Chicago 11 Hour Endurance Run

The Chicago 7-11 Hour Endurance Run, organized by Yeti Trail Runners, is a unique trail running event set in Willow Springs, IL, on May 17, 2025. Participants can choose between a 7-hour or 11-hour endurance challenge, navigating a scenic 4-mile loop through the picturesque Wolf Road Woods and Palos Preserves. The event emphasizes camaraderie and fun, featuring a quirky aid station with gourmet snacks and a celebratory atmosphere.

With professional timing and a focus on inclusivity, this race invites runners of all levels to enjoy the thrill of endurance running while embracing the spirit of the Windy City. Visit the organization's website for the most recent information.