Clear All
50k Runs Near Colorado
Showing the next 50 runs that match your filters
Featured
Samson's Revenge Trail Race
Mostly fast single track course!
Date: May 23, 2026 - Saturday
Size: 100 - 500 participants
Location: Estes Park, Colorado
Desert Rats Trail Running Festival by UTMB
Date: Apr 11-12, 2026 - Saturday to Sunday
Size: 500 - 1,000 participants
Location: Fruita, Colorado
West Texas Ultra
Date: Apr 17-18, 2026 - Friday to Saturday
Size: 100 - 500 participants
Location: Fritch, Texas
Rattler Trail Race
Date: Apr 18, 2026 - Saturday
Size: 100 - 500 participants
Location: Colorado Springs, Colorado
Are you organizing a running event?
Cedro Peak Ultra Marathon & Half Marathon
Date: Apr 18, 2026 - Saturday
Size: 100 - 500 participants
Location: Albuquerque, New Mexico
Thelma and Louise Marathon, Half Marathon and 15K
Date: Apr 25, 2026 - Saturday
Size: 100 - 500 participants
Location: Moab, Utah
Royal Gorge Groove
Date: Apr 25, 2026 - Saturday
Size: 100 - 500 participants
Location: Cañon City, Colorado
Greenland Trail Races
Date: May 2, 2026 - Saturday
Size: 500 - 1,000 participants
Location: Palmer Lake, Colorado
Jemez Mountain Trail Runs
Date: May 9, 2026 - Saturday
Size: 100 - 500 participants
Location: Los Alamos, New Mexico
Valkyrie Trail Race
Date: May 9, 2026 - Saturday
Size: 100 - 500 participants
Location: Colorado Springs, Colorado
Ram Party Trail Runs
Date: May 16, 2026 - Saturday
Size: 100 - 500 participants
Location: Colorado Springs, Colorado
Colorado Springs Spartan Weekend
Date: May 30-31, 2026 - Saturday to Sunday
Size: 500 - 1,000 participants
Location: Colorado Springs, Colorado
North Fork Trail Race
Date: May 30, 2026 - Saturday
Size: 100 - 500 participants
Location: Pine, Colorado
Great Divide Ultra
Date: Jun 6-7, 2026 - Saturday to Sunday
Size: 100 - 500 participants
Location: Teller County, Colorado
Sinks Canyon Rough and Tumble Trail Runs
Date: Jun 13, 2026 - Saturday
Size: 100 - 500 participants
Location: Lander, Wyoming
Barr Lake Trail Race
Date: Jun 13, 2026 - Saturday
Size: 100 - 500 participants
Location: Commerce City, Colorado
Ring the Springs
Date: Jun 20, 2026 - Saturday
Size: 100 - 500 participants
Location: Colorado Springs, Colorado
Bears Ears Ultra
Date: Jun 20, 2026 - Saturday
Size: 100 - 500 participants
Location: San Juan County, Utah
Chase the Moon 12 Hour Endurance Run
Date: Jun 27, 2026 - Saturday
Size: 500 - 1,000 participants
Location: Highlands Ranch, Colorado
Silverton Alpine Runs
Date: Jul 18, 2026 - Saturday
Size: 100 - 500 participants
Location: Silverton, Colorado
Pikes Peak Ultra
Date: Jul 25, 2026 - Saturday
Size: 100 - 500 participants
Location: Colorado Springs, Colorado
Sheep Mountain Ultras
Date: Aug 1, 2026 - Saturday
Size: 100 - 500 participants
Location: Fairplay, Colorado
Aspen Backcountry
Date: Aug 1, 2026 - Saturday
Size: 100 - 500 participants
Location: Aspen, Colorado
Continental Divide Trail Run
Date: Aug 23, 2026 - Sunday
Size: 100 - 500 participants
Location: Steamboat Springs, Colorado
Rock Hawk Trail Races
Date: Aug 29, 2026 - Saturday
Size: 500 - 1,000 participants
Location: Castle Rock, Colorado
Devil on the Divide
