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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.

  • When You’re Fit, You’re Fit

    On May 5, 2019, Stephanie Bruce won the USATF Half Marathon Championship by 21 seconds with a time of 1:10:43. The following day, she asked her coach, Ben Rosario, for permission t

    Matt Fitzgerald ·

  • Good Perfectionism and Bad Perfectionism

    Is perfectionism a good thing or a bad thing? If you Google the word and browse through the results, you’ll come away with two different impressions of perfectionism: It’s bad It’s

    Matt Fitzgerald ·

  • The World’s Fastest Ironman?

    First Look at Ironman California The newly-announced Ironman California has infused some much-needed excitement into the 2021 racing season. The inaugural Sacramento event will tak

    Matt Fitzgerald ·

  • Why Runners Should “Listen to the Scientists”

    “We can neither deny what science affirms nor affirm what science denies.” I forget who said this, but whoever said it, it’s true. If you’re not so sure about that, it’s likely bec

    Matt Fitzgerald ·

  • It Just Doesn’t Matter

    I belong to a generation whose every member has seen the movie Meatballs. Among its most famous scenes is the one where Camp North Star head counselor Tripper Harrison (played by B

    Matt Fitzgerald ·

  • How Sex Can Make You a Better Runner

    Let me start with an apology. This post is not about sex. It’s actually about hermeneutics, or the discipline of textual interpretation, as it applies to endurance training. I knew

    Matt Fitzgerald ·

  • Fifty Is the New Whatever

    The 2020 Antrim Coast Half Marathon was exceptional simply by virtue of happening. It was one of the first sizeable road running events to take place after the COVID-19 pandemic sw

    Matt Fitzgerald ·