Trail Running calendar near Dacono 2026-2027

Experience a hilly 5k trail race through the scenic Lory State Park. Enjoy a low key atmosphere followed by pizza, beverages, and a vintage race shirt in this midweek summer series event.

A four-race trail series on Tuesday evenings in August in Lory State Park. Distances include 5K, 10K, and 12K routes with varying elevation. Pizza and drinks follow each race, with series awards at the end.

Experience a high altitude trail run through the Rocky Mountains on 100 percent unpaved roads and trails. This dog friendly event in Fraser supports children facing cancer through the Shining Stars Foundation.

Experience high altitude trail running through the scenic singletrack and historic landmarks of Staunton State Park. Choose between a full or half marathon featuring sweeping mountain views and a festive post-race meal.

The Antelope Dash is a trail running event in Curt Gowdy State Park, Wyoming. Runners can choose between 4-mile and 8-mile courses through scenic landscapes with rolling hills and granite formations. The races start at over 7,300 feet, offe..

Experience a fast and flat 12k trail race through the scenic Valley Trails of Lory State Park. Enjoy a low key atmosphere followed by pizza, beverages, and a vintage race shirt in Bellvue.

Explore the rolling trails of Castle Rock's Miller Park at the Rock Hawk Trail Races. Choose from four distances, from a 5K to a 50K, on a course that supports local trails. The event features aid stations and a festive start/finish area fo..

Join a family friendly trail event in Aurora featuring 5K distances and a kids run. Enjoy dog demonstrations, a pancake breakfast, and a kids fun zone while supporting therapy and patrol K9 units.

Event Overview The Front Range Ultra Dayze (FRUD) is a multi-day running festival taking place in Loveland, Colorado. It features a variety of ultra-distance and timed events, with a total participant cap of 200 runners. Distances and Forma..

Experience a mountain trail race at Arapahoe Basin featuring a 9.4 mile course with over 2200 feet of vertical gain. Runners can compete in Pro, Expert, or Sport divisions for cash and gear prizes.

Join the community for a 5K run or walk on a brand new dirt course at the North Arvada Middle School Athletic Complex. Support local high school racers before taking on this off road route yourself.

Test your endurance at Staunton State Park with weighted rucking options ranging from 6.5 to 21.5 miles. Choose your load and tackle the Colorado trails to support the Special Forces Foundation.

The American Heroes Run takes place on September 11 and 12, 2026 in Longmont, Colorado. Participants can run various distances on a flat, fast loop course. The event honors American heroes with special awards and a patriotic theme.

Experience trail and road running at 8,236 feet in Nederland, Colorado. Choose between a trail half marathon, a 10K, or a family friendly 5K while supporting local youth programs.

Experience high altitude trail running at the Snow Mountain Ranch Trail Running Festival in Granby. Choose from distances ranging from 5 km to 50 km on scenic dirt and grass paths reaching nearly 10000 feet in elevation.

Experience the scenic trails of Lory State Park in this 13.5 mile mountain race featuring technical singletrack and stunning Rocky Mountain views. Enjoy a well supported course followed by a celebratory pancake breakfast at the finish.

Tackle high-altitude trails in the Colorado Rockies. Choose between a demanding 50K or a 22K point-to-point course, both featuring single-track paths and significant climbs. This remote race requires experience and preparation.

Experience the scenic trails of North Table Mountain in Golden with 5 and 10 mile races. Run through challenging switchbacks and loops to support families transitioning from homelessness.

Experience the wild spaces of Northern Colorado with a weekend of trail races ranging from a half marathon to a 50 mile ultra through scenic forests and scout camp trails. Stay on site with available camping and community meals.

Experience a rugged trail adventure through the Colorado wilderness in Estes Park. Choose between a 50k run or bike and a heavy half marathon while supporting the local high school mountain bike team.