Chicago 11 Hour Endurance Run

The F^3 @ the Forge: Fat Tire Race & 10K Trail Run is set for January 12, 2025, at The Forge: Lemont Quarries in Lemont, Illinois. This exciting winter event features a variety of races, including a long course (approximately 20K) and a short course (about 10K) for fat tire biking, as well as a 10K ..

The Muddy Shamrock @ The Forge is an exciting trail running event scheduled for March 15, 2025, in Lemont, Illinois. This annual race features two main events: a Trail Half Marathon and a Trail Quarter Marathon, both set against the scenic backdrop of the historic Lemont Quarries. Participants will ..

The Forrest Gump Hump 5K Trail Run is scheduled to take place at Oak Ridge Prairie and Oak Savannah Trail in Griffith, Indiana. This event, organized by the Crazy Legs Race Series, promotes non-pavement races in the Northwest Indiana region. Participants can expect a fun and challenging course, with..

Childish Nonsense is a whimsical running event taking place at Deer Grove Forest Preserve in Palatine, IL. Participants can choose from various distances, including a 50 Miler, 50K, 25K, and 10K, all set on a wide, non-technical trail. The event aims to foster a sense of community and joy in ultraru..

The Great Western Half-Marathon & 10K, organized by the Fox River Trail Runners, is a well-established running event held on the scenic Great Western Trail. Celebrating over 25 years, this competitive race features a flat, out-and-back course, making it accessible for runners of all levels. Schedule..

The F^3 Cap Sauers Trail Marathon & 10 Mile is a running event scheduled for May 10, 2025, in Palos Hills, Illinois. Participants can choose between a full marathon (26.2 miles) and a 10-mile race, both set within the scenic Cap Sauers Holding Nature Preserve, the largest undeveloped area in Cook Co..