Trail Running calendar near Parker 2025-2026

We have found 47 Trailruns within 80 miles of Parker. See below where and when you can find the races.

Suffer Better Fall Trail Runs take place at Staunton State Park, just off Highway 285 near Conifer, Colorado. The event offers four distances: 50K, 25K, a 25K FishSlappers edition, and a new 5K. The course showcases CO’s best trails—lovely,..

Boulder XC Series Meet 1 is a family-friendly cross-country event held at Valmont City Park (South) in Boulder, Colorado (5110 Valmont Rd). The meet offers three distances: 1K for younger runners, 3K for those up to 16, and a 5K open race,..

Rocky's Backyard Ultra near Estes Park has runners loop 4.167 miles each hour until one remains, with Long's Peak views and 500 feet of climb. Expect variable October mountain weather, aid station, cash and buckle prizes.

Run scenic single track trails near the Denver skyline at the Great Trailhead Foot Race in Bear Creek Lake Park on October 18, 2025. Choose 5 or 10 miles, get a tech tee and post run party, and 10 mile finishers earn a mug.

Event overview The Blue Sky Marathon & Half takes place October 18-19, 2025 on trails between Horsetooth Mountain Park and Devil’s Backbone Open Space in Fort Collins, Colorado. Distances offered: 26.7 miles (3,500 ft elevation gain/lo..

Explore Palmer Park's rocky single track and sweeping city and mountain views at the Bobcat Trail Races in Colorado Springs. Choose from 50K, 25K, 10K or 5K and test your trail legs on technical, scenic routes.

Run scenic single track around Indian Creek Campground in Sedalia Colorado on October 18 2025, with distances from 5 miles to 50 miles and sweeping red rock and mountain views. Limited field, well stocked aid, race shirt and finisher medal.

Tackle scenic dirt trails at Bear Creek Lake Park with 5 km, 15 km, a 5 plus 15 double, or a kids 1 km. Registration includes socks or a neck gaiter and a pancake breakfast while kids earn a stuffed bear at the finish.

Bridge Burner Ultra in Cañon City, Colorado, is a scenic single loop along the Arkansas River, through Tunnel Drive and over the highest bridge in the United States with stunning Royal Gorge and Pikes Peak views. Distances from 10K to 35 mi..

November 2025

The Colleen De Reuck XC Classic is a cross country running event held annually at Harlow Platts Community Park in Boulder, Colorado. Honoring renowned distance runner Colleen De Reuck, the race promotes health, fitness, and celebrates local..

Colorado 24 Hour Run takes place in Fort Collins, Colorado, at 4927 E. County Road 36. The event offers multiple distance options: 24-hour, 12-hour, and 6-hour races, plus 24-hour, 12-hour, and 6-hour relays.Runners complete laps on a one-m..

BINGO! Trail Party : basic info The BINGO! Trail Party takes place on Saturday, November 8, 2025, at May Farms in Byers, CO. The event has a combined runner capacity of 300 and is organized as multiple levels with different distance ranges:..

Event The Kokopelli XC Invitational takes place on November 8, 2025 at the El Pomar Youth Sports Complex, 2212 Executive Circle, Colorado Springs, CO. The 2025 event adds a USATF Open/Masters division as part of the Colorado Long Distance G..

The HRCA Backcountry Wilderness Half Marathon is an annual 13.1-mile trail race held in Highlands Ranch, Colorado, featuring a scenic single-loop course through the Douglas County East/West trail and the Backcountry Wilderness Area. The rac..

Located in Colorado Springs’ North Cheyenne Cañon Park, the Canya Cañon Trail Race & Family Hike offers a 4-mile trail race along the Columbine Trail, starting at the Starsmore Visitor & Nature Center (2120 S Cheyenne Canyon Rd). The course..

Run the Louisville Trail Race on November 15, 2025, amid the Flat Irons with 13.1, 10K or 5K dirt courses on scenic trails. Enjoy post race festivities and bring a reusable cup or purchase one onsite.

Event overview The Colorado Cold Rush Ultra takes place on November 22, 2025, in Colorado Springs, CO, with the start/finish at Bear Creek Regional Park West. Offered distances include: 50k Half Marathon 10k Registration closes on Novembe..

December 2025

Event overview The Thumbs Up Vertical Challenge takes place in Estes Park, CO on December 6, 2025. The event is an ascent-based out-and-back format on the Thumb Open Space trail. At the trail turnaround, runners collect a poker chip and dep..

Run scenic high country trails at Staunton State Park on Dec 6 with 50K, 16 mile and 8 mile options, plus well stocked aid stations and sweeping mountain views. Park pass is required and limited parking means most use a park and ride shuttl..

January 2026

USCSA Cross Country Ski Racing Festival, hosted by Colorado Mesa University at Snow Mountain Ranch Nordic Center in Granby, Colorado, on January 24–25, 2026, brings collegiate teams together with junior skiers for a two-day Nordic festival...