Trail Running calendar near Cornell 2025-2026

The Pinetum Mind Games Endurance Event, held at Lowell Park in Dixon, Illinois, is a unique running challenge featuring a 0.411-mile loop course through the pine tree upper loop area. Participants can choose from 6, 12, or 24-hour solo runs or three-person relays, starting on a Friday evening. The e..

The Chupacabra Trail Races take place in Dixon, Illinois, featuring night trail running on a 5-mile loop course composed of grass, gravel, dirt, and 30% single track. Participants can choose from distances of 5, 10, or 15 miles by completing one to three laps, or join a three-person relay team. The..

The Gristmill Grind 10K is a challenging trail race held annually at Franklin Creek State Park in Franklin Grove, Illinois. Known as one of the most difficult 10Ks in the area, the course features technical trails with approximately 800 feet of elevation gain, multiple hill climbs, and four creek cr..

The Temptation 200 Ultras, held in Sand Ridge State Forest near Forest City, Illinois, is a challenging ultramarathon event celebrating its 7th anniversary in 2025. The race offers multiple distances: a grueling 200K, a 50K, and a "Not At All Tempted" 10K. The course consists of multiple loops throu..

The Naperville Trails Half Marathon & 10K is an annual running event held in Wheaton, Illinois, set for September 6, 2025. Participants can choose between a USATF-certified half marathon or 10K race, both featuring a flat and fast course that winds through the scenic Danada Forest Preserve on crushe..

The Cornell Days 5k and 1 Mile Fun Run/Walk is a family-friendly running event held in Cornell, Illinois, starting at Clinton Keith Mills Memorial Park. The race features an out-and-back course along the county blacktop roads through the scenic countryside, suitable for both first-time runners and e..

The Wild Wild Wilderness is an annual running event held at Kickapoo State Recreation Area in Oakwood, Illinois. Established in 1981, the race features multiple distances including a 5K, a challenging 7.45-mile trail run, and a combined WWW Challenge. The 7.45-mile course is predominantly trail-base..

Hindsight Ultra Trail Runs, held in Dixon, Illinois, offers a grassroots ultra running experience with distances of 25K, 50K, 100K, and 100 miles. The course features a 7.85-mile loop combining roughly 50% singletrack, 30% grassy meadow paths, and 20% gravel, with about 6,200 feet of elevation gain..

The Hennepin Hundred is a premier ultramarathon held in Sterling, Illinois, featuring 100-mile, 50-mile, 50K, and 100-mile team relay races. The point-to-point course follows the scenic, flat, and fast Hennepin Canal State Trail, Illinois’ longest multi-use trail, stretching from Sterling to Colona..

The Farmdale Trail Run, held October 11-12, 2025, takes place at Farmdale Reservoir near East Peoria, Illinois. This premier trail event offers multiple distances: 10K, half marathon, 30-mile, 50-mile, and 100-mile ultras. The course features miles of single-track trails, service roads, and open pra..

The Buckley 5 Miler is a scenic and challenging cross-country trail race held at the Buckley Homestead in Lowell, Indiana. The 5-mile course features a 2-mile loop on the north side of the park followed by a 3-mile loop through the park, finishing at the pioneer farm. Runners encounter a picturesque..

The Fancy Nonsense 25K/50K is a whimsical ultramarathon held in the Palos Trail System near Willow Springs and Lemont, Illinois, about 20 minutes from downtown Chicago. Runners can choose from 25K, 50K, or 5-mile distances on a mostly single-track, 5.5-mile loop course that starts and finishes at Re..

The McNotagain Fall Trail Run takes place at McNaughton Park in Pekin, Illinois, known for its scenic, flat terrain in Central Illinois. The event offers multiple race distances including 3.5, 10, 30, and 50 miles, all run on a 10-mile loop course that is run in reverse direction compared to the spr..

The Allerton Park Trail Run, held at Robert Allerton Park and Retreat Center in Monticello, Illinois, features a challenging 5.7-mile trail run and a 2-mile nature walk. The course follows the Sangamon River and includes natural obstacles like hidden roots, ruts, and sharp turns, offering a rugged t..

The Fast Track Cross Country Open is a 3-mile cross country running event held in Schaumburg, Illinois, on the MacNider course near Hoover Elementary School. Open to all ages and abilities, the event features separate women's and men's races. Participants can enjoy running on grass and have the opti..

The Forge Trail Run Festival, held in Lemont, Illinois, offers a challenging late-fall trail running experience with distances of 10K, 20K (half marathon), 30K, and 60K. The courses start and finish at The Forge and wind through single and double-track trails in the woods, gravel paths, and around t..

The Muddy Shamrock @ The Forge is an annual trail running event held in Lemont, Illinois, featuring a Trail Half Marathon (approximately 13.1 miles) and a Trail Quarter Marathon (about 6.6 miles). The race courses wind through wooded single and double-track mountain bike trails and gravel paths arou..

The Skunk Ape 806/314 Trail Race, held at Lowell Park in Dixon, Illinois, is a unique endurance event featuring two main race distances: 33.75 miles to be completed in 8 hours and 6 minutes, and 13.5 miles in 3 hours and 14 minutes. The course consists of a 2.25-mile single-track loop through wooded..

The F^3 Cap Sauers Trail Marathon & 10 Mile is a trail running event held at Teason’s Woods in Palos Hills, Illinois. The marathon covers 26.2 miles, featuring two circuits of the 10-mile course plus an additional out-and-back segment, while the 10 Mile race follows the Sag Valley Trail. Both course..