Trail Running calendar near Cornell 2025-2026

Located in Franklin Grove, Illinois, the Grist Mill Grind 10K is a technical trail race held in Franklin Creek State Park’s natural area. The fifth annual event offers a challenging 10K course with about 800 feet of elevation gain, winding over forest trails with several hills and four crossings of..

Temptation 200 Ultras is an endurance ultramarathon held in Forest City, Illinois, at Sand Ridge State Forest. Runners choose among 200K, 50K, or the Not At All Tempted 10K options, with the long race offering a multi-loop course through wooded trails and camping at the start/finish. The event empha..

Naperville Trails Half Marathon & 10K is held in Wheaton, Illinois, with the start/finish at the DuPage County Forest Preserve District Headquarters and a scenic course through the Danada Forest Preserve on crushed limestone trails. Runners choose either the Half Marathon or 10K; both distances are..

The Cornell Days 5k and 1 Mile Fun Run/Walk is a family-friendly event held at Clinton Keith Mills Memorial Park in Cornell, Illinois. The event takes place on Saturday, September 6, 2025. It offers two distances: a 5K and a 1 mile Fun Run/Walk, starting and finishing at the park along a county blac..

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 and a challenging 7.45-mile trail run that covers steep hills, creek crossings, and scenic woodland terrain. The c..

Limestone Rocks! 8-Hour or 4-Hour Race takes place at Limestone Park in Kankakee, Illinois. Runners choose an endurance 8-Hour or a 4-Hour option, competing on a 1.65-mile loop course. The surface is mostly crushed limestone with sections of asphalt; the course is roughly half flat and half hilly, f..

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 meadows, and 20% gravel paths, with about 6,200 feet of elevation gain..

Run The Woods is a charity running event held in Hudson, Illinois at Timber Pointe Outdoor Center (20 Timber Pointe Lane). The series includes 5K, 5K for Youth, 8K, 8K for Youth, and a 1 Mile Trail Walk – Untimed. While the site doesn’t describe a specific course layout, the venue suggests a family-..

Miles of Madness is a grassroots ultra-running event held at Pekin Park District Sports Complex, Pekin, Illinois. It offers 2, 6, 12, and 24-hour options with 1.2-mile laps, for solo runners or relay teams (minimum 3 members; only one team member on course at a time). The atmosphere is laid-back and..

Anderson Humane's Walk4Animals & 5K Run takes place in Batavia, Illinois, centered at the Peg Bond Center at 100 N Island Ave along the Batavia Riverwalk. The event offers a 5K Run (timed), a 1.5-mile Walk, and a T-Shirt Only option. The Walk4Animals route is a 1.65-mile loop around the Batavia Rive..

October 4-5, 2025, The Hennepin Hundred is Illinois’ only point-to-point, all-trail ultramarathon, running from Sterling along the Rock River to Colona near the Mississippi and following the 104-mile Hennepin Canal State Trail through northwest Illinois’ historic locks, lift bridges, and scenic farm..

Fire Zone 5k is a first-time event hosted by the Lockport Fire Foundation in Lockport, Illinois. The 5k takes place on a Forest Preserve trail, with a single full marked loop starting at the Hassert Park parking lot across from Lockport Township Fire Station Six and ending back there. Runners and wa..

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..

Palos Park Spooky Shuffle 2025 is a 5K and 10K trail run/walk held at Swallow Cliff South Forest Preserve in Palos Park, IL, organized by the Palos Park Department of Recreation & Parks in partnership with the Forest Preserves of Cook County. Runners traverse the Sag Valley Trail System on wide, unp..

Oktoberfest Rotary Run is an annual fundraiser in Bloomington, Illinois, held on the third Sunday each October. The event centers at GE Park / Union Park Clubhouse (1750 GE Road) and offers a chip-timed 5K on the Constitution Trail, looping through Tipton Trails and returning on blacktop paths. A 1‑..

Witches in the Woods 5K/2K is a Halloween-themed running event at the Lake County Fairgrounds in Crown Point, Indiana. Participants can choose a 5K Timed Halloween Run or a Non-Timed Halloween 2K Walk. The night-time course weaves through the fairgrounds’ trees and surrounding roads, with flashlight..

Fancy Nonsense 25k/50k is a whimsical ultramarathon organized by CUSS Running, held near Chicago at Red Gate Woods in the Palos Trail System (Willow Springs/Lemont, IL). The course is a 5.5-mile mostly runnable single-track loop, repeated to reach 25k or 50k. Expect a playful, mischievous atmosphere..

McNotagain Fall Trail Runs takes place at McNaughton Park in Pekin, Illinois, offering distance options: 3.5 miles, 10 miles, 30 miles, and 50 miles. In a flat Central Illinois setting, the course features the same full 10-mile loop run in reverse, providing a fresh perspective while preserving fami..

Running with Ghouls is a Halloween-themed trail run/walk in Canton, Illinois, organized by YWCA Canton. Participants can choose a 5k or 1 mile distance, with a family-friendly atmosphere and Halloween costumes encouraged but not required. The course runs on Canton Park District trails, starting and..