We brought some joyful and fluid-tastic vibes to this great episode! The main topic involved us picking our jaws off the floor as records were absolutely annihilated at the JFK 50 Mile, America's oldest ultramarathon. We have some inside info on how David Sinclair set the record, which we think could be Ultra Performance of the Year. Plus we worshi…

You can smell the excitement on this amazing episode! The main training topic was on David's favorite study of 2024, which caused major changes in his training approach. The study found some potential mechanisms for improved fatigue resistance, but we take it a step further into theories about solving for a puzzle that has flummoxed coaches and res…

We celebrated huge beating genius machines before this awesome episode! The main training topic was on 10 ways our training approaches changed for Leadville and Javelina. Throughout the process of preparing for 100 miles, we made itty bitty alterations that sometimes became big shifts in how our plans usually look. We break down each of them and ho…

We answered tons of amazing listener questions on this great episode! We approached Leadville and Javelina like science experiments, and like all good science experiments, we want to share everything before starting a new experiment for the Western States 100. This one is full of sexy science, theory, psychology, nutrition, and so much more! Our ph…

We ventured into the unknown at the Javelina 100 Mile, and we're coming back with a celebration to share! This episode is all about processing a life-changing weekend where David won Javelina in 12 hours, 45 minutes to earn a Golden Ticket to the Western States 100. There was one defining feature of the day: HEAT. Race day featured record temperatu…

We reached deep into the BELIEVE BAG before this great episode! It started out with all of our thoughts ahead of the Javelina 100 Miler this weekend. This journey into the unknown has it all: fears, dread, and doubt right alongside excitement, celebration, and DMX. We hope this exploration gives you a tailwind that pushes you to chase scary dreams.…

We put on all of our pants and jackets to record this HOT episode! The main training topic is on the wild science of heat suit training. In 2021, a case study revealed that simply wearing a couple layers while doing easy biking could rapidly expand hemoglobin mass, which could improve performance in all conditions. Numerous other studies support th…

We made loud grunting noises to celebrate recording this great episode! A primary training discussion was on putting the finishing touches on the quick build for the Javelina 100 Miler. It's getting very, very real. Confidence is rising, and falling, and falling some more, then rising again. We bring you into the process to feel just how hard it al…

We loaded up on some "awake" tea to feel extra caffeinated for this spicy episode! Listeners send in such great questions, and it was so fun to get down and dirty with some fascinating topics. It's called a "no secrets" Q+A because we often see conversations with elite athletes and coaches where it's clear that we aren't getting the full picture. O…

We marveled at the athletic performance of the year to prepare for this great episode! It kicked off with us picking our jaws up off the floor, in awe of Tara Dower's overall record on the Appalachian Trail. Coach Megan delves into what made it possible (strides and speed) and what sets Tara apart (being a superhero). This achievement will take dec…

We slurped down a truly inspiring amount of carbohydrates before recording this great episode! The main topic was a new study with a fascinating design, equalizing carb intake across a day, but modulating the quantity consumed in the post-exercise window. There were major changes in next-day performance! Training can often be an adaptation contest,…

We filled the pauses in conversation with all of our deepest confessions before recording this great episode! A main topic was how we thought about strength work and heat training in the Leadville 100 build. While David's mileage wasn't wildly high, he made some big changes in the last year that harness the power of heat to spur hematological chang…

We put lubrication in all the right places before this amazing episode! The main topic was a rundown of our big takeaways from the UTMB races, the most important week of the trail running year. Times get faster and faster... but carnage comes with it. We talk about how the fueling revolution may be impacting races, both in terms of speed and GI iss…

We had so much fun with this no-secrets episode on the Leadville 100 Mile course record! We answered a couple dozen listener questions on everything from training theory to race execution to supplements. We even detailed some harrowing stories about post-race recovery that will leave you breathless (from laughing). Throughout the history of the pod…

We pinched each other to make sure it wasn’t all a dream before recording this celebration episode! This one was all about processing David’s course record run at the Leadville 100 Miler. For 19 years, Matt Carpenter’s Leadville record of 15:42 has been talked about as one of the most untouchable marks in running. But a lot has happened since 2005,…

We felt infinite gratitude to not feel infinite stomach acid before this celebration episode! The main training topic was Kilian Jornet's training to win Sierre Zinal, the Olympics of trail running. The GOAT described his weekly volume, approach to training structure, and all of his workouts. We broke down what it means for everyone else! We also t…

We considered buying our very own pommel horse before this amazing episode! The main topic was a new study that may show a big reason for performance leaps across sports. In the study, just a few weeks of heat training caused 3% improvements in hemoglobin mass, associated with jumps in fitness. However, the adaptations reversed to baseline rapidly.…

