Found 25 races

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JUL
18

Aspen, CO
• 98.9 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
25

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

Crested Butte, CO
• 118.1 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
• 72.2 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

Creede, CO
• 102.2 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
15

Montrose, CO
• 55.6 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
• 63.7 miles
$40 -$45
Scenic 5K & 10K fun run/walk on paved roads in Ridgway, CO funding local scholarships.
5K 10K
52
SEP
7

Oak Creek, CO
• 47.1 miles
$25
The Running Series is excited to have the Oak Creek No Fun Run on our schedule again! Please join us in remembering long-time Running Series competitor Larry Brooks, a former organizer of the Oak...
5K
50
SEP
12

Telluride, CO
• 69.5 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
• 20.9 miles
$10 -$45
Spirit in Grand Junction, CO - t-shirt, run or walk
1K 3m 5K
133
SEP
12

Loma, CO
• 39.6 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
26

Fruita, CO
• 31.5 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

Oak Creek, CO
• 46.2 miles
$20 -$25
A flat 5K fun run overlooking Stagecoach State Park Reservoir with flapjack breakfast.
5K
15
SEP
27

Grand Junction, CO
• 20.7 miles
$35
Grand Valley Brew Runs is a series of holiday themed 5k run/walks in the valley. Come run from our local partner locations and finish with a brew or hot chocolate, games, music, and more. Kids 12...
5K
6
OCT
4

Aspen, CO
• 32.4 miles
$60 -$65
Halloween-themed dog-friendly 5.6K run/1 mile walk benefiting the Aspen Animal Shelter at Koch Park.
1m
69
OCT
10

Grand Junction, CO
• 19.7 miles
$30 -$40
Family-friendly 5K raising kidney disease awareness and supporting local dialysis patients.
5K
34
OCT
17

Fruita, CO
• 32.1 miles
$45 -$160
The Great Pumpkin Haul is a 2 mile jaunt through forests, open fields, hay bales, and through the scenic Moon Farm.  There is a catch though:  you will be covering these two miles carrying your...
11
OCT
18

Glenwood Springs, CO
• 37.0 miles
$30 -$40
Family-friendly 5.5K and 1.5K Halloween charity run/walk in Glenwood Springs.
1K 5K
16
OCT
31

Grand Junction, CO
• 17.3 miles
This is a community fun event. Put on by Pear Park Elementary School. All proceeds will help fund outdoor programs at the school as well as help the Phyisical Education program.Event details and...
5K
27