Great Western Half-Marathon & 10K

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 experienc..

The Chicago Yeti 7-11 Hour Endurance Run is a unique trail race held at Wolf Road Woods in Willow Springs, Illinois. Participants can choose between a 7-hour or 11-hour event, running multiple loops of a 4-mile course through forests and historic preserves. The race features a lively aid station wit..

The Hickory Knolls Trail Run, held at Hickory Knolls Nature Area in St. Charles, Illinois, offers 5K and 10K individual races plus a 10K two-person relay. The course features a scenic, approximately 3-mile loop of grass, dirt, and gravel trails with a mix of flat sections and hills, set in a diverse..

The Naperville Trails Half Marathon & 10K is an annual running event held in Wheaton, Illinois, at the scenic Danada Forest Preserve. Scheduled for September 6, 2025, the race offers both half marathon and 10K distances, including virtual options. The course is USATF certified, featuring a flat and..

The Fancy Nonsense 25K/50K is a whimsical running event designed to bring joy and laughter to participants while challenging their physical and mental limits. Set in the scenic Palos Trail System near Chicago, the race features a 5.5-mile loop course primarily on single track trails. Runners can cho..

The Forge Trail Run Festival, scheduled for November 15, 2025, in Lemont, IL, features a variety of trail running events including 10K, 20K (Half Marathon), 30K, and 60K races. Participants will navigate single and double-track trails through scenic woods and gravel paths around the historic Lemont..