Ned Ned Half Marathon

Nederland, United States • 13 Sep 2025

Nestled in Old Town Nederland, Colorado (elevation around 8,236'), NedNed Trail Fest offers a long-running trail challenge with three race options: a Half Marathon (about 13.3 miles with roughly 1,408 feet of elevation gain on dirt roads and single-track trails), a 10K (about 6.3 miles on dirt roads and trails), and a family-friendly 5K on road. The event blends mountain-town charm with a supportive, festive atmosphere—costumes encouraged and dogs on leash in the 5K. A cupless initiative reduces waste, with optional Hydrapak cups. Proceeds benefit TEENS, Inc., continuing a 43-year tradition. The course showcases Nederland's historic charm and rugged mountain scenery. Visit the organization's website for the most recent information.

Race information

21 km
Half Marathon
10 km
10k
5 km
Visit the organization's website for the most recent information.
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