Event details subject to change. Please confirm all information via event website.

All Day

Sangre de Cristo Ultras

Music Meadows Ranch 6076 Co Rd 119, Westcliffe

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, […]

Ongoing

Red Feather Trail Jamboree

Ben Delatour Scout Ranch 2331 County Rd 68C, Red Feather Lakes

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.

$90 – $370

WILD Wahatoya Runs

Cuchara Mountain Park 1234 Panadero Ave, La Veta

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 […]

Crested Butte Ultra

Crested Butte Community School 818 Red Lady Ave., Crested Butte

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 […]

Cougar Ridge Classic 26K

Vail Village 292 E Meadow Dr, Vail

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 […]

West Line Winder 50K

Buena Vista Heritage Museum 506 E Main St, Buena Vista

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.

Monument Marathon

Featured
Five Rocks Amphitheater 200701 Co Rd P, Gering

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.

Get Your Rear In Gear 5K

Fossil Creek Park Lemay Avenue, Fort Collins

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 […]

$30.00

Black Canyon Triathlon

Montrose Community Recreation Center 16350 Woodgate Rd, Montrose

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 […]

Elevation Everest

Winter Park Resort 85 Parsenn Rd, Winter Park

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 […]

Desert’s Edge Triathlon

Highline Lake State Park 1800 11 8/10 Rd, Fruita

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

John Wayne True Grit Trail Half Marathon

Red Cliffs Lodge Mile Post 14 Hwy 128, Moab

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 […]

Night Nation Run

Dick's Sporting Goods Park 6000 Victory Way, Commerce City

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, […]

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