Trail Running calendar near Eagle 2026-2027

Crested Butte's oldest trail challenge offers a classic 15k run and a 25k loop. A mountain bike event joins the lineup, tackling a rugged 14.8-mile course. This low-frills event focuses on the trail experience over awards.

Event Overview The Silver Rush 50 Run is a running event scheduled for July 11, 2026. The event features multiple race distances: a 50-mile run, a 15-mile run, and a 5K Juniors run. There is also a Silver King & Silver Queen challenge f..

The High Lonesome 100 is a 101-mile mountain ultra through the Sawatch range. Runners traverse the Continental Divide, pass ghost towns, and climb over five alpine passes with 23,500 feet of total gain. This loop course offers a mix of sing..

Tackle the Stagecoach Trail at Powderhorn Mountain Resort. Choose between a steep 5K climb or a demanding 15K that goes up the mountain twice. The registration includes a lift pass, t-shirt, and post-race food.

Run through wildflowers and Aspens along Spring Creek in Steamboat Springs. Choose between a challenging 9.5-mile loop with significant climbing or a rolling 5K out-and-back. This memorial event includes a post-race meal.

Run scenic mountain trails around Aspen Snowmass at the Audi Power of Four Trail Run on July 18, 2026. Choose from 10K, 25K or an epic 50K and enjoy challenging terrain, alpine views and Audi supported race day energy.

The TransRockies Run is a three-day stage race through the Colorado Rockies, from Hope Pass to Red Cliff. Choose between the 51-mile Full Pint or the 35-mile Half Pint. Runners finish each day at a fully supported camp with meals, showers,..

Event Details The Never Summer 100km & 60km is a mountain trail running event scheduled for July 24-26, 2026. It is organized by Gnar Runners. The races start and finish at the Gould Community Center in Gould, Colorado. The event takes..

Grand Mesa Ultras This trail running event takes place on the Grand Mesa in Colorado, described as the world's largest flat-topped mountain, with an average elevation over 10,000 feet. The event offers three race distances: 50 Miler, 55K, a..

Course and Terrain The Summit 200 is a 200-mile single-loop ultramarathon in Summit County, Colorado. The non-repetitive course utilizes hiking trails, 4WD roads, and recreation paths, with the majority being single-track trail and infreque..

Experience high altitude trail running at an average elevation of 10,600 feet in Fairplay, Colorado. Choose between a technical ultra marathon or a flowing half marathon through the scenic South Park Valley.

The Aspen Backcountry Maratons return on August 1, 2026 with three distances: 50K, marathon, and "heavy half" marathon. Participation requires a CORSAR search and rescue card, available online. This event is held alongside the Rotary Club A..

Explore high-alpine trails in Winter Park, Colorado. This event offers a scenic 50K point-to-point route from the resort into town, plus 21K and 10K options. It finishes in a vibrant park with community festivities.

The Buena Vista Pack Burro Race offers a unique running experience in Colorado. Participants can choose a long or short course, racing either with or without a burro. The event includes finisher gifts, a meal, and awards for top finishers.

Event Overview Run the Rockies Trail Race is a trail running event held in Frisco, Colorado. The event offers three distances: a 5 km, a 10 km, and a half marathon. All races start and finish at the Frisco Nordic Center on Recreation Way. C..

Event Overview The Emerald Mountain Epic is a two-day trail race held in Steamboat Springs. It features mountain biking on August 8 and trail running on August 9. The event is a fundraiser for two local nonprofits: Routt County Riders and P..

The Leadville Trail 100 Run is a legendary 100-mile ultramarathon in the Colorado Rockies. With over 15,000 feet of elevation gain and a summit over 12,500 feet at Hope Pass, it's a massive high-altitude challenge. Finishers within 30 hours..

Experience the high-altitude scenery of Leadville on this 10K course, which follows the first and final miles of the famous LT100 Run. With a single aid station and awards for top finishers, it's a classic mountain run. Registration is open..

Run on 100% unpaved trails in the Rocky Mountains near Fraser. Choose between a high-elevation half marathon or a 5K, with leashed dogs welcome. All proceeds support the Shining Stars Foundation.

Experience high altitude trail running through the aspen groves and ski resorts of Arrowhead and Bachelor Gulch. Choose between a challenging half marathon with significant elevation gain or a scenic point to point downhill 5K.