Episode 45: Durability and Fatigue Resistance with Coaching Legend Joe Friel
Joe Friel — author of the Triathlete's Training Bible, co-founder of TrainingPeaks, and one of the most influential coaches in endurance sport — joins me for a conversation centered on durability: what it is, how it is built, and why it matters more than most athletes realize. Joe explains how he developed the concepts of heart rate decoupling and efficiency factor in the early 2000s — more than fifteen years before sports scientists gave durability a name — and walks through the three-phase training structure he uses to build durable athletes from the ground up. The conversation covers zone one and zone two training, the discipline of race-specific pacing, AI's role in coaching, and Joe's revised edition of Fast After 50, due out in June 2026. If you work with long-course athletes, or if you are one, this episode will help you understand why an athlete holds on late in a race versus one who doesn't.
Episode 44: Triathlon Only Has Two Zones
One of the issues with the established training zone systems out there is that, very often, there are more zones than we need, particularly for multisport training and racing. When zones were first established, most of the data came from road cyclists, who have more dynamic events and different demands placed upon them while competing.
In a triathlon—even a short course triathlon—the goal is a steady, moderately-hard effort that you can hold for a long time. In this monologue episode of The Infirmary, I make the case that triathletes need just two training ranges: endurance and speed. I talk about how training actually works — oxygen delivery, blood volume, capillary density, mitochondrial function, muscle fiber recruitment, metabolic efficiency — and show why the moderate and heavy exercise domains can and should be collapsed into a single endurance range for multisport athletes.
I also address why a seven-zone system can actually hurt your training as a triathlete, why "anaerobic threshold" is a misleading term, and why your threshold intervals shouldn't be killing you—they are part of the endurance side of things, NOT intensity. We wrap things up with a practical breakdown of how to apply perceived exertion and training intensity distribution across a season.
Links mentioned in this episode:
Jesse Dukes' one-day "How to Get Good Tape" Los Angeles Workshop: https://jessedukes.com/good-tape-how-to-get-it-2/
Book a free training consultation: https://tinyurl.com/mu8d8tux
Join the Campfire Discord community: https://discord.gg/3Uq989QFX4
Episode 43: The Science of Sweat | How to Actually Fuel and Hydrate for Endurance with Tash Cooper-Smith
Sports scientist and triathlete Tash Cooper-Smith from Precision Fuel & Hydration joins The Infirmary to demystify one of endurance sport's most confusing topics: fueling and hydration. Tash breaks down sweat testing, sodium concentration, carbohydrate intake, gut training, and the real science behind cramping — and why the answer to most athletes' fueling problems is rarely as complicated as they make it. She also shares the story of her own athletic journey, from competitive gymnastics to Kona qualifier in four years, and what that experience taught her about personalizing nutrition for performance.
Episode 41: “‘Metabolic Efficiency’ is Just a Fancy Term for Getting Fit w/Elite Endurance Coach Ryan Bolton
Ryan Bolton is an Olympian, competing at the first Olympic Triathlon in 2000, and he is also a long course champ, winning Ironman Lake Placid in 2002. He coaches America’s top-ranked short-course triathlete, John Reed, and coaches or has coached Olympic Morgan Pearson, triathlon legend Ben Hoffman, recent star Sam Long, and many, many others. Ryan and I talk about a huge range of topics, including artificial intelligence (AI) in the coaching space, why “metabolic efficiency” isn’t anything you need to really pay attention to because it will happen as you get fit, and what it means to focus on “$100,000 wins” instead of “$500 wins.”
You can find Ryan at https://boltonendurance.com/ and on his social media accounts: @coachryanbolton and @boltonendurance. You can (and should!) listen to my interview with Ben Hoffman, whom Ryan Coached for most of Ben’s career.
Episode 40: “Where Is My Mind? Flow State, Focus, and Interval Meditation”
Coaches and athletes talk about the semi-mythical “flow state” a lot, but there is precious little information about how to achieve flow state. Those same coaches and athletes seem to leave it up to chance, but as you all (I hope) know, hope is not a strategy!
