Trail Running calendar near Severance 2025-2026

Experience The Bear Chase at Bear Creek Lake Park in Lakewood, CO with distances from 5K to 100K on fast singletrack trails and sweeping views. Ideal for first time ultrarunners and trail runners seeking a challenging festival weekend.

Silent Trails Memorial Race : Laramie, WY The Silent Trails Memorial Race is a memorial running event organized by High Plains Harriers. The race was established in 2002 to honor and celebrate the lives of eight University of Wyoming cross..

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.

Indian Creek Trail Runs : October 18, 2025 The Indian Creek Trail Runs is a multi-distance trail event held at Indian Creek Campground in Sedalia, CO. Distances offered: 50-Mile 55k 15-Mile 5-Mile The event uses single-track trails throug..

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..

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.

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:..

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..

Run scenic Front Range trails with views of the Flat Irons at the Louisville Trail Race. Pick a half marathon, 10K, or 5K then enjoy post race festivities, cupless aid stations with reusable cups, and volunteer swag.

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..

Event overview The Twin Mountain Trudge takes place on January 10, 2026 in Laramie, WY. This is the 22nd running of the event. Registration opens on October 1, 2025. Two race options are offered. ~10.2 miles ~20.5 miles Course, aid, and r..

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...

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..

The Great Western Trail Race, held in Severance, Colorado, offers a variety of running events including a 5K, 10K, half marathon, and a Kids Fun Run. Scheduled for April 18, 2026, this race welcomes participants to enjoy spring racing in a..

Niwot’s Challenge is an invitation only, navigation driven ultra near Sedalia CO that emphasizes self reliance on rugged off trail terrain. Choose roughly 24, 50, or 100 mile routes with massive elevation gain and strict no GPS rules for a..