Trail Running calendar near Sheffield 2026-2027

A day of looped trail events at Comlara near Hudson, IL, with timed options from one hour to twelve hours, a relay race, and an open course option. Runners complete roughly four mile loops and must return each hour to continue.

Tough Mudder Chicago at Richardson Adventure Farm on August 29, 2026 combines mud and named obstacles with 5K, 15K, and Infinity lap options plus a Mudder Village festival and finisher rewards.

Trail races at Scott County Park near Long Grove IA offering 50K, 10 Miler and 5 Miler courses on mixed dirt and grass trails. The 50K is three laps of a roughly 10 mile loop with aid stations and specific crew and pacer rules.

Experience an all terrain trail race through the scenic Big Horse Vineyards featuring natural obstacles and mud. Choose between a competitive 5K or a social beer mile followed by wine tasting in Central Illinois.

Test your limits at Decker Farm with a grueling combination of military boot camp and farm chores. Choose between 4, 12, or 36 hour endurance challenges featuring heavy carries and undisclosed physical tasks.

A multi distance trail ultra at Sand Ridge State Forest on Labor Day weekend 2026 offering 200K, 50K and a 10K. Camping is included and finishers receive coins or buckles according to distance.

A technical trail event at Franklin Creek State Natural Area featuring 5K and 10K routes with multiple hills, limestone bluffs, creek crossings, and a rucking option. Proceeds support the Franklin Creek Conservation Association.

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.

A multi-division obstacle course event at The Cliffs park featuring 5K and 10K courses, a ruck division, a multi-lap Bearded Challenge, and a kid's course. Finishers receive a shirt, medal and professional action photos.

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 dog friendly 2K and 5K fun run and walk at Case Creek Valley supporting Rock Island County Animal Shelter, with participant swag, dog treats, and specific leash and vaccination rules.

A coffee themed 2K and 5K fun run at Case Creek Trails on September 20, 2026. The untimed route goes through pastures and woodlands, includes hot drinks and refreshments, and supports the Rock Island County Animal Care and Control Shelter.

A grassroots loop ultra at Dixon Park District offering 25K, 50K, 100K and 100 mile options on a 7.85 mile mixed surface loop with two aid locations, crew and pacer policies, and finisher awards.

A point-to-point all-trail ultramarathon along the Hennepin Canal State Trail between Sterling and Colona, Illinois. Multiple distances include 100 mile, 50 mile, 50K and a 100 mile team relay; aid stations are every three to seven miles.

Run The Woods is a trail event at Timber Pointe Outdoor Center in Hudson, IL featuring 5K and 8K races with youth divisions and a one mile untimed trail walk. Proceeds benefit Easterseals Central Illinois and Timber Pointe Outdoor Center.

Autumn Leaf Run is a 5K trail event at Oakdale Nature Preserve in Freeport on 10/03/2026. The looped course crosses prairies, creek and wooded trails and raises funds for park improvements through the Freeport Parks Foundation.

A trail running event at Farmdale Reservoir on October 10-11, 2026 offering 10K through 100-mile distances on single-track and prairie terrain, with camping, aid stations, pacers, and finisher awards including shirts and medals.

Experience a natural trail run at Saw Wee Kee Park featuring a soft path with twists and turns. Complete this event to earn a piece of the 2026 series medal and enjoy seasonal swag in a beautiful outdoor setting.

McNotagain Fall Trail Runs at Mcnaughton Park in Pekin, Illinois offers 50, 30, 10 and roughly 3.5 mile trail races. The 10 mile loop is run in reverse with two creek crossings and about 1300 feet of gain per loop.

Celebrate Thanksgiving with a 2 mile run through the wooded trails of Sheffield Illinois. Wear your best holiday costume for a chance to win prizes at this untimed community event.