Event details subject to change. Please confirm all information via event website.
The Wheat Ridge Half
New Image Brewing Company - Wheat Ridge 9505 West 44th Ave, Wheat Ridge, CO, United StatesRMRR Stone House 2M
Stone House Park 2800 S. Estes St., Lakewood, CO, United StatesEveryone – slow, fast, or in-between – can win at RMRR Trophy Series races. With our handicap scoring system, we predict YOUR finish time based on recent running results, giving you a great […]
Gold Roots Trail Series #2
Courtney Ryley Cooper Park 2350 Colorado Blvd, Idaho Springs, CO, United StatesRun the Mighty ARGO hill this summer in a 4 race series! You will have the option of a short loop (~5 miles, ~750' gain) or a long loop (~9 […]
Hardrock 100 Endurance Run
Memorial Park - Silverton 1800 Greene St, Silverton, CO, United StatesAbout The Run The Hardrock Hundred Mile Endurance Run is an ultramarathon of 100.5 miles in length, plus 33,050 feet of climb and 33,050 feet of descent for a total […]
Frisco Triathlon
Frisco Bay Marina 267 Marina Road, Frisco, CO, United StatesAre you looking for a new challenge this summer? Register for the annual Frisco Triathlon featuring stand-up-paddle boarding, mountain biking, and trail running. This twist on a triathlon is open […]
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 […]
Silver Rush 50 Mile
Leadville 124 E. Sixth Street, Leadville, CO, United StatesTake on 50 miles of extreme territory that starts at 10,200 feet and reaches 12,000 feet on four separate occasions at the Silver Rush 50 Run. It will leave your […]
All-Out Dog Days
Church Ranch Office Park 10170 Church Ranch Wy, Westminster, CO, United StatesGet ready for some fun in the sun and a great mid-season test of your training as we bring our 11th Annual Dog Days 5K, 10K & Half Marathon! Centrally […]
LG Triathlon
Siena at Brightwater 1000 Brightwater Club Drive, Gypsym, CO, United StatesCan you keep a secret? Eagle, Colorado, is a special place, and they have a fantastic triathlon that you should not miss. They're calling for triathlon experts, newbies, and everyone in between, including the kids! Join them on July 9th for the 14th Annual LG Tri, a sprint triathlon held in the beautiful Vail Valley town of Eagle.
Pagosa Duathlon
Turkey Springs area Cnr Turkey Springs & Monument Rds, Pagosa Springs, CO, United StatesThe venue of the San Juan National Forest could not be more perfect for the Pagosa Duathlon as athletes trek through aspen groves, grassy fields, and the dreaded rocky Piedra Stock driveway. Join Rise Above Violence on July 10th in Pagosa Springs for this annual event.
Please click here to submit your event for FREE to our online calendar.
We do not allow events without physical locations (IE – virtual runs, runs with locations TBD, etc…).
Please allow 48 hours after submission for an event to appear on the calendar. If you have already listed your event and would like us to update it, please contact us.