In today’s episode, which is the companion piece to the guided meditation just below this one in the feed, we talk about ways to practice presence in your training and racing, since all that flow state is is a state of heightened presence in the moment, when distractions and obstacles seem to fall away. If you read last week’s Substack post, you’ll see the connection here to getting away from thinking, because when we think we tend to make judgments, and if you are judging you are reflecting or ruminating, not present in the moment.
The episode opens with a real athlete meltdown (the kind most of us have had at some point) to explore how perception and self-judgment are the first things standing between you and your best performance. From there, we make a connection between traditional meditation and the way you approach a hard interval — and explains why those two things are basically the same skill. You don't need an app, a cushion, or a monastery. You need your next workout and a willingness to notice where your brain actually goes when things get hard.
Episode 39: “10-Minute Guided Interval Meditation”
The companion piece to Episode 40, this is is a guided meditation that will help you discover what your brain and body wants to do during a difficult interval or during a race. Practice this meditation to improve your ability to maintain a wide, soft, presence that improves your chances of accessing flow state in your training, racing, and life.
Book a free training consult with Chris here: https://tinyurl.com/3b8shdav
Episode 38: From a Ten-Year Break to 9:03 at Roth: Ultraman World Champion Gordo Byrn
Endurance coaching legend Gordo Byrn joins us to discuss his return to racing after a 10-year break. The 2002 Ultraman World Champion and author of From Lemon to Legend breaks down his training philosophy that led to a 9:03 at Challenge Roth. We explore why consistency matters more than any specific workout protocol, how he rebuilt his aerobic base starting with workouts so easy he didn't believe they'd work, and why most athletes overcomplicate their training. Gordo shares his "10, 20, 50" protocol and explains how patient application of ridiculously easy training builds the efficiency required for world-class endurance performance. Whether you're returning to the sport after time away or struggling to maintain consistency, Gordo offers a masterclass in sustainable high-performance training from someone who's mentored a generation of endurance coaches.
Episode 37: Coaching The “Emotional” Athlete
For well over the first half of my professional career, I was labeled an “emotional athlete.” That label seemed to mean, well, something else. In this case that “something else” appears to have been “undisciplined,” if the describer was being nice, or “riding like a stupid asshole,” if the describer wasn’t concerned with hurting my feelings. Faced with this description, which wasn’t ever really elucidated further until later in my career, I set about eradicating the problem. I had a problem with pacing, was the coaching feedback I probably should have received, but without clear guidance on how to pace better I found myself falling into the same pattern: starting too hard in the swim and having to slow down after 2-300m and losing the main pack, burbling self-recrimination to myself for the rest of the swim leg, before climbing out of the water alone and…repeating the exact same pattern on the bike: riding too hard to “catch up,” and then, successful or not at catching up, blowing to bits on the run.
In this episode we explore why we make decisions that don’t serve us as athletes, on and off the race course. We look at how fear was the prevailing emotion behind my explosion at Canada in 2012, and how I would have handled it differently, had I the tools. I hope this episode helps someone determine the shadows they have that are driving behaviors that they don’t like.
The Mankind Project accountability exercise
Chat with Chris about your emotional game, whatever your sport.
Learn about CAMP May 29-June 2
Episode 36: “The Bonfire of Success,” with World Class Coach David Tilbury Davis
David Tilbury-Davis coaches or has coached triathlon household names such as Ashleigh Gentile, Lionel Sanders, Skye Moench, Corinne Abraham, Cody Beals, and Matt Hanson, and he’s been doing so for three decades. In this episode, David explains his “evidence-led” in contrast to “evidence-based” approaches, how he gives athletes autonomy within structured training blocks, and why understanding your race day "poker hand" matters more than race-day magic. We discuss block periodization across the four disciplines of triathlon, how the Norwegian Method is more a product of excellent professionalism, cognitive load in VO2 work, and why even successful performances need analysis. In the moment I found most affecting, David talks about how an athlete deals with setbacks separates the great from the merely good.
