Trail Running calendar near Brighton 2025-2026

Conquer winter trails at the Frozen Gnome in Crystal Lake on January 10, 2026, a technical single track 10K loop repeated for the 50K or tackled in relays. Expect triple black diamond terrain, a Gnome Depot aid station, and a finisher medal..

Event overview The 50K MASHUP SLAM is a series of trail races in the Midwest based on the 50K distance. The series includes multiple events across the year, begins with the Frozen Gnome 50K in January and concludes in November with the Mine..

Whitewalker Ultra 100k is a self-supported ultramarathon held in Palmyra, Wisconsin, starting at Emma Carlin Trailhead. The course comprises two 50k loops, first looping west on the Ice Age Trail to Whitewater and back, followed by a second..

Tackle winter trails in the Fox Valley with a three part Challenge Series featuring a 5K in Batavia, 8K in Aurora and 10K in St Charles across Jan to Mar. Register single or as a bundle and earn upgraded swag for multiple races.

The Frozen Assets 5K Run/Walk is a unique winter event held in Madison, Wisconsin, where participants run or walk entirely on the frozen surface of Lake Mendota. The 5K course offers scenic views of downtown Madison and the University of Wi..

ARKTOS : February 28 to March 1, 2026 ARKTOS is a winter trail ultra held in Dousman, Wisconsin (Southern Kettle Moraine Forest). The event offers timed-loop formats in three durations. The race is open to solo runners and relay teams of up..

Muddy Shamrock @ The Forge is a trail running event held at The Forge: Lemont Quarries in Lemont, Illinois. The race offers two distances: Trail Half Marathon (about 13.1 miles, run as two laps) and Trail Quarter Marathon (about 6.6 miles,..

Trailbreaker : March 29, 2026, Waukesha, WI The Trailbreaker is scheduled for March 29, 2026, in Waukesha, WI, with the main venue at the Schuetze Recreation Center / Frame Park Baseball Stadium. The event has been hosted by the Park Founda..

Event overview NK50k takes place on April 11, 2026 in Greenbush, WI, presented as the 13th Annual-ish edition. The event offers multiple distances: 50K - point-to-point on the Northern Kettle Moraine Ice Age Trail 25K - separate start at C..

Celebrate Earth Day on April 18 in Crystal Lake with looped trail races of 50K, 15 mile, and 5 mile on rolling single track. Friendly aid station, scenic pond start, and relaxed festival vibe for trail runners of all levels.

Run under the stars at Moonlight Meltdown on April 25 in Belgium WI, with chip timed 5k road and a Sunset Safari 10k including a trail through Harrington Beach State Park. Shirts, post race food and a finish party at KYOTES.

Childish Nonsense brings looped ultrarunning to Deer Grove Forest Preserve in Palatine IL with races from 10K to 50 mile. Expect mellow trails, multiple laps with a main aid station about every 5.5 miles, and a welcoming, inclusive communit..

The Prickly Pine Jackpot 24 Hour Solo/Relay is an endurance running event held in the scenic Kettle Moraine State Forest near Dousman, Wisconsin. Participants can choose from multiple race options including 6-hour, 12-hour, and 24-hour solo..

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.

Push your limits at the Chicago Yeti 7 to 11 hour Endurance Run in Willow Springs, a looped trail through restored forest and rolling hills with pond views. Live lap timing and a playful aid station keep you on pace and fueled.

Run 50 mile, 50K, or half marathon on scenic flat rail trails in Belleville on May 23, 2026. Enjoy trestle bridges, a quarter mile tunnel, generous cutoffs and post race pizza, beer and swag for finishers.

Backyard Nonsense on June 6, 2026 invites runners to scenic trails at Richard Bong State Recreation Area with rolling hills and lakeside sections. Enjoy a welcoming community and choose timed options from 3 hour to a full 24 hour ultra.

Explore the rugged trails of Kettle Moraine in LaGrange WI, with ultra options from the 38 Miler up to the 100 Miler, plus relays and a 50K. The mostly trail route includes 65 miles on the Ice Age Trail and the 100 Miler is a Western States..

Run the scenic Ice Age Trail near Rice Lake in Whitewater, Wisconsin on June 20, 2026. Choose a 10K, 21K half marathon or 50K and tackle varied, rewarding single track through classic summer forest scenery.

The Timely Nonsense - Chicago, IL will take place in Chicago on Saturday 12 September 2026. You can run between 3 and 12 kilometers.