Improving your running performance as a triathlete starts with a good and well-structured base training phase. Scientific Triathlon coaches Mikael Eriksson and Jack Hutchens talk you through their methods, and how you can apply these methods to make 2026 your best running year yet!HIGHLIGHTS AND KEY TOPICS: How to progress run volumeThe importance of the long runShould your endurance running be done in Zone 1 or in Zone 2 as a triathlete?How to execute threshold and VO2max-sessions, and what is the place for each of these in the off-season for tUsing hills, varied surfaces, and treadmills to improve your runningHow to build the strength required for fast running off the bike in triathlonHow to improve your running economyRunning drills and biomechanics work...and Jack's "Surprise Segment": adjusting training to external conditions (weather etc.)DETAILED EPISODE SHOWNOTES: We have detailed shownotes for all of our episodes. The shownotes are basically the podcast episode in written form, that you can read in 5-10 minutes. They are not transcriptions, but they are also not just surface-level overviews. They provide detailed insights and timestamps for each episode, and are great especially for later review, after you've already listened to an episode. The shownotes for today's episode can be found at www.scientifictriathlon.com/base4/LINKS AND RESOURCES: Jack's coaching profile and InstagramTriathlon Base Training Series 1 – How to train smarter in winter to race faster in summerTriathlon Base Training Series 2 – SwimmingTriathlon Base Training Series 3 – CyclingRunning Writings Wind Adjusted calculatorWHAT SHOULD I LISTEN TO NEXT?If you enjoyed this episode, I think you'll love the following episodes:Modern marathon training principles and preparation with running coach John Davis - this is an episode packed with seriously great advice for anybody who's planning on running a marathonJohn Davis – Coaching, physiology, and running calculators | EP#464 - great chat on the intersection of run training, physiology, and dataDavid Roche – The training and racing strategy behind his epic Leadville 100 course record | EP#444 - David is an out-of-the-box thinker, and very inspirational, which makes this an extremely interesting and engaging listenMichele Zanini (part 2) | EP#394 - a detailed discussion on Renato Canova and his training methods, with somebody who actually worked alongside Renato Canova! Run training load, biomechanics, and injury risk with Max Paquette, PhD | EP#321 - I referenced this episode in the chat with Jack, when talking about injury risk on different surfaces. There's lots of other interesting material in here as well. You can find our full episode archives here, where you can filter for categories such as Training, Racing, Science & Physiology, Swimming, Cycling, Running etc.You can also find separate archives for specific series of episodes I've done, specifically