Event details subject to change. Please confirm all information via event website.
The John Cappis
What A free mountaineering jaunt originated by James Varner in honor of the legendary John Cappis, one of the founders of the Hardrock 100. The course gets tweaked from year to year, but here is the fundamental idea: Summit several of the peaks surrounding Silverton Unmarked course (gps track provided) Mostly off-trail Approximately 50k and […]
Timberview Trail Run
Crisp morning air and a summer sunrise in Colorado. YES PLEASE! Join us on the foothills at Lory State Park for a fun & beautiful morning trail race. This run race features three distances (a 10 mile, a 5 mile and a 5K) that are great for just about any level athlete at any age. Run on […]
Lake to Lake Triathlon
Loveland Lake to Lake Triathlon has welcomed athletes from Northern Colorado, this entire state, region, country, and outside the USA for 24 years and we are excited about our 2025 edition. Athletes have ONE OPPORTUNITY each summer to compete at this beautiful venue. Loveland CO~ one opportunity, one time each summer on a Saturday morning […]
Slacker Half Marathon
The Slacker races are always held on the 4th Saturday in June! We’re excited to announce a new change for next year: wave starts will be enhanced to help ensure a smoother race start. Be sure to watch for this update when registering! We can’t wait to see you at the starting line!
Before The Fourth 5K
Come join the Before The Fourth 5k for some healthy fun in Clement Park. The park is located just south of Denver, in Littleton, Colorado. This is a great opportunity to build community and run in a great location with plenty of local spots to hang out with friends and family afterward.
Chase the Moon Trail Race
Chase the Moon is a 12-hour team relay and solo ultramarathon, run overnight under the light of the full moon in the Highlands Ranch Backcountry trail system (we promise some of the best views of the metro and front range). Run as a solo ultrarunner, or get your fellow moon-chasing friends for a 3-person or […]
Blue Sky Ascent
Although the air will be noticeably thin at the starting line, Echo Lake's 10,600 feet of elevation is just the beginning. The climb totals nearly 4,000 vertical feet - much of it above treeline - as you make your way 14.5 miles to the finish line located at the summit of one of the most […]
Boulder Sunrise Triathlon
Join us in celebrating the start of summer in the triathlon capital of the country, Boulder, CO. An athlete favorite with its breath-taking sunrise swim, fast bike and smooth run course, all with the flatirons painted in the background. You’ll never want to race another venue again after this experience! The seasoned race crew led […]
Boulder Sunrise 5K/10K
The Boulder Sunrise 10k & 5k Run has a reputation of being one of the most scenic courses around. BBSC will provide runners with a supported course, including plenty of aid stations fully stocked and staffed with volunteers. Once you reach the finish line enjoy the post-race party with music, beer, food, and awards! This […]
July 4th ROCK-IT RUN
Join Run to Change Lives at the Douglas County Event Center in Castle Rock for the 2nd Annual ROCK-IT RUN 5K, Half Marathon and 1K Little Rock-It RUN (8 years and under). It’s time to start a new tradition on July 4th and feel good about Changing Lives. Save 15% with coupon code CORUNNER.
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