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Niwot's Challenge

Sedalia, United States • 2 May 2026

Niwot’s Challenge is the 13th annual invitation-only endurance ordeal along the South Platte River in Sedalia, Colorado. It offers three non-standard distances: a ~24-mile Burn Loop (16 hours), a ~50-mile Chief’s Loop (30 hours), and an ~100-mile Deity loop (60 hours). It is not a race but a transformative test of will, featuring significant off-trail navigation, minimal aid, and no GPS.

The course is unpublished; participants navigate with map and compass and collect codes at Sacred Waypoints. Entry is by invitation with a cap of 40. Notable features include book settings to plant clues, a Tribal Council, and a $1,000 Deity prize.

Atmosphere includes irreverence and a community of dirtbag philosophers. Visit the organization's website for the most recent information.

United States Colorado Sedalia

Race information

Website
100 mi
40800 m+
Deity Status Loop (both Loops Twice)
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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