Date: Sep 12, 2026 - Saturday
Size: 100 - 500 participants
Location: Idaho Springs, Colorado
Snow Mtn Ranch Trail Festival
Date: Sep 12, 2026 - Saturday
Size: 100 - 500 participants
Location: Grand County, Colorado
Snow Mountain Ranch Trail Running Festival
Date: Sep 12, 2026 - Saturday
Size: 100 - 500 participants
Location: Grand Lake, Colorado
Jelm Mountain Run
Date: Sep, 2026 (TBD)
Size: 1 - 100 participants
Location: Albany County, Wyoming
Ruidoso Runfest
Date: Sep 18-19, 2026 - Friday to Saturday
Size: 500 - 1,000 participants
Location: Ruidoso, New Mexico
Red Feather Trail Jamboree
Date: Sep 25-27, 2026 - Friday to Sunday
Size: 100 - 500 participants
Location: Goodell Corner, Colorado
West Line Winder 50k
Date: Sep 26, 2026 - Saturday
Size: 100 - 500 participants
Location: Buena Vista, Colorado
Sangre de Cristo Ultras
Date: Sep 26-27, 2026 - Saturday to Sunday
Size: 100 - 500 participants
Location: Westcliffe, Colorado
Wild Wahatoya Runs
Get 10% Off - Use Code RUNGUIDE10
Date: Sep 26, 2026 - Saturday
Size: 100 - 500 participants
Location: La Veta, Colorado
Sawatch Ascent 50k
Date: Sep 27, 2026 - Sunday
Size: 100 - 500 participants
Location: Nathrop, Colorado
Race The Ranch Snowshoe Ultra
Date: Sep 27, 2026 - Sunday
Size: 1 - 100 participants
Location: Granby, Colorado
Mainly Marathons Center of the Nation Series - Day 1
Date: Sep 28, 2026 - Monday
Size: 1 - 100 participants
Location: Cheyenne, Wyoming
Mainly Marathons Center of the Nation Series - Day 2
Date: Sep 29, 2026 - Tuesday
Size: 1 - 100 participants
Location: Sterling, Colorado
Mainly Marathons Center of the Nation Series - Day 3
Date: Sep 30, 2026 - Wednesday
Size: 1 - 100 participants
Location: Chadron, Nebraska
Mainly Marathons Center of the Nation Series - Day 4
Date: Oct 1, 2026 - Thursday
Size: 1 - 100 participants
Location: Belle Fourche, South Dakota
Arches Marathon and Half
Date: Oct 3, 2026 - Saturday
Size: 100 - 500 participants
Location: Moab, Utah
Sage Burner Trail Races
Date: Oct 3, 2026 - Saturday
Size: 100 - 500 participants
Location: Gunnison, Colorado
Above the Clouds Ultra
Date: Oct 3, 2026 - Saturday
Size: 100 - 500 participants
Location: Woodland Park, Colorado
The Bear Chase Trail Races
Date: Oct 3-4, 2026 - Saturday to Sunday
Size: 100 - 500 participants
Location: Lakewood, Colorado
Cactus to Cloud Sky Runs
Date: Oct 17, 2026 - Saturday
Size: 100 - 500 participants
Location: Boles Acres, New Mexico
Bobcat Trail Race
Date: Oct 17, 2026 - Saturday
Size: 100 - 500 participants
Location: Colorado Springs, Colorado
Day of the Dead Series
Date: Oct 24-25, 2026 - Saturday to Sunday
Size: 100 - 500 participants
Location: Las Cruces, New Mexico
Bridge Burner Ultra
Date: Oct 24, 2026 - Saturday
Size: 100 - 500 participants
Location: Duncan, Colorado
Day of the Dead - Day 1 & Day 2
Date: Oct 24-25, 2026 - Saturday to Sunday
Size: 100 - 500 participants
Location: Las Cruces, New Mexico
Mainly Marathons Southwest Series - Day 1
Date: Nov 8, 2026 - Sunday
Size: 1 - 100 participants
Location: Farmington, New Mexico
Mainly Marathons Southwest Series - Day 2
Date: Nov 9, 2026 - Monday
Size: 1 - 100 participants
Location: Durango, Colorado
