Trail Running calendar near Hoffman Estates 2026-2027

A winter timed ultra in Dousman, Wisconsin offering 6, 12, and 24 hour options for solo runners or relay teams of up to four, set in winter woods and on a frozen lake with warming shelters, hot drinks, a meal, and finisher items included.

Early-season trail races at The Forge in Lemont, Illinois, on wooded single and double track trails with mud, roots and gravel. Distances offered are 13.1 miles and 6.5 miles with technical singletrack sections.

A trail race at Sunset Hill Farm County Park offering three distances, a 16 hour finish allowance, a single start/finish aid station, and distinctive finish gifts including belt buckles and a hand-made wooden medal.

A 10K trail race at Hickory Knolls Discovery Center in St. Charles on March 14, 2027. The 10K is part of a winter series with 5K and 8K races and has a $45 registration fee.

A looped trail event at Lowell Park with multiple timed distances on a 2.25 mile alternating-direction loop, manual lap counting, finishers' items and awards, an aid station with varied food, and a nonrefundable registration policy.

Trailbreaker returns to Waukesha on April 4, 2027 with races from a 1K kids run to a full marathon, plus ruck options and a walk. Proceeds support the Park Foundation of Waukesha and local parks and recreation.

A trail event at Deer Grove Forest Preserve near Palatine, IL on April 24, 2027, offering 5.5 mile, 25K, 50K and 50 mile distances with a single aid station at the start and a playful, community-focused atmosphere.

A flat out and back half marathon and 10K on the limestone Great Western Trail, organized by Fox River Trail Runners, with part of registration fees donated to three local mental health charities.

Trail marathon and 10 mile on the Sag Valley Trail at Cap Sauers Nature Preserve in Palos Hills, IL, with wide horsetrail, notable elevation gain, and staffed aid stations along the routes.

The Frontline OCR will take place in Byron on Saturday 22 May 2027. You can run between 5 and 10 kilometers.