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Author

Nick Tiller

Nick Tiller

Nick Tiller (MRes, Ph.D.) is a senior researcher in exercise physiology at Harbor-UCLA, an experienced ultra-runner, and author of the award-winning book “The Skeptic’s Guide to Sports Science”. Twitter: @NBTiller

  • Should you use AI for your training plan?

    Nick Tiller 04/08/2026
    Nick Tiller 04/08/2026

    Coming back from a run to write about artificial intelligence (AI) and how it’s taking over our lives is somewhat ironic. But it’s a juxtaposition we can no longer ignore. …

    Read more
  • Are We Really Born to Run?

    Nick Tiller 02/11/2026
    Nick Tiller 02/11/2026

    Activity is in our DNA. From our first prenatal kicks to those early, triumphant steps captured on a smartphone, we’re drawn to movement.

    Read more
  • Are Women Closing the Gap?

    Nick Tiller 04/24/2024
    Nick Tiller 04/24/2024

    There’s no obvious physical reason why women and men cannot race ultramarathons in equal numbers, just as they do in nearly every other sport. We hope the examples set by …

    Read more
  • GI Distress, Weight Management and Miles or Muscles?

    Nick Tiller 06/02/2023
    Nick Tiller 06/02/2023

    This article was originally published in the May/June 2023 issue of UltraRunning Magazine. Subscribe today for similar features on ultra training, racing and more. What training is better for getting …

    Read more
  • Running in the Cold, Respiratory Health & Raynaud’s

    Nick Tiller 04/05/2023
    Nick Tiller 04/05/2023

    Many of us contend with training in cold weather, some of us even in polar climates. In these regions, just setting foot out the door can be a challenge. In …

    Read more

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  • Podcast
  • Training Plans
  • Old School Ultras
  • Events
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    • Map View
    • By State
    • By Cutoff
    • Stats
      • Finishes
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