Borderlands Trail and Ultra Running

The Speed Project: The Underground Race Changing Running


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The Speed Project is one of the most unusual events in running—an unsanctioned, no-rules relay that sends teams roughly 340 miles from Los Angeles to Las Vegas (and now across Europe from Chamonix to Marseille). Josh sits down with founder Nils Arend on a rugby field in Albi, France at midnight to talk about how TSP began and why it has become something far bigger than a race.

What started as an extreme endurance challenge through desert heat, sleepless nights, and relentless miles has evolved into a powerful community. The conversation explores the origin story of The Speed Project, the transformations it sparks in participants, and how this underground event created a culture and identity that exists outside the traditional ultrarunning world.

For runners fascinated by the stories, people, and ideas pushing the edges of endurance.

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Topics / Timestamps
  1. 00:00 The Birth of The Speed Project
  2. 06:04 Creating Moments Through Running
  3. 12:04 The Role of a Curator in Running
  4. 19:02 No Rules: A New Approach to Running
  5. 25:05 Building a Community Around The Speed Project
  6. 32:38 The Evolution of The Speed Project
  7. 37:39 Navigating Challenges and Responsibilities
  8. 43:57 Nils Would Have Ended TSP without Scotty Crowe
  9. 45:57 The Influence of Daniel Dart from Time Again
  10. 56:05 Runner's World and TSP

Presented by Kiprun.

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Want to run in the Salt Lake area? Check out the Salt Lake Foothills Trail Races happening May 30, 2026.

And if you haven't checked out Wylder yet, it's worth a look. iOS or Android

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Borderlands Trail and Ultra RunningBy Josh Rosenthal | Ultra Runner

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