Trail Running calendar near Rockford 2026-2027

Trail races at New Glarus Woods State Park on August 15, 2026 include 16K, 8K, 5K and a free 1K kids run. Proceeds benefit Friends of New Glarus Woods State Park and awards include age-group prizes plus a 16K consistency award.

A community cross country style event at Lussier Stadium in Madison featuring a 5 km run and a 1 mile walk; established as a memorial and serving as a fundraiser for LaFollette High School middle school feeder schools.

Loop format trail event at Busse Woods in Ned Brown Forest Preserve on August 15, 2026. Runners complete 3.1 mile loops on crushed limestone and packed gravel with a centralized aid station and distances from 5K to 50K.

A continuous 40 or 50 mile loop race at Busse Woods on a 3.1 mile (5K) trail loop with fully stocked aid each lap and a 12 hour time limit. Personal supplies, crew zones, pacers, and on site medical staff support runners.

Multi-hour looped trail challenges at Blackhawk Ski Club in Middleton, WI, with individual and team relay options, plus a 1.7 mile fun run that highlights the course features and terrain.

Run the Rails in Elburn, Illinois on August 22, 2026 offers a 1 mile fun run plus 4 mile and 7 mile courses that begin and end at Prairie Park. Courses cross the Union Pacific West rail line and benefit the Elburn Parks Commission.

Trail races of approximately 4, 9.5 and 13 miles at Paul Douglas Forest Preserve on August 23, 2026. Part of the Dick Pond Athletics Darn Tough Trail Race Series with awards, raffle prizes, and proceeds benefiting Chicago Area Mountain Bike..

Tough Mudder Chicago at Richardson Adventure Farm on August 29 2026 offers 5K and 15K obstacle runs plus an 8 hour Infinity format, a Mudder Village with food and music, and finisher medals shirts and drinks.

A technical trail event at Franklin Creek State Natural Area in Franklin Grove, IL, offering 5K and 10K courses with multiple creek crossings and about 100 ft elevation gain per mile. Runners, walkers, and ruckers take part and proceeds sup..

Timed ultrarunning at Lapham Peak State Park with 24, 12 and 6 hour options plus a distance division for marathon and longer targets. One mile loop, chip timing, an aid station, and a cupless refill policy.

A half marathon and 10k at Danada Forest Preserve in Wheaton on crushed limestone trails, finishing around the horse race track. USATF certified courses with chip timing, pacers, finisher medals, shuttle parking and packet mailing options.

A new trail race in Verona, Wisconsin offering 5K and 10K courses through prairies, woodlands and oak savannas. Net proceeds support Prairie Moraine Friends for park restoration; parking is limited and ride sharing is encouraged.

A three day trail event at Rock Cut State Park featuring a night 10 km plus 25 km and 50 km races, with single race entries and Triple Crown series options that award commemorative spike prizes to finishers.

An event in Belleville, WI that alternates hourly 4.2-mile legs between Belleville Community Park and Dot's Tavern until one runner remains; it also offers 24-hour, 48-hour, and 8-hour races with prize pots and mileage buckles.

Midwest OCR in Marseilles, Illinois features 5K and 10K obstacle courses, ruck options, a kid's loop, and a multi-lap Bearded Challenge, with finisher shirts, medals, and professional photos included; elite divisions award podiums and cash..

Experience ten miles of hills and winding trails through the Byron Forest Preserve and Nardi Equine Prairie. This cup free race features cash prizes and a post race celebration with pizza at Hairy Cow Brewing Company.

A 136 mile point to point on the Ice Age State Trail through the Southern Kettle Moraine, with varied trail surfaces, nine staffed aid stations and full on-course support over an approximate 55 hour time limit.

A women only Last Woman Standing trail event on a roughly one to 1.25 mile loop with 250 to 300 ft of climb per lap near Arena Wisconsin. Laps repeat every 20 minutes until one runner remains.

A grassroots looped ultra in Dixon, IL, offering distances from about 8 miles to 100 miles on mixed singletrack, meadow, and gravel. Two aid stations, crew access, and pacers are allowed; medals and a buckle are awarded for finishers.

A multi-distance running and walking event at Moraine Hills State Park offering 5K, 10K and half marathon options in person and virtually during September 2026, with courses on crushed limestone trails and support stations along the routes.