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Best Ultrarunning Newsletters in 2026

NewsletterFIT tracks 4 newsletters that cover Ultrarunning as a primary topic, 3 of them with posts in the last 90 days. By publicly shown subscriber count, the largest are zachbitter (2K) and Lessons from the Long Run (2K).

Updated Nov 11, 2026 · sorted by publicly shown subscribers · methodology

  1. 1
    zachbitter2K subscribers

    SubstackSeveral times a week · last post 8 days ago

    I have been training and racing endurance events for over 25 years. Professionally, I compete in ultramarathons, coach, and host the Human Performance Outliers Podcast. On here, I write about topics and questions I have…

    Likely audience: ultrarunning enthusiasts

  2. 2
    Lessons from the Long Run2K subscribers

    SubstackMonthly or less · last post 7 days ago

    From recent posts: Lessons from the Long Run publishes first-person essays and race reports covering ultramarathons, training strategies, and athlete performance analysis. The publication targets endurance runners and enthusiasts…

    Likely audience: fitness enthusiasts

  3. 3
    borderlandstrailrunning—

    SubstackEvery two weeks · last post 22 days ago

    From recent posts: This article reflects on the tension between optimizing trail races for profit and preserving the serendipitous, community-driven nature of events like Wasatch 100, using characters from the movie Field of Dreams as a m…

    Likely audience: Trail runners and ultrarunners

  4. 4
    rawlogy labs—

    Substacklast post Apr 10, 2026

    Rawlogy Labs helps people in midlife make better fitness decisions based on how their body actually works now—not how it worked at 25.

    Likely audience: Self-improvement enthusiasts

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