Trail Running calendar near Somers 2026-2027

Trail 5K and a children's 1/4 mile at Kishwauketoe Nature Center in Williams Bay. The grass trail course passes through hills, woods and prairie, includes a water stop, parking across the street, and awards for top finishers.

The Kishwauketoe 5K will take place in Williams Bay on Saturday 4 July 2026. You can run 3 miles.

A prairie trail run and walk at Lapham Peak State Forest in Delafield supporting prairie management. The event features grass hiking and mountain bike trails, shirts for the first 100 participants, awards for run winners, and on-site regist..

A trail 5K at Byron Forest Preserve with chip timing and awards by age group, plus a 1 mile Fun Run with a participation medal. Parking and indoor restrooms are available onsite.

H-F Beast Obstacle Course Dash in Homewood, IL on July 12, 2026 features two age categories with obstacle runs. The event awards finisher medals and t shirts and includes an optional prep course in June.

A mixed relay in Brookfield with four 3K legs per team and an optional 6K two person relay. Entry is $25 or $20 for USATF members and proceeds support the Brookfield Central Cross Country team.

The Casual Hikers 10K will take place in La Grange on Saturday 1 August 2026. You can run 10 kilometers.

A multi-format event at Pike Lake State Park on August 1, 2026 offering distances from a 0.6 mile kids run to a 13.1 mile half marathon, with shaded trails and post-race watermelon.

Continuous 3.1 miles loop race at Deer Grove East offering 40 or 50 mile options with a 12 hour cutoff. Centralized aid every lap, designated crew access, pacers allowed, and on-course medical support.

Loop-based trail event at Deer Grove East Forest Preserve in Palatine, Illinois. Distances run from 5K to 50K and each lap returns to a central aid station so athletes can decide how far to continue.

A community cross country event in Mount Prospect offering 1, 2 and 3 mile races. Entry is $25 and proceeds benefit the Little Giraffe Foundation.

A 9 mile evening trail run at Kohler-Andrae State Park in Sheboygan featuring beach sand, boardwalk and woodland trails, a single aid station on course, post run snacks and awards for top finishers.

A Scottish Highlander themed obstacle race in Pingree Grove Illinois offering open and competitive 5k and 15k heats plus a family 3k. Night and haunted 5k variants are offered and finishers receive a medal and t shirt.

A community 5K and a kids 1 mile fun run at Token Springs Elementary on 08/15/2026. The mostly bike-path out and back course runs through The Reserve neighborhood and supports the Sun Prairie West Cross Country Team.

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 based endurance event at Busse Woods on August 15, 2026 offering repeated 3.1 mile laps over smooth crushed limestone and packed gravel. Distances range from 5K to 50K with a central aid station and open loop format.

Continuous 3.1 mile loop at Busse Woods near Elk Grove, IL offering 40 and 50 mile options with a fully stocked aid station every lap and a 12 hour cutoff. Runs alongside The Next Loop series but is scored separately.

Run the Rails in Elburn, IL features a 1-mile fun run plus 4- and 7-mile races at Prairie Park, crossing the Union Pacific West rail line, with proceeds supporting the Elburn Parks Commission.

A trail race at Paul Douglas Forest Preserve offering approximate 4, 9.5 and 13 mile courses. Part of the Dick Pond Athletics trail series and benefiting Chicago Area Mountain Bikers, with awards, a raffle, and on-course water stations.

Tough Mudder Chicago runs at Richardson Adventure Farm on August 29, 2026, with 5K, 15K and an Infinity multi lap format. The event features multiple obstacles, Mudder Village with food and music, finisher items, and spectator access.