Trail Running Calendar Colorado 2024-2025

The Beware The Bear Trail Races, held at Bear Creek Lake Park in Lakewood, CO, features a variety of race options including a 5K, 15K, a combined 5+15 Double, and a Kids 1K. Scheduled for October 26, 2024, the event offers mostly dirt courses with a mix of single and double track trails, providing a..

The Bridge Burner Ultra is an exciting running event taking place in Canon City, Colorado, featuring multiple race distances including a 35-mile loop, 50K, 35K, and 10K. The course begins in the historic mining town and follows the scenic Arkansas River, leading runners through granite tunnels and u..

The HRCA Backcountry Wilderness Half Marathon is a scenic 13.1-mile trail race taking place in Highlands Ranch, Colorado. Scheduled for November 2, 2024, this event features a single-loop course that traverses dirt, gravel, and singletrack paths, offering participants stunning mountain views and opp..

The Kessel Run Ultra is an exciting running event held in Fruita, Colorado, featuring multiple race distances including 50 miles, 60K, 20 miles, and 10 miles. Set against the stunning backdrop of the Western Slope, the course offers a combination of smooth and technical singletrack trails, providing..

The BINGO! Trail Party, organized by the Human Potential Running Series, is a unique running event taking place at May Farms in Byers, Colorado. Scheduled for November 9, 2024, this event features multiple levels of participation, ranging from 6 to 54 miles. Runners aim to achieve a "Bingo" by pulli..

The Lionshead Ruck will take place in Pine Junction Area on Saturday 9 November 2024.

The Canya Cañon Trail Race is an exciting running event held in North Cheyenne Cañon Park, featuring a scenic 4-mile course that ascends the Columbine Trail. Participants of all ages, including runners and hikers, are encouraged to join this community-focused event. Proceeds from the race support th..

The Reuter-Hess Trail Incline is a running event taking place in Parker, CO, featuring a challenging 10k course and a 1-mile kids race. The 10k course includes a unique lollipop loop with a mix of flat, rolling, and rocky terrain, as well as a steep incline with approximately 600 feet of elevation g..

The Mountain Peacock 50k is an inaugural ultra running event set in Golden, Colorado, designed for adventurous spirits seeking a no-frills experience. Participants will conquer four peaks—South Table Mountain, North Table Mountain, Mount Galbraith, and Lookout Mountain—while navigating a self-suppor..

The Colorado Cold Rush Ultra is a unique winter running event held in Colorado Springs, featuring a scenic course that runs along historic High Drive and through tunnels from the Colorado gold rush era. Participants can choose from various distances, including a 50K, half marathon, and 10K, all set ..

The Sawmill Trail Runs, part of the Human Potential Running Series, will take place on December 7, 2024, at Staunton State Park in Pine, Colorado. This annual event features three distance options: a 50k, a 16-mile, and an 8-mile run, with a combined capacity of 200 runners. The course showcases the..

The Thumbs Up Vertical Challenge is an exciting running event held at the Thumb Open Space in Estes Park, CO. Participants will embark on an 8-hour ascent along a 1km out-and-back trail, gaining 540 feet in elevation. Runners must collect poker chips at the turnaround point to track their progress, ..

Santa's Summit Slam is a versatile running event that takes place in Estes Park, Colorado, featuring a 5-mile course that may include trail running, snowshoeing, or a combination of both. The race offers a unique experience with 30% gravel roads and 70% single-track trails, accommodating various wea..

The Stories Trail Runs, hosted by the Human Potential Running Series, is an exciting winter trail running event set in Colorado Springs, CO, at Cheyenne Mountain State Park. Scheduled for February 15-16, 2025, the event features a variety of races, including a 10k, Half Marathon, and timed ultra eve..

The Winter's End Snowshoe Races, taking place at Granby Ranch Resort in Granby, CO, is an exciting winter running event designed for participants of all skill levels. Scheduled for March 8, 2025, the event features multiple race distances, including a marathon, 16-mile, 8-mile, and a 2-mile fun run...

The 20th Annual Run Through Time Trail Marathon and Half Marathon will take place in Salida, Colorado, featuring a marathon, half marathon, and a 2-mile run. The event showcases scenic and challenging courses on dirt roads and narrow single tracks, with elevations ranging from 7,000 to 9,000 feet. P..

The Desert RATS Trail Running Festival by UTMB offers an exciting weekend experience for both novice and experienced trail runners. Set in the stunning landscapes of Fruita, Colorado, the festival features four unique race distances over three days, including a 100K, 50K, 21K, and 10K. Participants ..

The Rattler Trail Race is an exciting running event held in Colorado Springs, featuring three race distances: 50K, 25K, and 10K. Set in the scenic Palmer Park, participants can enjoy stunning views of the city and Pikes Peak while navigating the park's rocky trails. The event aims to showcase one of..

The Royal Gorge Groove is an exciting running event held in Cañon City, Colorado, featuring a variety of distances including 50K, 30K, 20K, 12.5K, 5K, and a Kids Run. All races start and finish at the Gunslingers Club at Royal Gorge Ranch & Resort, offering participants stunning views along the rim ..

The Greenland Trail Races, held annually in May at the Greenland Open Space in Larkspur, Colorado, features four race distances: 4 miles, 8 miles, 25K, and 50K. This event is known for its scenic trails with views of Pikes Peak, offering participants a chance to achieve personal bests on soft dirt p..