Episode 35: Overtrained or Just Under-recovered? The Difference That Could Save Next Season
Overtraining syndrome is rare, serious, and can end your endurance career if you're not careful. In this episode, we break down the differences between functional overreaching (proper training), non-functional overreaching (under-recovery), and true overtraining syndrome (OTS, and again, it's really rare!). You'll learn the warning signs that separate temporary fatigue from something far more concerning, plus we walk through actual case studies of athletes who took years to recover from OTS. We cover the psychological patterns that lead to overtraining, a return-to-training protocol that can get you back on the right track safely, and why consistency beats intensity every single time. If you're training hard right now or coaching athletes through big training blocks, this episode is the reality check you need before it's too late, for you or for your athletes! #triathlon #overtraining #endurancetraining
Episode 34: Cody Beals’ “Pathological Inability to Rest” and Resulting Burnout
Canadian pro triathlete Cody Beals opens up about thoroughly burning out, wondering if his triathlon career was over after Ironman Chattanooga, and what happened when he took his first real break in over 25 years of school, athletics, work, and professional endurance sport. We discuss the difference between intellectual understanding and actual practice when it comes to rest, why so many endurance athletes struggle with exercise addiction and forgoing necessary rest, and how Cody is rebuilding his relationship with the sport that's defined his adult life. We discuss fatigue resistance testing, the merits and difficulties of self-coaching (particularly when we fail to see how tired we are), and why baseline fitness sometimes matters more than peak training volume. Whether you're fighting burnout yourself or just trying to build a more sustainable approach to training, this episode offers practical, real-world advice from someone who's been to the brink of burnout and back.
Cody Beals on Instagram: @cody.beals
Book a coaching consultation: https://www.campfireendurance.com/triathlon-coaching
Episode 33: Why RPE Matters Just As Much As Power: Kolie Moore from Empirical Cycling on Training Smarter
I sit down with one of my long-time coach crushes: Kolie Moore, founder of Empirical Cycling and host of the Empirical Cycling Podcast. Our conversation ranged all over the place, from our favorite cycling and thinking books to what how our “master gland” protects us, but we really focus on why rate of perceived exertion (RPE) matters more than athletes think—even when they already use objective metrics like power and heart rate. Kolie talks about the FTP test he never expected be called “The Kolie Moore FTP Test," explaining why feeling into your threshold works better than traditional 20-minute tests for most athletes.
We talk about why training plans should be “written in sand rather than stone,” (one of my favorite quotes from the show) how your brain integrates signals of stress that power meters can't measure, and why so many athletes train too hard too achieve the results they seek. Kolie shares insights from his work coaching everyone from World Tour cyclists to weekend warriors, revealing that newer athletes often nail RPE-based efforts on the first try because they haven't learned to overthink it yet. Kolie challenges the idea that following a training plan to the letter leads to success, showing instead that sustainable progress comes from learning to listen to your body while using data as a guide rather than gospel.
Episode 31: Why Your Zone 2 Training Feels Painfully Slow (And That's Actually Good)
“Zone 2” training has become incredibly popular in endurance sports, but most athletes misunderstand what it actually does and why it feels so frustratingly slow. In this episode, we debunk the misconceptions to explain how this training intensity establishes your aerobic infrastructure, why comparing yourself to professional athletes derails your progress, and how to embrace slow work now so you can do harder and more effective training later. You'll learn about the physiological adaptations that happen at this intensity, why a monoculture approach to training never works, and how years of consistent aerobic conditioning create the physiological infrastructure that supports faster racing. If your “Zone 2” pace feels slow, this episode explains exactly why that is and what to do about it.
Campfire Endurance Coaching: campfireendurance.com
Instagram: @campfire_endurance
Email me: chris@campfireendurance.com
Episode 30: The Complete Guide to Your First 70.3 Triathlon with Author Brittany Vermeer
Endurance journalist and author Brittany Vermeer joins me to discuss her book, The Complete Guide to Your First 70.3 Triathlon. Brittany has been in endurance media for 17 years, writing for Ironman, Triathlete, and Outside Magazin. Brittany shares the most common mistakes athletes make when tackling their first middle distance race, from nutrition mishaps to pacing errors, and we go beyond training plans to explore the mental game necessary for 70.3 triathlon success, the difference between racing as a test versus a challenge, and why racing by feel is a crucial skill to use alongside objective data. Whether you're preparing for your first 70.3 or looking to improve your approach to long course racing, this episode offers practical wisdom for training smarter and racing stronger.
