Found 33 races

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JUL
18

Aspen, CO
• 95.2 miles
$125 -$145
The Audi Power of Four Trail Run offers runners a scenic mix of trails across the mountains of Aspen Snowmass. Registrants can choose between the 3 distances offered including 50K, 25K & 10K.  
10K 25K 50K
63
JUL
23

Durango, CO
• 81.3 miles
$30 -$75
Three-race Durango summer trail series partnered with local breweries; July 2 kickoff at Horse Gulch.
24
JUL
25

Aspen, CO
• 95.2 miles
$100 -$260
http://www.aspenvalleymarathon.com
Half Marathon Marathon
59
JUL
25

Crested Butte, CO
• 78.6 miles
$50
The 27th annual community cancer-support hike at Crested Butte Mountain Resort, with full and shorter route options.
15
JUL
27

Telluride, CO
• 41.4 miles
Banished by the ferocious tiger, Shere Khan, a human boy named Mowgli and his panther friend, Bagheera, are on the run in the deepest parts of the jungle. On their journey, the two meet a...
45
AUG
1

Dolores, CO
• 65.8 miles
Mountain bike race on the Boggy Draw singletrack near Dolores, CO, with 33, 18, and 15-mile courses for charity.
3m 15m 18m 33m
26
AUG
1

Creede, CO
• 93.5 miles
$25
An out and back 5K Run for all abilities in the beautiful setting of Creede, Colorado. Numerous age group prizes for both runners and walkers. Long sleeved tech tshirt for all participants....
5K
15
AUG
8

Durango, CO
• 80.5 miles
$30
Please join La Plata County 4-H for the inaugural 5K at the Fair! The race will be on August 8 at 8:30 AM at the La Plata County Fairgrounds in Durango, 2500 Main Ave. Check in starts at 8 AM. We...
5K
1
AUG
8

Dolores, CO
• 65.9 miles
$30 -$40
The fifth annual Escalante Days 5K Run will be held on Saturday August 9, 2025 at Flanders Park in Dolores. All proceeds support the Dolores Middle and High School Cross Country programs. Start...
5K
14
AUG
15

Montrose, CO
• 21.9 miles
$40 -$50
Join us for the annual Colorado West Christian School 5K Color Fun Run—a fun, family-friendly race along the scenic river trail at Riverbottom Park in Montrose, Colorado. Run or walk through...
5K
25
AUG
22

Grand Junction, CO
• 19.6 miles
$20
Warrior Waterfront 5K - You can pick up your race bibs on the morning of the race between 8:00-9:00am at the shelter at Las Colonias Park (1461 Riverfront Dr.). Come join us for the 2nd Warrior...
5K
12
AUG
23

Ridgway, CO
• 40.3 miles
$40 -$45
Scenic 5K & 10K fun run/walk on paved roads in Ridgway, CO funding local scholarships.
5K 10K
52
AUG
29

Durango, CO
• 83.9 miles
$105 -$149
Half marathon road with challenging terrain and post-race festivities
Half Marathon
104
SEP
12

Telluride, CO
• 42.5 miles
$130 -$175
53rd Annual Imogene Pass Run, a difficult mountain race for well-prepared athletes, Sept 12, 2026.
53
SEP
12

Grand Junction, CO
• 159.9 miles
$10 -$45
Spirit in Grand Junction, CO - t-shirt, run or walk
1K 3m 5K
133
SEP
12

Loma, CO
• 68.0 miles
$50
A fresh take on trail running that ditches the big-budget hype for pure, no frills adventure. Forget the lottery entries, $200+ fees, swag bags, and finish line blow up arches. This is trail...
31
SEP
25

Dolores, CO
• 65.9 miles
Boggy Draw Bear Chase   Site:  Boggy Draw, Dolores, CODirections: Boggy Draw Google Maps From HWY 145, turn onto 11th St. (at Basecamp gas station), continue up Dunlap Hill (overlooking Dolores...
23
SEP
26

Pagosa Springs, CO
• 104.9 miles
Pagosa Springs High School would like to invite you to participate in our MS and HS XC meet on Saturday, September 27th, 2025. This year, we will be hosting the meet at our traditional location...
31
SEP
26

Fruita, CO
• 45.5 miles
$25 -$35
MESA COUNTY SEARCH & RESCUE 5K RACE, September 26th 2026, in conjunction with Fruita Fall Festival SUPPORT OUR MISSION TO RESCUE AND SAVE LIVES   COST: EARLY REGISTATION By SEP 6th: 13 and under:...
5K
21
SEP
26

Durango, CO
• 81.4 miles
$90 -$100
Have you ever stood at the bottom of a mountain, staring up at the top, thinking to yourself: “I wonder if I could run all the way up there?” Well, now you’re going to find out! The Mountain...
27