Endure Weekly
The Index Long-form Guides

The pieces we keep coming back to.

Substantive long-form for ultrarunners — training, race-prep, the things that actually move your finish time. Mostly written from inside the bib. New guide every other Wednesday.

  1. № 01
    Training 14 min read

    Training for Your First Hundred — 24 Weeks, Plainly

    A real 24-week build for a 50-mpw base runner. Back-to-backs, taper math, what to drop when life gets in the way.

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  2. № 02
    Fueling 11 min read

    Ultra Fueling by the Hour

    A working calorie clock for 12 to 36 hours. Real food vs gels, sodium math, the bonk window.

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  3. № 03
    Crew & pacer 9 min read

    A Field Guide for Crews and Pacers

    What to put in the cooler, what to say at mile eighty, and the small things that quietly save a hundred-miler.

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  4. № 04
    Training 7 min read

    Back-to-Back Long Runs, Weekend by Weekend

    The single most important block in ultra prep — how to build BTBs progressively without breaking yourself.

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