Trail Running calendar near Peosta 2026-2027

Experience the unique terrain of the driftless region at Yellow River State Forest. Choose from 5K 10K or half marathon distances and enjoy post race food games and sponsor giveaways.

A non-timed 2K and 5K trail run/walk at Case Creek Valley that welcomes leashed dogs and supports Rock Island County Animal Care & Control Shelter, with race bibs, optional T-shirts, finisher dog tags, and hydration stations.

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.

Trail race at George Wyth State Park in Waterloo IA offering 13K and 25K on runnable dirt single track. Limited on course aid and finish area food near Canfield Shelter.

A weekend multi-sport event in Yellow River State Forest combining a mostly flat five mile trail run with catch and release fly fishing and local craft beer. Proceeds support coldwater and habitat projects in northeastern Iowa.

Trail race at Swiss Valley Nature Preserve near Peosta, Iowa, run on a 5.2 mile loop with significant elevation gain; distances include 5.2 miles, 25K, and 50K. Camping, free 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, 50K and a 100 mile team relay with stocked aid stations and a 30 hour cutoff.

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.

Trail Run at Indian Lake takes place on Oct 3, 2026 at Indian Lake County Park. The event is cup free, includes a free kids run with no registration, and features a post race party with live music and a raffle.

A coffee themed 2K and 5K fun run and walk at Case Creek Trails on October 4, 2026. The untimed event features aid stations, post race hot drinks and treats, optional swag, and fundraising for QC PAWS.

Trail ultra at Bethel Horizons in the Driftless Area offering 50K, 20M and 10M looped courses with mixed singletrack, grassy ridgelines, rocky climbs, fully stocked aid stations and chip timing.

A chip timed 5K in Keystone, Iowa on 10/10/2026 where participants wear flag belts and encounter costumed zombies who try to pull flags. Proceeds support Keystone First Responders and Benton Girl's Wrestling.

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 roughly 20-mile loop trail ultrarun in Dubuque, IA used for both a five-loop 100-mile and three-loop 100k, featuring mixed terrain, significant elevation per loop, and river and bluff views.

An October trail run at the Black Hawk Unit of the Lower Wisconsin State Riverway, organized by volunteers. Proceeds support local conservation groups and the event posts results and photos after the run.

Experience the seasonal beauty of Clayton County at the Pony Hollow Trail 15K and 5K. Run through the historic Motor Mill park area and enjoy the autumn foliage on this established trail course.

Trail endurance runs in the Mines of Spain near Dubuque, IA offering 25K and 50K out-and-back courses with approximately 2200 and 4400 feet of elevation gain. Single-track, stone steps, stream crossings, and three aid stations.

A Backyard Ultra in Colona, Illinois on Nov 7, 2026, consisting of repeated 4.17 miles loops on a mostly flat course with one hill out of a ravine. Parking and camping space are available.

A backyard ultra in Delmar, IA where runners complete a 4.16 mile loop each hour until only one person remains. Participants receive a 10 by 10 foot camp space, may bring up to three crew members, and get a custom hockey sweater.