Trail Running calendar near Eldridge 2025-2026

The Pleasant Creek Trail Run, held in Palo, Iowa, is an annual trail running event featuring three race distances: 15K, 30K, and 45K. The course runs on Pleasant Creek’s outer loop equestrian trail, a 15K loop of primarily dirt and grass trails with rolling hills and occasional small water crossings..

The Tiger 10 Miler is an annual trail race held at Byron Forest Preserve and the Nardi Equine Prairie in Byron, Illinois. The 8th edition of this event features a challenging 10-mile course with twists, turns, and hills through scenic natural areas. Participants receive a custom finisher's medal and..

The 4sta Hike is an annual trail running event held at Loud Thunder Forest Preserve near Andalusia, Illinois, along the Mississippi River. Participants run a challenging 1-mile loop featuring smooth single track, rocks, roots, downed trees, and steep gradients up to 48%. The course offers two option..

Broken Anvil Backyard Ultra, part of the Backyard Ultra Series, is staged in West Point, Iowa at South Park near Pollmiller Lake Campgrounds (61 5th Street). Runners tackle 4.167-mile loops consisting of paved path/road, crushed gravel, and a bit of trail, with about 175 feet of elevation per lap. T..

Hindsight Ultra Trail Runs, held in Dixon, Illinois, offers a grassroots ultra running experience with distances of 25K, 50K, 100K, and 100 miles. The course features a 7.85-mile loop combining roughly 50% singletrack, 30% grassy meadows, and 20% gravel paths, with about 6,200 feet of elevation gain..

The Swiss Valley Trail Races, held in Peosta, Iowa, offer runners three distance options: 5.2 miles, 25K, and 50K. Set within the scenic Swiss Valley Nature Preserve, the course features rugged terrain, creek crossings, and steep inclines, with each 5.2-mile loop climbing approximately 875 feet. The..

October 4-5, 2025, The Hennepin Hundred is Illinois’ only point-to-point, all-trail ultramarathon, running from Sterling along the Rock River to Colona near the Mississippi and following the 104-mile Hennepin Canal State Trail through northwest Illinois’ historic locks, lift bridges, and scenic farm..

The Haunted Heritage Trail Fun Run / Hero Walk in Dyersville, Iowa, offers a festive and spooky running experience with multiple events including a 5K Haunted Heritage Trail Fun Run, a 10K Trail Run, and a 1 Mile Hero Walk. Participants are encouraged to wear Halloween costumes as they navigate a 3...

Autumn Leaf Run is a 5K trail race held in Freeport, Illinois, at Oakdale Nature Preserve. The course loops through diverse terrain, including wide tree-lined trails, moderate hills, prairie areas, bridge crossings, and several single-track sections. The start and finish are in close proximity, and..

Bone Dash 5K & Monster Mile Fun Run takes place at Lake McBride Trail and Timber Dome Lodge in Solon, Iowa. The event offers two races: a Bone Dash 5K and a Monster Mile one-mile run. The courses start together at Timber Dome Lodge; 5K runners head onto the paved Lake McBride Trail while the 1-mile..

Mines of Spain 100, held in Dubuque, Iowa, offers 100-mile and 100-kilometer ultramarathons on October 17-18, 2025. Set in the driftless region’s bluffs, prairies and forests above the Mississippi River valley, it delivers a true Midwest trail experience. The course is described as a ~20‑mile loop f..

Geode Challenge Races are annual trail races at Geode State Park in Danville, Iowa, offering 5K, 12K, and 25K. The 12K runs the beach-perimeter loop in the opposite direction, while the 25K doubles the loop for a longer challenge. Terrain includes dirt trails, rocks, sand, and hills, with about 800..

The Miner 49er is an endurance running event held in the scenic Mines of Spain near Dubuque, Iowa. It features two race distances: a 25K and a 50K, with the 50K being a double loop of the 25K course. Runners experience approximately 2,200 feet of elevation gain on the 25K and 4,400 feet on the 50K...

Woodpecker Six is a six-hour endurance trail run held in Linn County's scenic Pinicon Ridge Park near Central City, Iowa. The course features a challenging 1.2-mile loop with two significant climbs and multiple stairs, totaling about 215 feet of elevation gain per loop through heavily wooded terrain..

The Skunk Ape 806/314 Trail Race, held at Lowell Park in Dixon, Illinois, offers challenging trail running events on March 21, 2026. Participants can choose between a 33.75-mile race to be completed in 8 hours and 6 minutes, a 13.5-mile race with a 3 hour and 14 minute limit, or a relay option. The..

Galena Sky Trail Race is held at Chestnut Mountain Resort in Galena, Illinois. It features two timed loop formats: an 8-hour loop and a 4-hour loop on the resort’s trails that climb the same hills skied in winter, offering views of the Mississippi River and the Iowa–Wisconsin shores. The long loop i..