Trail Running calendar near DeWitt 2026-2027

Trail races at Swiss Valley Nature Preserve near Peosta, Iowa, offering 5.2 mile, 25k and 50k options on a multi loop course with creek crossings and rugged, hilly terrain. Free camping, showers and shuttle service are provided.

A point to point all trail ultramarathon along the Hennepin Canal State Trail in northwest Illinois, offering 100 mile, 50 mile, team relay and a nighttime 50k, with aid stations every 3 to 7 miles and Western States qualification.

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 Backbone State Park in Dundee, Iowa, on Saturday, October 10, 2026, organized by Backbone Lake Friends, offering a 4.3 mile Original route and a 10K Lake Loop with stated difficulty levels.

A charity running event in Solon, Iowa featuring a timed 5K and a Monster Mile, with all proceeds to the Arthritis Foundation to support pediatric rheumatic disease awareness.

A Midwest trail ultramarathon in Dubuque that uses a roughly 20 mile loop through the Mines of Spain Recreation Area. Options include a 100 mile five loop race and a 100K three loop race with substantial elevation gain.

Trail races at Geode State Park with 5k, 12k and 25k options, two aid stations and water at the beach shelter. The event raises funds for the park's concession building and includes a race t-shirt; youth receive a discount.

Miner 49er in Dubuque, IA features 25K and 50K runs on single-track and prairie trails with significant elevation gain, three aid stations, and views of the Julien Dubuque Monument, Horseshoe Bluff, and the Mississippi River.

A six hour trail endurance run at Pinicon Ridge Park near Central City, Iowa, on a 1.2 mile loop with two large climbs and stairs. Course direction changes every two hours and the event includes aid station food, a race shirt, and awards.

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.

A four race winter trail series in Dixon, Illinois covering 31 miles from December to March. Races include 5K, 10K, 15K and 20K with series awards and participation merchandise.

A looped trail event at Lowell Park offering 13.5, 22.5, and 33.75 mile timed races plus a relay, with manual lap tracking, aid station food, entry fees, and awards for top finishers.