Mace’s Hideout 100

Mace’s Hideout 100 is a challenging and scenic ultra-running event set in the stunning Wet Mountains of Colorado. Participants can choose between a 100-mile or a 50-mile distance, with only 75 spots available for each. The course offers a unique experience as runners traverse diverse ecosystems, from lush, wet forests to arid landscapes, showcasing the region's natural beauty.

The event features significant elevation changes, with a high point of 11,659 feet and a total elevation gain of 22,500 feet. Registration closes on May 10, 2025, and no refunds are offered, although rollovers may be considered for volunteers. Visit the organization's website for the most recent information.