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The Next Loop Endurance Series
How the Next Loop Works
The Next Loop Endurance Series uses a simple, repeatable loop-based format designed to challenge athletes while keeping the environment supportive, visible, and fair.
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Each event is built around a 5K trail loop with hourly starts. Athletes decide how far they go — one loop at a time.
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There is no predetermined distance commitment. Every completed loop counts. Every earned distance is honored.
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​​​Each event offers up to ten hourly loop opportunities, allowing athletes to progress as far as they choose within the event window.
The Course Format
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Every park is different—and that’s part of The Next Loop experience.
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Courses are designed around the trails and terrain available at each venue.
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Most courses will use a 5K / 3.1-mile loop, but some may be slightly longer. Courses will never be shorter than 5K.
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Depending on the park, the course may be a loop, out-and-back, or a combination of both.
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Terrain will vary. Some courses may be flat and fast, while others may be hilly, technical, rugged, or more challenging.
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The exact course distance, layout, surface, and elevation profile will be disclosed for each event.
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Athletes start each round together on the hour and may complete as many rounds as they choose.
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Events are structured around up to 10 consecutive hourly starts.
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The format stays the same. The trail doesn’t have to.
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That’s the point: every Next Loop venue offers a different challenge while keeping the same simple goal—come back for one more.
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This structure creates a shared rhythm, accountability, and a strong sense of community throughout the event.
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Depending on the event, athletes may complete as many as 10 loops within the scheduled event window.
Complete 2 loops and you’ve run a 10K. Finish 5 loops for 25K. Complete all 10 loops and you’ve earned a 50K ultra.
One Format. Endless Ways to Test Yourself.
Who is The Next Loop Endurance Series For?
The Next Loop Endurance Series meets athletes wherever they are in their endurance journey.
New Runners
If you’re building confidence or working toward your first 10K, Next Loop gives you structure, support, and a low-pressure way to test yourself.
Experienced Runners
Training for a marathon or half? Use multiple loops to dial in pacing, nutrition, and mental resilience in a controlled environment.
Ultra Curious
​Ready to go long? Stack loops, push limits, and stop on your terms. Every distance is earned — and honored.