Found 183 races

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Connect with runners, find training partners, and celebrate every finish together

JUL
15

Commerce City, CO
• 30.3 miles
DescriptionSpend time in the original home of the Arapaho, Cheyenne, Lakota, and Ute people of Colorado. Emphasizing the history, cultural practices, and stewardship of indigenous people, a Park...
12
JUL
16

Colorado Springs, CO
• 87.5 miles
$35
A 5K wellness fundraiser in Colorado Springs benefiting the Philippine Nurses Association of America Foundation.
5K
41
JUL
18

Denver, CO
• 25.7 miles
$35
Join OCA Colorado for the annual 5K Panda Run & 1K Fun Walk, a fun-filled community event with a powerful purpose: helping local students pursue higher education right here in the Denver area,...
1K 5K
26
JUL
18

Manassa, CO
• 92.7 miles
$20
Come join 500 of your running friends for southern Colorado's oldest and one the region's largest road races. This 5K starts and ends near Jack Dempsey Park. After the race, stick around for the...
5K
24
JUL
18

Aspen, CO
• 40.0 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
18

Aurora, CO
• 26.8 miles
$7
On-campus 5K hosted by the CU Anschutz Run Club, raising money for DAWN, the free clinic.
5K
20
JUL
18

Alma, CO
• 41.0 miles
$10 -$30
Laid-back community Firefighter 5K and Doggie Dash in Alma, CO with a pancake breakfast.
5K
37
JUL
18

Littleton, CO
• 13.6 miles
$40
The 9th Annual Heritage Eagles 5K on the Liberty Bell course benefits the Heritage HS Cross Country Team.
5K
83
JUL
18

Castle Rock, CO
• 20.1 miles
$45 -$95
Join runners in Castle Rock for this half marathon.
5K 10K Half Marathon
336
JUL
18

Buena Vista, CO
• 77.1 miles
TransRockies Charity Bibs We are so excited to collaborate with TransRockies to offer charity bibs to this inspiring community! Join us on this 3-day running adventure through the Rockies and do...
31
JUL
19

Manitou Springs, CO
• 18.4 miles
$100
Historic 12.6-mile Pikes Peak mountain race up Barr Trail to Barr Camp.
100
JUL
25

Alamosa, CO
• 52.0 miles
$18 -$25
Memorial 5K fun run/walk in Alamosa, CO supporting families fighting pancreatic cancer.
5K
17
JUL
25

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

Salida, CO
• 72.8 miles
$35 -$40
A 5.4-mile trail race on Salida, Colorado's S Mountain, open to all ages plus high school championships.
17
JUL
25

Crested Butte, CO
• 44.5 miles
$50
The 27th annual community cancer-support hike at Crested Butte Mountain Resort, with full and shorter route options.
15
JUL
25

Pueblo, CO
• 38.8 miles
$50
8-week Galloway run/walk/run training clinic by Southern Colorado Runners in Pueblo, CO.
5K
111
JUL
25

Pine, CO
• 51.5 miles
DescriptionCome run with us in amazing Staunton State Park!This race day will offer a 10 mile distance.Play fun games from our rec trailer, visit our sponsors and vendor tents while you wait for...
10m
44
JUL
25

Aurora, CO
• 24.7 miles
$10 -$45
The 7/20 Foundation is proud to present the 5th annual Hero’s Journey 5k Run/Walk. This race makes its way through Aurora's City Center and the High Line canal trail with a start and finish in...
5K
39
JUL
26

Pueblo, CO
• 37.2 miles
$25
The SIC Mile The SIC Mile is 4 times around the track. You can team up with up to 4 people, but everyone must take a turn on each lap — meaning someone can run a few steps, then tag their partner...
2m
8
AUG
1

Aurora, CO
• 15.8 miles
$15 -$47
Professionally timed 5K Run/Walk & Kids Fun Run at the Barbara Davis Center, benefiting the Children's Diabetes Foundation.
5K
25