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Niwot's Challenge

Sedalia, United States • 2-9 May 2026

Niwot's Challenge is a unique, invitation-only endurance event held annually near Sedalia, Colorado, along the South Platte River in the Front Range. Unlike typical races, it emphasizes self-reliance, navigation, and mental toughness over speed. The course is a secret, off-trail gauntlet requiring map and compass skills, with no GPS allowed.

Participants must find "Sacred Waypoints" and complete challenging loops totaling up to 100 miles with significant elevation gain. Aid is minimal, fostering autonomy and resilience. The event fosters a close-knit community of experienced ultrarunners and adventurers, offering a transformative, rugged experience rather than competition or awards. Visit the organization's website for the most recent information.

United States Colorado Sedalia

Race information

Website
100 mi
40800 m+
Deity Status (double Loops)
50 mi
20400 m+
Chief's Loop
24 mi
10000 m+
Burn Loop
Visit the organization's website for the most recent information.
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