Trail Running calendar near Byron 2025-2026

Run the Hawk Trail Run is an exciting endurance event taking place at the historic Blackhawk Ski Club in Middleton, WI, on August 23, 2025. Participants can choose from various challenges, including 3, 6, and 12-hour solo runs or team relays, all set on a scenic 2.25-mile loop course featuring signi..

The Gristmill Grind 10K is an annual trail race held at Franklin Creek State Parks Natural Area, known for its challenging terrain and scenic views. Scheduled for August 30, 2025, this event features a 10K race with significant elevation changes and creek crossings, as well as a 1-mile walk for part..

The Naperville Trails Half Marathon & 10K is a scenic running event taking place in Wheaton, Illinois, on September 6, 2025. Participants can choose between a half marathon and a newly introduced 10K distance, both of which traverse the beautiful crushed limestone trails of the Danada Forest Preserv..

Last Dot Standing is a unique endurance running event taking place in Belleville, WI, from September 19 to 22, 2025. Participants will engage in a "last person standing" format, where they must run 4.2 miles to Dot's Tavern and back, with each leg of the race starting every hour on the hour. In addi..

The Tiger 10 Miler is an annual trail race held in Byron, Illinois, featuring a challenging 10-mile course through the scenic Byron Forest Preserve and Nardi Equine Prairie. Participants receive a custom finisher's medal, a race shirt, and have the chance to win awards in various age categories. The..

The Hennepin Hundred is Illinois' only point-to-point, all-trail ultramarathon, taking place along the scenic Hennepin Canal State Trail. Scheduled for October 4-5, 2025, this event features multiple race distances, including a 100-mile, 50-mile, and 50K, making it suitable for both seasoned ultraru..

The Trail Run at Indian Lake is an exciting running event held at Indian Lake County Park, featuring two course options: a long course of approximately 10.5 km and a short course of about 5.8 km. The event promotes sustainability by adopting a cup-free policy, encouraging participants to bring their..

Zachariah's Acres Fall Run, Walk & Roll is a charitable event taking place in Oconomowoc, WI, designed to support children with special needs. The event features a 5K, a half marathon, and a family-friendly walk and roll, all set against the backdrop of 125 acres of beautiful natural scenery. Partic..

The Mines of Spain 100 is an ultra-marathon event featuring both 100-mile and 100-kilometer races, set in the picturesque bluffs, prairies, and forests of eastern Iowa's Driftless region. The race course, approximately 20 miles long, offers a diverse range of terrains, including steep technical sing..

Soul Crusher is an exhilarating trail running event taking place in Crystal Lake, IL, featuring challenging 5-mile and 10-mile courses designed by Jeff Lenard. Known for its tough terrain, the race promises a unique experience that will test participants' limits. Runners can expect surprises along t..

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 enj..

Among the Trees is a scenic running event scheduled for October 25, 2025, in Dousman, Wisconsin. Participants can choose between two challenging distances: 100k and 50k, both set against the beautiful backdrop of the Southern Kettle Moraine Forest along the historic Ice Age Trail. Runners will start..

The Miner 49er is an endurance running event taking place in the scenic Mines of Spain, Dubuque, IA. Participants can choose between a 50K and a 25K race, both featuring challenging terrain with single track, double track, and prairie trails. Runners will enjoy stunning views of the Julien Dubuque M..

The Forge Trail Run Festival, taking place in Lemont, IL, features a variety of trail running events including 10K, 20K (Half Marathon), 30K, and 60K races. Set against the backdrop of late-fall mid-west trails, participants will navigate single and double-track paths through the scenic woods and hi..

The Fast Eddie 50K and 5K event will take place on November 15, 2025, at Lapham Peak in Delafield, WI. This race celebrates endurance and community while honoring Ed Condon and supporting the Little Warrior Foundation, which aids children battling cancer. Participants can choose between a challengin..

The Quiet Silence 50k is a unique running event taking place in Lake Mills, Wisconsin, on December 5-6, 2025. Participants will have eight hours to complete an out-and-back course on the scenic Glacial Drumlin State Trail, which features a mostly flat, crushed gravel surface. The race begins at Rota..

The Arctic Frog Run in Libertyville, IL, is an exciting endurance running event featuring multiple race distances: 50K, 25K, 15K, 10K, and 5K. Set against a scenic backdrop, the course includes a mix of pavement, wooded trails, and crushed limestone paths along the Des Plaines River. This unique win..

The Guv'nor Frozen 50K is an ultra-marathon event taking place in the scenic Driftless Area of Wisconsin, specifically at Governor Dodge State Park. Scheduled for December 6, 2025, this challenging race offers three distance options: 50K, 25K, and 15K, each featuring varying elevation gains and terr..

The Frozen Assets 5K Run/Walk is a unique event hosted by Clean Lakes Alliance, taking place on a frozen lake in Madison, Wisconsin. Participants can choose to run or walk across the ice of Lake Mendota, enjoying stunning views of downtown Madison and the University of Wisconsin-Madison campus. The..

ARKTOS is an exciting ultra-running event taking place in Dousman, Wisconsin, featuring 6, 12, and 20-hour races for solo runners and relay teams of up to four participants. Set against a serene woodland backdrop, the event encourages runners to embrace the challenge of cold weather and the thrill o..