CMRA John Meade 6K
John Meade Park 2450 E Quincy Ave, Englewood, CO, United StatesWe will start with a loop of John Meade Park before heading onto the Cherry Hills Trail for an out-and-back short cirtcuiting the initial loop. This race will be ~3.875 […]
SUP-Athlon
Cabin Creek Brewing 577 Twenty-Second Street, Georgetown, CO, United StatesLooking for a new summer tradition suitable for all abilities?! Join us this July for the Georgetown SUP-Athlon! Participants will embark on a 0.5-mile stand-up paddleboarding journey along the scenic […]
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 […]
Greenland Pack Burro Race
Greenland Open Space 1532 E Noe Rd, Larkspur, CO, United StatesWelcome to the annual Greenland Open Space Pack Burro Races presented by Double Rainbow Ranch! Grab your burro and join us for a fun and rewarding day on the majestic […]
High Lonesome 100
County Road 321 Nathrop, CO, United StatesThe High Lonesome 100 is a high flying endurance race in the Sawatch range of the Colorado Rocky Mountains. With 22,500' of vertical gain and reaching an elevation of 13,150', it's a hell of a course. The race runs in a loop through some of the most beautiful single track in the state, and takes runners on the Continental Divide and Colorado Trail, through 2 ghost towns, over 5 alpine passes, through remote basins, and over soaring ridges. This year's event takes place on July 30th.
Audi Power of Four Trail Race
Aspen Mountain 601 East Dean Street, Aspen, CO, United StatesThe Audi Power of Four Race Series is a premier endurance race series utilizing the unique and amazing terrain of each of the four Aspen Snowmass mountains. Each race is […]
Summer Splash Prairie Dog Half Marathon
Castle View High School 5254 N. Meadows Dr., Castle Rock, CO, United StatesWelcome to the Summer Splash Prairie Dog Half, 10k & 5k in Castle Rock, Colorado. Part of the Prairie Dog Half race series, join us in July as we race […]
Summer Sizzler 5K/10K/15K
America the Beautiful Park Cimino Dr, Colorado Springs, CO, United StatesJoin us on July 15th, 2023 for the annual Summer Sizzler, featuring the amazing scenery of America the Beautiful Park! Whether you are looking to run, walk or just enjoy […]
Heritage Eagles 5K
Heritage High School 1401 W Geddes Ave, Littleton, CO, United StatesSupport the Heritage Eagles cross country team at the annual Heritage Eagles 5K. Last year's race, raised over $3,500 for the Heritage Eagles xc team; $ 10.00 of every registration […]
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 […]
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.