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Chicago 11 Hour Endurance Run

Willow Springs, United States • 17 May 2025

The Chicago Yeti 7-11 Hour Endurance Run is a unique trail running event that combines endurance, camaraderie, and a fun atmosphere. Set in Willow Springs, Illinois, participants can choose between 7-hour and 11-hour challenges on a scenic 4-mile loop through the Palos Preserves. The course features a mix of single-track and double-track trails, offering a variety of terrains for all skill levels. The event is known for its quirky aid station, serving gourmet snacks and drinks. With professional timing and a focus on community, this race celebrates the spirit of trail running in a lively, inclusive environment. Visit the organization's website for the most recent information.

United States Illinois Willow Springs

Race information

Website Registration
11 hr
11-Hour Endurance Run
7 hr
7-Hour Endurance Run
Visit the organization's website for the most recent information.
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