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Mar

29

2026

Fort Collins, Colorado (United States of America) - "Spring Equinox Half Marathon". Beautiful Colorado! Scenic country roads make for a great spring half marathon! Course is a mix of paved & dirt roads rolling through local farms and small communities set alongside the foothills of the Rocky Mountains in Northern Colorado. https://equinoxraces.com

Apr

05

2026

denv, Colorado (United States of America) - "Three Creeks 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 Cottonwood Creek on a mix of road, paved running trail, and wide dirt trails. Live online results and athlete tracking will be available. with splits at 5k, the halfway point, and 10 miles. www.racingunderground.com

Apr

11

2026

Littleton, Colorado (United States of America) - "Rockin' on the River 5K". Race will start and finish in the amphitheater of the Hudson Gardens and Event Center. Course will take participants through Hudson Gardens to the Mary Carter Greenway. Course is flat and fast, and very scenic with a view of the Platte River almost the entire way. https://runsignup.com/Race/CO/Littleton/RockinontheRiver5K

Apr

12

2026

Denver, Colorado (United States of America) - "Donut Dash". The Donut Dash 5K is Denver's race that ends with donuts. Runners and walkers can take advantage of a flat and fast course, and then enjoy fresh donuts at the finish. Our mission is to bring people together to have a fun, fit morning. www.coloradorunnerevents.com/donut