Chicago 11 Hour Endurance Run

Chicago Yeti 7/11 Hour Endurance Run

The Chicago Yeti 7 11 Hour Endurance Run is a timed trail event held at Wolf Road Woods in Willow Springs, Illinois. The course is a 4 mile loop through the Palos Preserves with single track sections under restored forest canopy, double track through historic preserves, rolling hills, and runnable stretches. A GPX file for the course is available.

Distances

• 7 Hour Endurance Run
• 11 Hour Endurance Run

All entries are professionally timed by Zen Arcade Timing with live lap counting and real time results. The event features the Yeti 7 11 aid station stocked with a variety of snacks and beverages including hot dogs, Pixie Sticks, honey buns, crackers and chips, plus water and electrolyte drinks. Participants must bring a reusable cup because the event operates as a cupless race.

The event includes awards in all categories for both time options. Inclusion policies note that entrants will be accepted under their declared gender and that organizers will work to record preferred pronouns. Criteria for athletes with disabilities include allowance of tethers for visually impaired runners, leg prosthetics, and crutches or poles with race director approval; the course may not be suitable for wheelchair use. The organizer does not offer refunds, deferrals, or transfers once registration fees have been committed. Visit the organization's website for the most recent information.