Event details subject to change. Please confirm all information via event website.
Red Feather Trail Jamboree
Ben Delatour Scout Ranch 2331 County Rd 68C, Red Feather LakesRed Feather Trail Jamboree
Ben Delatour Scout Ranch 2331 County Rd 68C, Red Feather LakesWeek of Events
Sangre de Cristo Ultras
Sangre de Cristo Ultras
Come 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 […]
Red Feather Trail Jamboree
Red Feather Trail Jamboree
Come enjoy the clean air and wild spaces of the Red Feather Lakes region in Northern Colorado at the Red Feather Trail Jamboree on September 17th. This 50K and half marathon takes place at the Ben Delatour Scout Camp and are designed to be beginner (or PR) friendly.
Desert’s Edge Triathlon
Desert’s Edge Triathlon
JOIN US AT THE EDGE OF THE DESERT IN WESTERN COLORADO FOR THE 2026 DESERT'S EDGE TRIATHLON SERIES sprint, Olympic, Collegiate draft legal, and Off-Road sprint RACES
Sunday, September 20, 2026
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September 20, 2026 -Pikes Peak Marathon
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September 20, 2026 -Golden Gallop 5K/10K
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September 20, 2026 -Oktoberfest Triathlon
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September 20, 2026 -Second Wind Fund 5K
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September 20, 2026 -Expo Park XC Runs
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September 20, 2026 -Farmers 5000
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September 20, 2026 -Paul’s Mystery Ship To End ALS Walk
Pikes Peak Marathon
The Pikes Peak Marathon, founded in 1956, is the oldest continually held marathon in the United States, taking runners from Manitou Springs, Colorado, to the summit of Pikes Peak at 14,115 feet, and back down for a total of 26.2 grueling mountain miles. It and its sister race, the Pikes Peak Ascent, each climb about […]
Golden Gallop 5K/10K
“Howdy Folks! Welcome to Golden, where the west RUNS!” Starting beneath the City’s famous ‘Welcome’ arch, right in the center of historic downtown Golden, and finishing in Parfet Park beside gushing Clear Creek, the Golden Gallop will lead its runners on 5k and 10k loops. The Golden Gallop is the annual fundraiser for the Golden […]
Oktoberfest Triathlon
The 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 […]
Second Wind Fund 5K
Youth across Colorado are facing growing mental health challenges, and more than ever, they’re reaching out for support. Second Wind Fund is here to answer that call, connecting youth at risk for suicide with timely, life-saving therapy that removes financial and social barriers to care. As the need continues to rise, so does our impact […]
Expo Park XC Runs
Old-school cross-country style courses with creek crossings and bale jumps. Youth races 1k - 4k. All-ages 5k. Individuals and teams.
Farmers 5000
The Farmers 5000 is likely one of the very first school-based 5K fundraisers in the state of Colorado. Since 1981, serious racers and weekend warriors alike have been coming to Wheat Ridge High School to run the Farmers 5000! Starting and finishing in front of the school, this race winds through the surrounding neighborhoods making […]
Paul’s Mystery Ship To End ALS Walk
Paul’s Mystery Ship To End ALS launched in 2020 following Paul Dannels battle with ALS, a disease causing profound physical changes for individuals and families. Our foundation brings hope amid the storm of ALS, supporting research for a cure and providing aid to those affected. We offer essential equipment, scholarships for students impacted by ALS […]
Monday, September 21, 2026
No events on this day.
Tuesday, September 22, 2026
No events on this day.
Wednesday, September 23, 2026
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September 23, 2026Lakewood Trail Running Series IV
Lakewood Trail Running Series IV
The popular trail running series in Bear Creek Lake Park takes place weekly in September. Different routes allow participants to explore all areas of the park. Racers can compete against others in-person on Wednesday evenings, or run the marked course on their own Tuesday-Thursday weekly for a virtual option.
Thursday, September 24, 2026
No events on this day.
Friday, September 25, 2026
No events on this day.
