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80/20 Endurance

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Training science, coaching, and the 80/20 method — from Matt Fitzgerald and the 80/20 Endurance coaching team.

  • Performance Anxiety in Endurance Sports: What’s Happening & What to Do About It

    You’ve put in the training. You’ve done the work. So why does race day sometimes feel like it’s working against you? For many endurance athletes, the missing piece isn’t fitness or nutrition — it’s what’s happening between the ears. In this free live session, mental performance expert Carrie Jackson, M.A., CMPC breaks down the psychobiology…

    Jim Vance ·

  • Race-Day Nerves Are Costing You More Than You Think (Science Says So)

    You’ve heard it before. “Just toughen up. Everyone gets nervous. Push through it.” Good advice — if you want to keep underperforming at the starting line, blow your pacing in the first mile, and make terrible decisions in the back half of a race you trained months for. The truth is, race anxiety isn’t a…

    Jim Vance ·

  • HYROX Run Training: The 80/20 Way

    Is HYROX a strength sport or an endurance sport? Most athletes assume it’s the former — and most athletes are leaving performance on the table because of it. In this Tuesday Teaching session, 80/20 Endurance co-founder and bestselling author Coach Matt Fitzgerald makes the case that HYROX is fundamentally an endurance race — and that…

    Jim Vance ·

  • He Took 12 Years Off. Then He Came Back and Beat His Old Time by Over an Hour!

    80/20 ENDURANCE — ATHLETE STORY “I Didn’t Do Anything Extraordinary. I Simply Followed a Well-Designed System.” How Brad Jansen returned to Ironman 70.3 Geelong at 55 — and finished 65 minutes faster than he did at 42. In 2014, Brad Jansen crossed the finish line at Ironman 70.3 Geelong in 6:30:39. He was 42, placed…

    Jim Vance ·

  • Could Your Smartwatch Be Hurting Your Recovery?

    By Jim Vance When athletes think about recovery, they usually think about the big rocks: sleep, nutrition, hydration, rest days, and managing training load. All of that matters. But there is another piece of recovery that often gets overlooked: mental strain. Recently, I stopped wearing a phone-connected smartwatch and went back to a watch that…

    Jim Vance ·

  • Why 80/20 Training Reduces the Risk of Injuries

    Endurance sports like running and triathlon demand a lot from the human body, bringing a constant underlying risk of overuse injuries. For many athletes, the intuitive approach to getting faster is pushing hard day after day. However, doing too much hard training is not only the most common mistake in endurance sports, but it is…

    Jim Vance ·

  • Scams, Safety, and “Sure-Things” in the Endurance Supplements World

    By 80/20 Endurance | Featuring insights from Elizabeth Inpyn The supplement world is a strange mix of useful tools, expensive “maybe” products, and marketing that’s designed to bypass your critical thinking. For endurance athletes, the stakes are higher than wasting money. Poor-quality supplements can create real health risks, and in some cases even lead to…

    Jim Vance ·

  • Norwegian Training Swim Plans for Triathletes and Swimmers

    The Norwegian training method has reshaped endurance sport. Known for disciplined structure, controlled moderate intensity, and consistent aerobic development, it has produced Olympic champions and world-class triathletes and runners. Now, you can apply that same approach in the pool. Our Norwegian Training Swim Plans are structured swim training plans built for triathletes and swimmers who…

    Jim Vance ·

  • Tuesday Teachings – The Case for 9-Day Training Weeks

    Should You Break Up with the 7-Day Training Week? For more than 4,000 years, humans have organized life around the seven-day week. The rhythm traces back to ancient Babylon, where early astronomers divided the lunar cycle into quarters. That seven-day pattern stuck. It shaped religion, work schedules, school calendars, and eventually, modern life. As endurance…

    Jim Vance ·