Event details subject to change. Please confirm all information via event website.
Buffalo Run 5K
Grand Lake Center 301 Marina Dr, Grand Lake, CO, United StatesHeld during Grand Lake's iconic Buffalo Days weekend, the Buffalo Run 5k route passes through the charming town of Grand Lake, along the scenic shores of Colorado's highest and deepest […]
Summer Sizzler 5K
Cottonwood Creek Park 3920 Dublin Blvd, 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 […]
Erie Half
Reliance Park 900 Weld County Road 1.5, Erie, CO, United StatesJoin us for the Erie Half and 5k! The Hometown Race Series features half marathons and 5k distance events in outlying communities outside the Denver and Boulder metro areas. LOOK […]
Race for Research 5K
Washington Park - Denver 701 S Franklin St, Denver, CO, United StatesThe Annual Cancer League of Colorado Race for Research 5K is excited to be back to the full event you love at Washington Park in Denver! The Race for Research […]
Staunton Rocks! Trail Marathon
Staunton State Park 12102 S Elk Creek Rd, Pine, CO, United StatesWelcome to the Staunton Rocks! Marathon & Half Marathon, an event put on by trail runners for trail runners on August 28, 2021. Touring the renowned singletrack of Staunton State Park in Colorado’s Front Range Mountains southwest of Denver, the race will take you back in time as you glide by historic buildings and old milling operations.
Impact Uganda 5K/10K
Howell Construction 8085 E Harvard Ave, Denver, CO, United StatesUPDATE: New Route and New Swag The new route starts at the same location and avoids crossing streets. Check out the new SWAG for this year. The Fifth Annual Impact Uganda Fun […]
We Run So They May Walk 5K
Saint Peter Lutheran Church 9300 East Belleview Ave, Englewood, CO, United StatesWhen: Saturday, August 23, 2025, 8:00 a.m. (Check-in begins at 7:15 a.m.) Where: begins and ends at Saint Peter Lutheran Church, 9300 E. Belleview Ave., Greenwood Village. $40 includes race […]
Byers Peak Stampede
High Country Stampede Rodeo 1741 Co Hwy 73, Winter Park, CO, United StatesPush your limits with these stunning, remote races in the heart of the Rocky Mountains - located just 60 miles outside of Denver! Our Half Marathon and 5K are perfect […]
Thirsty 13 Half Marahton
Ska Brewing Durango, CO, United StatesIt's a race. It's a Brewfest. It's the Thirsty 13 Half Marathon! Are you thirsty for gorgeous scenery? You won't find a course more beautiful than this one. With the […]
Arrowhead Half Marathon
Arrowhead at Beaver Creek 160 Cresta Rd, Edwards, CO, United StatesThe Vail Recreation District is excited to announce a NEW venue for one of our favorite events in the 2021 Dynafit Vail Trail Running Series - The Dynafit Half Marathon and 5K at Arrowhead in Beaver Creek on August 21st.
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