Trail Running Calendar Illinois 2026-2027

Experience the diverse terrain of the historic Lemont Quarries with four trail race distances ranging from 10K to 60K. Runners navigate a mix of flat gravel paths and technical single-track trails through the woods.

Run on the fast, scenic Tunnel Hill State Trail in Illinois. This event offers a 100-mile, 100 km, USATF 50-mile championship, 50-mile, and marathon distances on a gentle grade. It's a record-setting course known for its historic tunnel and..

Experience a cross country style trail race through the Timber Pointe Nature Center at Lake Bloomington. Choose between 4K and 8K loops or a three hour endurance challenge while supporting local nature conservation.