Trail Running Calendar Illinois 2025-2026

Potawatomi Trail Runs returns April 9 to 12, 2026 at McNaughton Park in Pekin, Illinois with distances from 10 mile to a 200 mile epic. Tackle rugged 10 mile loops of single track, creek crossings and rolling hills, with primitive camping a..

Run the scenic trails of Camp Ondessonk in Ozark Illinois with 5K and 10K options perfect for all abilities. Expect forest singletrack, friendly vibes and event shirts for early registrants.

Allerton Races in Monticello offers scenic trail and road distances including a half marathon, 10K and a glowing nighttime 5K. Run live or virtually while supporting Robert Allerton Park and Make A Wish Illinois, with special donor perks on..

Join the Earth Day trail run at Veterans Acres in Crystal Lake offering 50K, 15 mile and 5 mile options on a rolling 5 mile single track loop around the pond. Enjoy homemade aid station treats and a friendly, eco minded race atmosphere.

Take on rugged single track at Loud Thunder Forest Preserve with 50 mile, 50K or half marathon looped courses that pack big elevation and scenic views. Two stocked aid stations and nearby camping make for a fun, community oriented trail wee..

Run 10K, 25K, 50K or 50 Miler loops at Deer Grove Forest Preserve West in Palatine. Mostly wide non technical trails, a single aid station, pacers allowed for 50 Miler after four loops, and on course shenanigans promise a fun day.

Run scenic trails at Teason's Woods in Palos Hills on May 9, 2026 with marathon or 10 Mile options over rolling terrain and shared two way trails. Enjoy event apparel, a wooden sunflower medal for finishers, plus post race chili and beer.

Enjoy a scenic 8K through Lincoln Memorial Garden in Springfield on May 30, 2026, weaving lakefront paths and prairie trails. Kids fun runs, post race food, and a wooden finisher medallion make this intimate event limited to 300 runners.

Run scenic singletrack and gravel through Giant City State Park at the Red Cedar Trail Races in Makanda, IL on May 30, 2026 with 5K, half marathon and a tough 40K option. Finishers get a medal, swag and a post race drink choice.

Join the 28th annual Lake Mingo Trail Run on June 6, 2026 in Danville, IL for a scenic 7.1 mile loop of trails, hills and marshes where mud and wildlife add to the fun. Celebrate with food and beer at the post race party.

Join DBC Gifts of Love Community 5K in Flossmoor on June 20, 2026, for a scenic 5K at Vollmer Road Grove Forest Preserve or run the Virtual 5K. Help send backpacks, school supplies and gift cards to local homeless students.

Run the 1st Annual Sundown Showdown 5K cross country in Carterville IL on July 17, 2026. Team or individual runners will tackle a grassy course and compete for awards for top finishers and male, female, and mixed teams.

Take on Madder Than A Wet Hen, a rugged 5K trail race at Willenborg Woods in Charleston on July 25, 2026, with river crossings, steep climbs and roughly 1,100 feet of gain. Field limited to 125, with post race pancakes and ice cream.

Tackle Shawnee Hills Trail Races at Camp Ondessonk in Ozark IL on Aug 22 and 23 2026. Choose from 100 mile to half marathon on hilly single track with creek crossings, night options and full aid.

Choose your challenge at Temptation 200 Ultras on September 5 2026 at Sand Ridge State Forest near Forest City, IL, with options from the Not Tempted 10K to a loop based 50K or the epic 200K. The loop format lets runners stop at 50K 100K or..

Tackle rugged trails at the GristMill Grind in Franklin Creek State Natural Area, featuring 5K and 10K routes with creek crossings, bluffs and forest canopy. All proceeds support Franklin Creek conservation and park improvements.

Run the rugged Wild Wild Wilderness at Kickapoo State Recreation Area with a scenic 7.45 mile trail or 5K option. Expect steep climbs, creek crossings, awards at the finish and the chance to complete the Grand Slam.

Hit the fast rolling Sand Creek trails near Decatur with 4.4 or 7.6 mile options, in person or virtual. Enjoy a technical long sleeve shirt, finisher medal and snacks while supporting the Special Operations Warrior Foundation.

Join the Miles for Marshall 5K trail run and walk at Patriot's Park in Greenville to support childhood cancer efforts. Enjoy scenic trails, community spirit, and a meaningful cause this September 26, 2026.

Run the scenic 104 mile Hennepin Canal State Trail from Sterling to Colona on a flat and fast all trail course. Choose 100 mile relay, 50 mile, or Mule 50K night run and earn memorable finish swag.