Saturday, September 26, 2026
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September 26, 2026 -Crested Butte Ultra
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September 26, 2026 -WILD Wahatoya Runs
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September 26, 2026 -West Line Winder 50K
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September 26, 2026Cougar Ridge Classic 26K
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Featured September 26, 2026 -Featured Monument Marathon
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September 26, 2026 -So Long to Summer 5K/10K
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September 26, 2026 -Get Your Rear In Gear 5K
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September 26, 2026 -Black Canyon Triathlon
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September 26, 2026 -Elevation Everest
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September 26, 2026 -John Wayne True Grit Trail Half Marathon
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September 26, 2026 -HRCA Oktoberfest 5K
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September 26, 2026 -Night Nation Run
Crested Butte Ultra
Crested Butte is known for having some of the best trails in the country. Runners will be challenged by this high altitude course. Its wide open views will amaze runners as they traverse through the Gunnison National Forest. At the lower elevations, stunning wildflowers set against mountain backdrops will greet runners as they work their […]
WILD Wahatoya Runs
Announcement: All Course Profiles and GPX files are released on the race website! Come join us to run through a magical part of history in the Cuchara Valley. The Spanish Peaks of Southern Colorado have been among the most important landmarks of the southwestern United States, guiding Native American tribes, Spanish and French trappers, gold […]
West Line Winder 50K
With glorious views of the Collegiate Peaks and 4,000ft of ascent along the way, these 30 miles of buttery single track and forest roads in the heart of the valley are perfect for everyone from the first time 50k’er to the veteran trail runner. Join the fun on September 25th in Buena Vista, CO.
Cougar Ridge Classic 26K
We are thankful to be hosted by Vail Ski Resort for our start and Town of Minturn for our finish for the inaugural Cougar Ridge Classic 26K trail race. The course is a point-to-point race, starting at Lionshead Village in Vail and finishing in the Town of Minturn.
Monument Marathon
Register for Nebraska’s Most Beautiful Race - the Monument Marathon, Half Marathon and 5K on September 24th in Gering, just two hours from Fort Collins. Experience towering natural landmarks, pine-covered hills, rugged badlands, and a rural landscape that provides a stunning and tranquil experience. Run along part of the Oregon Trail, the course traverses through Mitchell Pass and around Scotts Bluff National Monument.
So Long to Summer 5K/10K
Part of the Parker Parks and Recreation Run Series, this event is professionally timed. Registered participants will receive a race shirt, custom bib and a delicious post-race pancake breakfast. The FREE Kids' Dash follows the race for children 8 and under; no registration necessary. Any proceeds from the event will benefit the Town of Parker […]
Get Your Rear In Gear 5K
Being part of a Get Your Rear in Gear event means joining North America’s largest grassroots movement in the fight against colorectal cancer. Your actions and voice have the power to change the lives of local patients, survivors, and caregivers!
Black Canyon Triathlon
The Montrose Recreation Foundation proudly presents the 22nd Annual Black Canyon Triathlon will be held Saturday, September 30, 2023. This event attracts about 200 athletes and their families annually to Montrose. It is a well supported sprint distance triathlon. There are individual youth and adult divisions, plus adult and youth teams(2 or 3 members). We […]
Elevation Everest
Elevation Everest is a race series held at Winter Park Resort in Colorado that offers hiking/trail running events centered around one goal: elevation gain. Choose to race solo or make a relay team to divide and conquer the total elevation gain. Athletes race up the mountain, ride the gondola down, and do it all again […]
John Wayne True Grit Trail Half Marathon
The True Grit Run meanders through the forest at the base of the San Juan Mountain where True Grit was filmed. The courses run on single track trails and fire roads on five private ranches only accessible by participating in this event. The spectacular scenery includes views of the San Juan Mountains, the True Grit […]
HRCA Oktoberfest 5K
Put on your lederhosen and sneakers as we kick-start the annual Highlands Ranch Community Association's Oktoberfest event in Town Center with the Oktoberfest 5K! This course is a mixture of both sidewalk and gravel trails and is well-suited for all ability levels. After the race, plan to stick around for all-you-can-eat pancakes from Flippin Flapjacks', […]
Night Nation Run
The Night Nation Run is the World’s first Running Music Festival the ultimate blend of a Music Festival and a Fun Run. Experience a music filled course with Live DJs, Bubble Zones, Light Shows, Neon and Black Lights! Cross the finish line into an Epic Main Stage After Party featuring Top Headliner DJs! To date, over 1.5 MILLION people […]
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