View some of the best Half Marathon races in Aurora, Colorado! RaceMob's race calendar allows you to find races that suits your needs. Use our advanced filters below or calendar on the right, and discover new races. We try to maintain up to date information, and rely heavily on our community of volunteers. If you find a race that we're missing, use the "Suggest Race" button on the right. Find RaceMob discounts that others have added or add deals that you've discovered.
Come join us for the highest DOWNHILL half marathon in the country and possibly the highest DOWNHILL 4 Mile Run! Do not be misled by the name but this is the Slacker Half Marathon/4M Race! It is the highest downhill half marathon in the country–b...
Welcome to the Summer Splash Prairie Dog Half, 10k & 5k in Castle Rock, Colorado. Visit www.PrairieDogHalf.com for more information on this event: http://prairiedoghalf.com/summer.html
Welcome to the Staunton Rocks! Marathon & Half, an event put on by trail runners for trail runners. Touring the renowned singletrack of Staunton State Park in Colorado’s Front Range Mountains southwest of Denver, the race will take you back in...
The tragic events of 9/11/01 changed our nation forever. Let us not forget our proud history and those who fight everyday to keep us free. Please join us for this special day on this beautiful, flat, fast 1.05-mile loop course. The 100-mile race c...
This is our 10th year of our Superhero Event! We are so excited to celebrate this milestone! We will be back at Greeley's Family FunPlex and runners can participate in person in our 10K, 5K, 1 Mile and a free kids run or they can participate in ...
Showcasing a unique city-to-city trail connection, The Long View Marathon and Half Marathon runs from Fort Collins to Loveland. Together, Gnar Runners and Sweetheart City Racing bring a unique collaboration to Colorado’s running scene in this one-...
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