Trail Running calendar near Castle Rock 2025-2026

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.

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.

Discover seldom run single track at Indian Creek Campground in Sedalia Colorado on October 18 2025 with 50 Mile, 55k, 15 Mile and 5 Mile options. Enjoy sweeping Front Range views, aid stations, a 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..

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..

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..

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:..

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..

Run scenic mountain trails at Staunton State Park in Pine Colorado with 50k, 16 mile, and 8 mile options that showcase meadows and granite cliffs. Expect a welcoming trail community, stocked aid stations and memorable high country scenery.

Take on the Thumbs Up Vertical Challenge in Estes Park CO on December 6, 2025, a small field test of grit with steep single track laps and sweeping views of Longs Peak and Mount Meeker. With only 30 spots, this intimate winter climb rewards..

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...

The Sourdough Snowshoe Race will take place in Nederland on Saturday 31 January 2026. You can run between 18 and 30 kilometers.

Event overview The Stories Trail Runs take place February 21-22, 2026 at Cheyenne Mountain State Park in Colorado Springs, CO. The combined runner capacity is 225. The event includes timed ultras and traditional distance races, with staging..

Race The Ranch invites snowshoers to YMCA Snow Mountain Ranch in Granby Colorado on April 4 2026 for multiple distances on scenic trails and lesser known loops. Expect challenging climbs, friendly aid stations and great finisher swag.

Run the Ranch is an annual trail running event held at the scenic Sylvan Dale Guest Ranch in Loveland, Colorado. The race offers a variety of distances including 5K, 10K, and timed trail runs of 4, 6, and 12 hours, with options for solo run..