We brought hearts full of love to this episode! We start by remembering the amazing Maddie Giegold, an ultrarunner and doctor who passed away suddenly several days before finishing her medical residency. Maddie was so full of life and love. The Universe will always be brighter because she was here. The main science topic was on data connecting micr…

We had a party with our insect friends before recording this great episode! A big topic was answering a listener question on how to use heart rate zones in practice when the data can seem so noisy. We think that calibrating effort is incredibly helpful for athletes... as long as they keep it simple. We break down what that looks like! Plus, we trie…

Our GPS watches told us we were "Peaking" for this great episode! The main topic was inspiration from the Hardrock 100. Ludovic Pommeret won just before his 49th birthday, setting a course record in the process, redefining what's possible with age. Courtney Dauwalter set her 3rd consecutive course record, once again proving that she's the GOAT. We …

We took some Big Leadville Energy into this great episode! The main topic was the Silver Rush 50 Miler, which David raced on Saturday. The last few months have been a doozy, starting with the bike accident and severe concussion back in early April. It has been hard at times, in ways that go a lot deeper than athletics. This episode is about falling…

We were flying high after the best sports week of all time for this amazing episode! The main topic was the 2024 Western States 100, the most insane race we have ever seen. It was not a cool year, but the times were wildly faster across the board, building on massive speed breakthroughs from 2023. What are we seeing? The same trends are present on …

We are coming to you from Eugene, Oregon at the Olympic Track Trials for this amazing episode! The main topic was on some inspiring stories from the first half of the Trials, which feels like the ultimate party of the US running world. And like most good parties, it features a lot of Snoop Dogg. We also talked about lessons from Broken Arrow, inclu…

We thought long and hard about alien physiology before recording this great episode! The main topic was a wildly cool wrinkle in training science. Across all different types of events, the most predictive variable for performance is often how fast an athlete can go at VO2 max effort. That could have massive implications for how we think about train…

We put on some bouncy shoes for optimal energy return before this great episode! The main training discussion was a new study on a speed protocol that caused major improvements in high-level runners. We zoom out to discuss other studies that have similar findings, including one that provided a theory for mechanisms in slow-twitch muscle fibers. The…

We were emotionally hardened by some sleepless nights before recording this special episode! A couple months ago, a brilliant podcast listener on Reddit published her predictions that Spring Energy's Awesomesauce gel had incorrect calorie counts. Three weeks ago, those findings were confirmed by a German lab. This past week, everything exploded on …

We ate a bag of performance waffles to get ready for this awesome episode! The first topic was a follow-up on the controversy about a gel that may have mislabeled its calorie count. We discuss emails from listeners that provide more context, along with what it might mean for food labeling generally. It's a wild, wild world out there! The main train…

We gathered liquid courage (chugging from a gallon of chocolate milk) for this great episode! The main training topic comes from the world of track, where athletes are probing the limits of human physiology. Because the margins separating athletes on the track are so small, there are takeaways for all endurance performance. Raise the ceiling to rai…

We sat in a stew of uncertainty before recording this awesome (and healing) episode! The main training topic was a pair of studies looking at longevity outcomes in serious athletes. Extra-hard training seems to have longevity benefits compared to general population lifestyles, contrary to some warnings you might hear! Let's all plan on doing uphill…

We celebrated a week with minimal life drama (YAY) before recording this great episode! The main training topic was a new study monitoring response v. non-response. Imagine two similar athletes who are given the the same training program. One could have breakthroughs, and one could face physical disaster. Why? We use the study to talk about how we …

We got the surprise of our lives before recording this dazed-and-excited episode! The main topic was the Canyons 100k. It was Megan's dream race, and you may have seen... she did not start. We had some incredibly surprising news right before we boarded our flight to California for the race, and we process it in real-time on the episode. Hopefully t…

We sipped on some of the finest, chalkiest electrolyte drink for this great episode! The main topic was gearing up for big events, spurred by Megan's upcoming adventure at the Canyons 100k. After the health issues, we were unsure whether we'd ever be able to have this sort of discussion on the podcast, and listeners have been there every step of th…

We got extremely hyped watching the Boston Marathon before recording this amazing episode! The main training topic was a new study connecting carb intake during exercise to reduced central fatigue, leading to the researchers theorizing a link between "excess" carbs and improved neuromuscular function. The study protocol was weird and wild! Does thi…

