Event details subject to change. Please confirm all information via event website.
Run Rabbit Run Ultra
Steamboat Springs Ski Resort 2305 Mt Werner Cir, Steamboat Springs, CO, United StatesThe Run Rabbit Run courses are very much like life, in that there are many, many little and not so little ups and downs in between the obvious highs and lows. Be prepared. The 50 mile race starts bright and early at 6 AM at the Steamboat Springs ski area (elevation, 6,900 feet) on Saturday, […]
Oktoberfest Triathlon
Union Reservoir 461 County Road 26, Longmont, CO, United StatesThe annual Oktoberfest Triathlon on Saturday September 24th, 2022, is the party of the season and also a 2022 Mountain Collegiate Conference Race! As the leaves change color this race will officially end the Colorado Triathlon Season! It's been a long fun season but before the snow begins to fall let's get one more triathlon […]
Sangre de Cristo Ultras
Music Meadows Ranch 6076 Co Rd 119, Westcliffe, CO, United StatesCome join us on the Rainbow Trail in the Sangre de Cristo mountains. Run beneath the watchful eye of these gorgeous, and ominous, mountains. This race is full of festivities, friends, challenge, and joy. Camp out with the HPRS tribe, whichever distance you choose you’ll wander through the Southern Colorado Rocky Mountains, and embrace the […]
Bear Chase Trail Race
Bear Creek Lake Park 15600 W Morrison Rd, Lakewood, CO, United StatesThe Bear Chase Race Endurance Festival is a 100K, 50 Mile, 50K, Half Marathon, Baby Bear 10K and 5K trail race at beautiful Bear Creek Lake Park, in Lakewood, CO. Ultra races on Saturday, short trail races on Sunday An excellent race for first time trail and ultramarathoners, runners will experience a variety of challenging […]
Colorado Springs Marathon
Pioneers Museum 215 South Tejon Street, Colorado Springs, CO, United StatesJoin us for the 13th Annual Colorado Springs Marathon on Saturday, October 3, 2026! Whether you're a seasoned runner or taking on your first 5K, we have four exciting race options to choose from. Each course highlights the stunning beauty of Colorado Springs—winding past historic landmarks, through scenic parks, and finishing downtown at the Colorado […]
Taco Bell 50K
Taco Bell 447 S Broadway, Denver, CO, United StatesIt has been described as Urban Legend. More mysterious and barking spiders than the Barkley Marathons. The International Taco Bell 50k boasts a higher DNF rate than the famed Leadville 100 Trail Race. As the tale is told, the race began with a hot tub, a stoic Russian, a short king from New York, and […]
HRCA Wildcat Mountain Trail Races
Rocky Heights Middle School 11033 Monarch Blvd, Highlands Ranch, CO, United StatesThe Wildcat Mountain trail races take place starting at the Douglas County East/West trailhead at Rocky Heights Middle School and run along the E/W trail to the beautiful HRCA Backcountry Wilderness Area Wildcat Mountain trail system. 10 Mile and 10K
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 calculated using an algorithm developed by Bob Royse, and it's geared to favor a beginning runner and the slower runners. Click here for an explanation of the […]
Emerald Mountain Trail Run
Howelson Hill Steamboat Springs, CO, United StatesThis races offers two distances on Emerald Mountain, 12k (ends up being closer to 7.75 miles long) and a 4 mile run. This scenic course will begin at the base of Howelsen Hill and tour Emerald Mountain through aspen lined single track. Hikers are welcomed in the 12k. This race is a fundraiser for Northwest […]
RMRR 8M and 5K
Star K Ranch 16002 E Smith Road, Aurora, 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 goal to shoot for whatever your speed. Just show up an hour before the start and we’ll get you ready for your race. It’s an […]
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