Half Marathon

Travel on foot through some of the most beautiful parts of Cherry Creek State Park, with a total combined elevation gain of only 253 feet spread out over 13.1 miles as the course follows the banks of Cherry Creek, Windmill Creek, and…

The Ralston Creek Half Marathon and 5K follow a mix of roads and bike paths on the west side of Arvada. The 5K is mostly flat and fast, with a small rise in the final mile. The opening four miles of the half-marathon are fairly flat,…

Held on the Autumnal Equinox during the height of fall color, the Equinox Marathon, Half Marathon and 5-miles races are all point-to-point, net downhill, scenic courses along the Cache La Poudre River in Fort Collins. This year, the event…

The Best Dam Run you will ever do! Come CRUSH the Dam - run our Half Marathon, 10K, or 5K. You will have amazing views of Denver and the Rocky Mountains as you run along Cherry Creek Dam Road. COME CRUSH THE DAM! RACE HIGHLIGHTS:…

Both races start & finish at Sparge Brewing in Wellington 3999 GW Bush Unit 101, Wellington, CO 80549   4-Mile course is a square loop around the brewery on paved county roads. Half Marathon course runs on a mix (50/50) of…

Celebrate Independence Day with us, and join the Half Marathon or 5k distance! Walkers and Runners of all abilities welcome!

Welcome to the 52nd running of the Horsetooth Half Marathon. Your race will take you on a scenic point-to-point journey from Hughes Stadium, the former home of the CSU Rams, to the finish line party at New Belgium Brewery. On the way you’ll…

The Colorado 13er is THE event where the best parts of trail running and road racing combine to create a truly enjoyable, kind-to-your-body, well-supported 13.1 race! Seasoned runners and first-timers alike appreciate the excellent…

The Boulder Rez Marathon is quickly becoming a Boulder classic! This isn’t just another run around the lake. September temperatures will create the perfect race atmosphere. BBSC will offer a Marathon, ¾ Marathon, Half Marathon, 10K…