Episode 29: REPOST | The Norwegian Method with Author Brad Culp
Over the past six weeks, Norwegian athletes have take four of the six podium spots at the Ironman World Championships in Nice, France, and Kailua-Kona, Hawaii. We sat down earlier this year to talk with Brad Culp, author of The Norwegian Method: The Culture, Science, and Humans Behind the Groundbreaking Approach to Elite Endurance Performance.
Brad points out both in his book and in this interview that many Norwegians actually bristle when they hear their manner of training described as “The Norwegian Method,” because the way they train is fairly old-school: all of the principles they adhere to were set decades ago by athletes and coaches from a variety of cultures and ethnicities.
“The Norwegian Method” is, in fact, simply a “high-volume, low-intensity program with threshold sessions controlled by lactate measurement.” It flies in the face of “no-pain, no-gain” training, and requires commitment, consistency, and control over a long period of time. Listening to this episode (and reading Brad’s book!) will help you stop training too hard, reset your timeline for success, and start moving effectively in the direction of your goals.
Episode 28: Training Durability | What Sticks Around and What Disappears First
One of the athletes I work with, Robin Cummings, asked a deceptively simple question about heat training that opened up a much larger conversation: which training adaptations actually last, and which ones disappear the moment you stop training them? The answer reveals your body's efficient "last hired, first fired" approach to fitness —and changes how you should think about periodization.
In this coach-to-coach conversation, Robin, an elite cyclist and coach, and Chris break down the durability hierarchy that governs every training decision, from skills work that can last decades to altitude adaptations that vanish in two weeks. You'll learn why your body operates like a lazy but efficient accountant, maintaining only the adaptations it absolutely needs and dumping everything else the moment the metabolic cost gets too high.
You can find Robin @gender_deer on Instagram, where they post about their racing and where you can talk to them about coaching.
Episode 27: F-ing Fast Past Forty: Pro Josh Monda Keeps Getting Faster
Josh Monda raced as an age grouper for 17 years before turning professional at 40—displaying a patience you don’t often find in endurance sports. Josh’s story includes a five-year hiatus from the sport, personal struggles with addiction, and a long-term approach that eventually unlocked elite-level performance. Now racing for the On Your Left Professional Triathlon Team, Josh shares the training, mental, and tactical insights that enabled his late-career breakthrough.
Josh's story shows that athletic development doesn't follow a universal timeline. His patient approach, willingness to step away when necessary, and focus on consistent, sustainable training over the long haul offers a blueprint for long-term success in endurance sports—regardless of when you start or restart your journey.
Episode 26: How to Choose the Triathlon Coach that Fits YOUR Goals
Choosing an endurance coach might be one of the most important decisions you'll make as an athlete, yet most people approach it completely backwards. This video episode of The Infirmary breaks down how to choose and endurance coach who matches your goals, communication style, and budget, because not everyone needs the same thing in a coaching relationship.
We start with the biggest but oft-ignored question: do you even need a coach in the first place? Some athletes thrive in community-focused training groups, while others need a personalized, data-driven approach that only comes from professional triathlon coaching. Understanding your values—what YOU think is important in your sport—determines everything about your coach search.
Your sporting values and needs should align with your coach's training philosophy. Are you looking for someone who'll craft completely customized training plans, or do you prefer a simple plan with slight modifications? We bring up some red flags to watch for, including coaches who just copy-paste their own training history onto every athlete they work with or push you to purchase their services on the first information call.
Whether you're looking for workout accountability, technical expertise, or someone to help you navigate the mental game, this episode gives you a framework to find exactly what you need without getting caught up in fancy marketing or credentials that don't actually matter for your specific situation.
You can find the article version of this episode here: https://www.campfireendurance.com/how-to-choose-a-triathlon-coach
And you can always book a free 45-minute training analysis here: https://www.campfireendurance.com/triathlon-coaching