We enjoyed an all-expenses-paid ambulance trip before this amazing episode! The main topic was David's harrowing bike crash. The incredible paramedics said that the impact launched him 100 feet through the air. Somehow, the concussion, a broken wrist, and lacerations seem to be the worst of it. The legs are 100%! And as all runners know, wrists and…

It's the 200th episode, and we brought so much gratitude to the party! The main topic was reflecting on 5 ways our approach to endurance training/coaching has changed, based on new research and real-world experience. The topics buffet is packed with goodness: extreme-carb fueling during hard efforts, heavier strength work (in moderation), less need…

We rode the inspiration wave from witnessing history for this great episode! The main topic was on the mind-boggling finish from Jasmin Paris at the Barkley Marathons. She is the first woman to finish the race, and we think it will go down as one of the most impressive endurance achievements ever. We break down why that is, and we proceed to eat so…

We vibed with a new playlist (Taylor's version) before this great episode! The main training topic was a new study on fatigue resistance, which used a novel protocol for testing durability involving different levels of intensity. "Durability" research may be the most exciting part of modern performance science, and we broaden it out with real-world…

We made questionable playlist decisions (arf arf) to get hyped for this amazing episode! The big topic was Lululemon's FURTHER event, a 6-day ultra in the California desert, full of intrigue and world records. Megan was on the ground as coach and science advisor, and she returns with a report that will blow your minds. What happens when a company i…

We ate some business PB+Js to fuel up for this great episode! The main training topic was on fueling like your athletic life depends on it. Erase all of your preconceived notions and ask this question: When you're already tired and you're still a couple hours away from home, what do you do? If you're anything like many of the best endurance athlete…

We put on some see-through pants for this great episode! The main training topic was on double workouts, involving two moderate sessions in a single day. Norwegian athletes are notorious for their double threshold days, and over the last few years, we have been using an adapted approach with the treadmill or cross-training that can be implemented f…

We glugged some sugar with coffee and cream for this awesome episode! The main training topic was a new study breaking down the training of the 24-hour world-record holder. It gave us an excuse to talk about the trajectory of ultra training, and how we're in the midst of a fundamental shift in the sport at all levels. We also talked about a cool st…

We just got back from a joyful and intense weekend at the Black Canyon 100k, arguably the most competitive ultra on US soil! Endurance sports are in the midst of a fundamental shift in what's possible, from the winners to the final finishers. This year's Black Canyon was a mind-blowing demonstration of how the game is changing, with tons of lessons…

It was the ultimate celebration episode, on a high from watching the Olympic Marathon Trials! We talked about some of our favorite storylines from the most exciting race on US soil: training partners finishing together (and our conspiracy theory), the next big star is born for female marathoners, an Olympian who walked onto her D2 college team, and…

We rolled up our shorts to their full upright and locked positions for this spicy episode! A big topic was the final installment in our trilogy of updates on tensions surrounding UTMB. The letter sent by Kilian Jornet and Zach Miller to fellow pros added fuel to a fire that started at the grassroots level, finally leading to a response from UTMB. W…

We chugged some chocolate whole milk to fuel this amazing episode! The main training topic was on why testosterone levels are relevant for all endurance athletes. While individuals have different genetic set-points for testosterone, studies on men and women show that training and fueling interventions can change baseline levels. Those changes can b…

We had fire (and iron) flowing through our veins for this awesome episode! There is a big development in the UTMB controversy: reports that legends Kilian Jornet and Zach Miller sent a letter to some of the best athletes in the world considering a boycott of this year's races. We talk about what we think it means through the lens of negotiation the…

We ate the world's largest lunches to get ready for this awesome episode! The main training discussion was on tempo running. What even is a tempo? Coaches and physiologists all disagree, leaving athletes in an uncertain spot. We cut through the noise with the help of a 2019 study looking at what training elements most strongly correlate with long-t…

We are coming in hot with some big 2024 energy! The main topic was a deeper science corner breakdown of the new study that challenges conventional wisdom on protein consumption. This research could change how you think about daily fueling, with potential benefits for adaptation and recovery. We geek out on the methodology, featuring an isotope-tagg…

Welcome to a very special holiday episode! We started with our thoughts on a new study on protein intake that challenges everything we previously thought about protein metabolism. It's one of our favorite studies of all time, and it's destined to reshape the field of nutrition science! But the bulk of the episode was reading from "secrets" sent in …

We brought some big-time celebration vibes for this holiday episode! The main training topic was on the body of literature connecting strength work to running economy improvements. Wherever you look, there seem to be agreements mixed with contradictions, and we sprinkle some spicy controversy flakes on top of it all. Our take? Endurance athletes sh…