Ute 100

Masons Draw Campground Forest Rd 4821, Moab, UT, United States

The Ute 100 is the highest and most scenic race in Utah, taking runners on a breathtaking tour of the La Sal Mountains, Utah's second highest mountain range. The 100 mile course has an average elevation over 8,700 ft and boasts roughly 23,000 ft gain.

Continental Divide Trail Run

Steamboat Springs Ski Resort 2305 Mt Werner Cir, Steamboat Springs, CO, United States

Distances: 50k (9 hour cutoff) and 16 mile (7 hour cutoff) and 5 mile (New!)

Westminster Trail Race

Wayne Carle Middle School 10020 100th Ave, Westminster, CO, United States

Join us at beautiful Standley Lake in Westminster as we race around the lake. The 12th Annual event is a great course for those competitive, intermediate, or novice runners. The trails are mix of packed dirt trails, single track, and some minimal bike path. Oh...and don't forget about the views! Runners will be surrounded with […]

Boulder Sunset Triathlon

Boulder Reservoir 5565 N 51st St, Boulder, CO, United States

Summer may be coming to an end, but our tri season is still heating up! Join us at the Boulder Reservoir for the 13th Annual Boulder Sunset Triathlon, a local favorite. For the 5th year in a row we are the proud host of the Mountain Collegiate Conference race and the USAT Duathlon Race Series. […]

Staunton Rocks! Trail Marathon

Staunton State Park 12102 S Elk Creek Rd, Pine, CO, United States

Welcome to the Staunton Rocks! Marathon & Half Marathon, an event put on by trail runners for trail runners on August 28, 2021. Touring the renowned singletrack of Staunton State Park in Colorado’s Front Range Mountains southwest of Denver, the race will take you back in time as you glide by historic buildings and old milling operations.

$80 – $120

Frontier Academy Community 5K

Twin Rivers Park 1501 65th Avenue, Greeley, CO, United States

The Frontier Academy Community 5K is meant to serve the community of Greeley and the surrounding area. Through this race we hope to fulfill the vision and mission of our school - 'Building Leaders'.

$15 – $30

Boulder Sunset 5K/10K

Boulder Reservoir 5565 N 51st St, Boulder, CO, United States

The Boulder Sunset 10K & 5K Run is part of BBSC’s biggest endurance event of the summer. Spend your weekend racing with BBSC at the incredible and scenic Boulder Reservoir. Register, and start training for the end-of-the-summer endurance festival with BBSC.

Byers Peak Stampede

High Country Stampede Rodeo 1741 Co Hwy 73, Winter Park, CO, United States

Put your mind and body to the test while enjoying the beautiful Rocky Mountain views! Join us this summer for the 11th Annual 2021 Winter Park Half Marathon and 5K. This event is the perfect combination of challenge and scenery! Both the Half Marathon and 5K will start and finish at High Country Stampede Rodeo […]

$5 – $70

Thirsty 13 Half Marahton

Ska Brewing Durango, CO, United States

It's a race.  It's a Brewfest.  It's the Thirsty 13 Half Marathon! Are you thirsty for gorgeous scenery?  You won't find a course more beautiful than this one.  With the majestic La Plata mountains in the background, you'll cruise through the lush pastures of Wildcat Canyon and past the pristine waters of Lake Nighthorse.  This […]

Rio Grande 100

Brown Memorial Park 86 County Road 15, South Fork, CO, United States

The Rio Grande 100 starts and finishes on the banks of the mighty Rio Grande River in beautiful South Fork, Colorado. The race takes you though the amazing La Garita mountains, from arid forest to alpine tundra peaking out over 12,000 foot above sea level 4 times. You will enjoy golden aspen leaf covered trails […]

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