Event details subject to change. Please confirm all information via event website.
Boulder Sunrise 5K/10K
Boulder Reservoir 5565 N 51st St, Boulder, CO, United StatesThe Boulder Sunrise 10k & 5k Run has a reputation of being one of the most scenic courses around. BBSC will provide runners with a supported course, including plenty of aid stations fully stocked and staffed with volunteers. Once you reach the finish line enjoy the post-race party with music, beer, food, and awards! This […]
Let Freedom Run
Louisville Recreation and Senior Center 900 Via Appia Way, Louisville, CO, United StatesDress up as your favorite American Hero! This could be your mom, dad, Albert Einstein, Batman, Superman, or the Powerpuff girls! This event is all about celebrating GREAT people who do and have done GREAT things! Come be GREAT with us!
Let Freedom Run 5K
Sandstone Ranch Open Space Sandstone Ranch Perry Park Road 80118, Larkspur, CO, United StatesDress up as your favorite American Hero! This could be your mom, dad, Albert Einstein, Batman, Superman, or the Powerpuff girls! This event is all about celebrating GREAT people who do and have done GREAT things! Come be GREAT with us!
Hahns Peak Hill Climb
Hahns Peak 64625 County Rd 129, Clark, CO, United StatesThis trail race is a new event that started in 2017 at the base of Hahns Peak in North Routt County. Running this course started with a few hardcore North Routt locals meeting at the beautiful Cabins at Historic Columbine every 4th of July. From there, they would race to the summit and fire outlook […]
Silverheels Trail Runs
Como Roadhouse 441 Boreas Pass Rd, Como, CO, United States**BIG CHANGES TO SILVERHEELS** HPRS continues to work in earnest on a newly revamped Silverheels Trail Runs experience. Traditionally the Silverheels 100-Mile was held in concert with The Last Call Fifties, and on the same weekend. We made the decision to move on from the “Last Call” name except for it’s attribution to the 50-Mile. […]
CMRA Elk Meadow Trail Run
Elk Meadow Park 2855 Bergen Peak Drive, Evergreen, CO, United StatesCome up to scenic Elk Meadow Open Space for an exhilarating 5.1 mile trail run. This is a timed event that starts and ends near the Lewis Ridge Trail Head.
Boulder Peak Triathlon
Boulder Reservoir 5565 N 51st St, Boulder, CO, United StatesThe Boulder Peak Triathlon, Duathlon & Aquabike on July 10th is one of the countries longest and most well-known triathlons. For the veteran or first time racer, this is THE can’t miss event of the summer triathlon season, and the crown jewel of the Colorado Triathlon Series. Racers are tackling the infamous “Olde Stage” Hill, […]
Silverton Alpine Marathon
Memorial Park - Silverton 1800 Greene St, Silverton, CO, United StatesExperience the best of the San Juan Mountains with an 8 miler, a marathon, or a 50 kilometer run along the Alpine Loop past the historic mining ghost towns of Howardsville, Eureka, Animas Forks & Gladstone. High point is 12,930 ft atop California Pass. Low point is Silverton at 9,318ft. Total vertical gain is 3,800 […]
Tri Boulder
Boulder Reservoir 5565 N 51st St, Boulder, CO, United States‘The Beast’ Long Course distance will be back for its second year! As one of Colorado’s most popular summer triathlons, Tri Boulder offers many different multisport race distances, all in one eventful day. Take in the natural beauty of the mountain backdrop that sets the scene for this iconic race destination. Most of the bike […]
Spring Creek Memorial Trail Run
Spring Creek Trailhead Steamboat Springs, CO, United StatesThis race is held in memory of Patty Brenner Hagberg who was struck and killed by a truck along the lower part of the trail in 1991. This race should remind all of us the importance of sharing multi-purpose use trails. The race is held on the beautiful Spring Creek trail with wildflowers and Aspen […]
Please click here to submit your event for FREE to our online calendar.
We do not allow events without physical locations (IE – virtual runs, runs with locations TBD, etc…).
Please allow 48 hours after submission for an event to appear on the calendar. If you have already listed your event and would like us to update it, please contact us.