PPRR Nielson Challenge
North Monument Valley Park 1794 Culebra Ave., Colorado Springs, CO, United StatesRace Format The first time you run this event, you'll establish a base time for yourself. This base time is used to generate a handicap time. The handicap time is […]
Barr Lake Trail Race
Barr Lake State Park 13401 Piccadilly Road, Brighton, CO, United StatesThe Barr Lake Trail Race returns to Brighton, CO, offering beautiful lake views and a prime opportunity for new PRs. Now in its sixth year, this event features our flattest […]
Ironman 70.3
Boulder Reservoir 5565 N 51st St, Boulder, CO, United StatesBoulder has been a household name in the world of triathlon for decades. This endurance community has built a reputation among triathletes for training hard, racing fast and enjoying every […]
Winter Park Hill Climb
Winter Park Resort 85 Parsenn Rd, Winter Park, CO, United StatesJoin us for a 10K hill climb, 10K run, or both. Ride up, run up, or double up! From junior athletes up to professional racers, we have a category that […]
Father’s Day Classic
Apex Center 13150 W 72nd Ave, Arvada, CO, United StatesIt's an annual Fathers Day tradition in Arvada! All are welcome - walkers, joggers and speed demons, too! Swag includes t-shirts for ALL participants! There is a 5K and 10K. […]
Unicorn 5K
Carpenter Park 3498 E 112th Ave, Thornton, CO, United StatesReady to get off the sofa and gallop around Thornton with some friends? Yeah, you are! Come frolic with us at the Unicorn Runner 5k in Thornton to kick off […]
Estes Park Backyard Ultra
Estes Park High School 1600 Manford Ave, Estes Park, CO, United StatesThe Backyard Ultra with the views. The Backyard Ultra is a form of Ultra race where runners must complete 4.167 miles in less than one hour, every hour, until only one […]
Boulder Sunrise Triathlon
Boulder Reservoir 5565 N 51st St, Boulder, CO, United StatesJoin 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 […]
Boulder Sunrise 5K/10K
Boulder Reservoir 5565 N 51st St, Boulder, CO, United StatesThe 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 […]
Chase the Moon Trail Race
Mountain Vista High School 10585 Mountain Vista Ridge, Highlands Ranch, CO, United StatesChase 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 […]
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