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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.

  • A Zone By Any Other Name Would Be Complete

    I recently had an e-mail exchange with an athlete regarding training intensity zones. He wanted to know how he could merge the industry standard Zone 1 definition of 50-65% of maxi

    David Warden ·

  • Art Versus Science in Coaching

    “These other young coaches have their science blah blah but they are not as successful.” —Coach Hailye, Out of Thin Air There’s an endurance coach I follow on Twitter who tweets a

    Matt Fitzgerald ·

  • Coaching Mastery

    What is the job of a coach? At the most basic level, it is to help athletes achieve their goals. Sounds reasonable, no? But the problem with this definition of the coach’s role is

    Matt Fitzgerald ·

  • Training with a “Whatever Works” Mindset

    In a recent blog post I mentioned that highly successful endurance athletes have a “whatever works” mindset. Today I’d like to expand on this concept and contrast it with a phenome

    Matt Fitzgerald ·

  • In Defense of Not Crying

    When I was fourteen years old I suffered a catastrophic knee injury during a soccer game. I didn’t even know what an ACL was until the orthopedic surgeon who patched me up (soundin

    Matt Fitzgerald ·

  • All About (Intensity) Balance

    Billy Sperlich is one of the world’s leading experts in the area of training intensity distribution (TID) in endurance sports. I’ve often cited his research, which he conducts out

    Matt Fitzgerald ·

  • Advice for Aging Athletes: Assume Nothing

    On January, 22, 2020, five days after thirty-eight year old Sara Hall set a new American record of 1:07:15 for the half marathon, Women’s Running magazine published an article titl

    Matt Fitzgerald ·