ph.D. in Nutrition & Exercise Science from Oregon State University and a Sports Nutrition Diploma from the International Olympic Committee. She is…

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  35. How to Set Up Your Season with CTS Coaches AJW and Cliff Pittman #211

    View all show notes and timestamps on the KoopCast website. Episode overview: If you are not planning out your season by now you should be! CTS coaches Cliff Pittman and AJW discuss how to set up your season with the right anchor points, how to schedule a B race and how to keep the focus on the...

  36. Figuring out Failure with Neal Palles #210

    View all show notes and timestamps on the KoopCast website. Episode overview: Neal Palles is a Licensed Clinical Social Worker, Mental Performance Coach, and CTS Ultrarunning coach based in Longmont, Colorado. Have you ever felt the weight of failure pressing down on you after a season of unmet...

  37. Winter Training for Ultrarunning with CTS Coaches Stephanie Howe, PhD and John Fitzgerald #209

    View all show notes and timestamps on the KoopCast website. Episode overview: CTS Coaches John Fitzgerald and Stephanie Howe discuss how to navigate winter training for Ultramarathon. Episode highlights: (14:39) Structuring the winter season around races: athletes who peak at different times of…

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  38. Hydration Consideration for Female Ultrarunners with Nidia Rodriguez-Sanchez, PhD #208

    View all show notes and timestamps on the KoopCast website. Episode overview: Nidia Rodriguez-Sanchez, Ph.D., has spent her career in the field of sports nutrition and physiology. She earned her BSc in Dietetics / Clinical Nutrition and later pursued postgraduate studies in Anthropometry and...

  39. Navigating Pseudoscience with Nick Tiller, PhD #207

    View all show notes and timestamps on the KoopCast website. Episode overview: Nick Tiller, PhD is an exercise scientist at Harbor-UCLA. He is also the author of The Skeptics Guide to Sports Science, a columnist for Ultrarunning Magazine and the Skeptical Inquirer. Episode highlights: (9:09)…

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  40. Collagen Supplementation for Ultrarunning with Luc van Loon, PhD and Keith Baar PhD #206

    View all show notes and timestamps on the KoopCast website. Episode overview: Luc van Loon is a Professor of Physiology of Exercise and Nutrition and Head of the M3-research group at the Department of Human Biology at Maastricht University. Luc has an international research standing in the area…

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  41. Carbohydrate Periodization for Ultrarunning with Jeff Rothschild, RD, PhD #205

    View all show notes and timestamps on the KoopCast website. Episode overview: Jeff Rothschild is a registered dietician, PhD, and research associate at Sports Performance Research Institute New Zealand. Ever been curious about the science behind fueling your athletic performance? Look no further,...

  42. What Coaches Can Do To Be Relevant in the Next 10 years with Jim Rutberg #204

    View all show notes and timestamps on the KoopCast website. Episode overview: Jim Rutberg is the Content Director for CTS. He has co-authored ten books on training and sports nutrition, including “The Time-Crunched Cyclist” and “Training Essentials for Ultrarunning,” and produced more than 20...

  43. The Business of Ultramarathon Coaching-Hosted by Dirk Friel with Jason Koop, Heather Hart and Jeff Browning #203

    View all show notes and timestamps on the KoopCast website. Episode overview: Coaching industry veteran and Training Peaks’ co-founder Dirk Friel takes over the KoopCast to discuss the business of ultramarathon coaching. The panel of coaches and coaching business owners includes Jason Koop…

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  44. Weighted Vests in Ultrarunning with Diego Jaén-Carrillo PhD #202

    View all show notes and timestamps on the KoopCast website. Episode overview: Diego Jaén-Carrillo PhD is a postdoctoral researcher at Universität Innsbruck. Weighted vests are a common intervention used by both coaches and athletes, yet the existing research on weighted vests is virtually...

  45. Coach Roundtable - What We Screwed Up, and How We're Fixing It | Nicole Rasmussen, Sarah Scozzaro, Ryne Anderson #201

    View all show notes and timestamps on the KoopCast website. Episode overview: Didn't we all, at some point, feel that prick of regret at a mistake made or a lesson learned the hard way? As your devoted trail and ultra running coaches, we've had our share of missteps over the past year. From...

  46. Exploring the Limits of Ultrarunning with Nicholas Berger, PhD #200

    View all show notes and timestamps on the KoopCast website. Episode overview: Dr. Nicolas Berger is a Senior Lecturer in Sport & Exercise at Teeside University’s Centre for Rehabilitation. In this episode we discuss Nic’s new study on the limits of ultramarathon performance, which brings together…

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  47. Coach Roundtable - What we learned this year with Addison Smith and Adam Ferdinandson #199

    View all show notes and timestamps on the KoopCast website. Episode overview: CTS coaches Addison Smith and Adam Ferdinandson join the podcast for an insightful coach roundatble. We discuss subjectivity from coach participation in sport, the delicate balance of simultaneously supporting and...

  48. Mastering Interval Training for Ultrarunners with Michael Rosenblat, PhD #198

    View all show notes and timestamps on the KoopCast website. Episode overview: Michael Rosenblat is a researcher and coach with expertise in kinesiology, physiotherapy, and exercise science. In this episode we discuss his three most recent meta-analyses on interval structure, including how to...

  49. Anti-doping Solutions for Ultrarunning Part 1-USADA and Dr. Fedoruk (2021) #197

    View all show notes and timestamps on the KoopCast website. Episode overview: Dr. Fedoruk is the Chief Science Officer for USADA. In this episode, we discuss the landscape of anti-doping solutions and what USADA does to combat doping within the sports they have jurisdiction over. Episode...

  50. High Performance Coaching in Ultrarunning with Guillaume Millet & Vincent Viet #196

    View all show notes and timestamps on the KoopCast website. Episode overview: Guillaume Millet and Vincent Viet manage the Salomon High-performance program for their elite athletes. Episode highlights: (12:57) HPC coaching structure: team sports the U.S., the high performance coordinator…

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Topics in this show

Click any topic to search every transcript on PodParley for moments someone mentioned it.

About this show

Coach Jason Koop covers training, nutrition and recent happenings in the ultramarathon world.

Hosted by

Jason Koop

Frequently asked questions

How many episodes does KoopCast have?

KoopCast has 246 episodes on PodParley. The most recent episode was published on October 8, 2025.

What is KoopCast about?

Coach Jason Koop covers training, nutrition and recent happenings in the ultramarathon world.

How often does KoopCast release new episodes?

KoopCast publishes weekly, based on its 246 episodes since November 2019.

Who hosts KoopCast?

KoopCast is created and hosted by Jason Koop.
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