F^3 Cap Sauers Trail Marathon

The F^3 Cap Sauers Trail Marathon & 10 Mile is set to take place in Palos Hills, IL, on May 10, 2025. This event features a challenging marathon and a 10-mile race, both traversing the scenic Cap Sauers Holding Nature Preserve, the largest undeveloped area in Cook County. Participants will experience over 1000 feet of elevation gain on well-maintained trails, including the Sag Valley Trail system.

All runners receive a technical trucker hat, and marathon finishers earn a unique wooden medal. The race promises ample aid stations and a supportive atmosphere, making it a memorable experience for all participants. Visit the organization's website for the most recent information.