Found 212 races

🎉 Join Your Local Running Community!

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

JUL
18

Denver, CO
• 90.6 miles
$35
Join OCA Colorado for the annual 5K Panda Run & 1K Walk, a fun-filled community event with a powerful purpose: helping local Asian Pacific American (APA) students pursue higher education right...
1K 5K
6
JUL
18

Manassa, CO
• 93.5 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
8
JUL
18

Aspen, CO
• 87.3 miles
$115 -$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
48
JUL
18

Aurora, CO
• 94.1 miles
$7 -$20
Please join the CU Anschutz Run Club on July 18, 2026 for an on-campus 5k celebrating the outdoors and the CU Anschutz community! We are also raising money for DAWN, CU Anschutz's free clinic.
5K
3
JUL
18

Alma, CO
• 64.0 miles
$10 -$30
Start your morning the Alma way — with a little fresh mountain air, some movement, and a big stack of pancakes. Join us for the Firefighter 5K, a laid-back community run where everyone is...
5K
27
JUL
18

Littleton, CO
• 80.6 miles
$30 -$40
Run for the Eagles!Support the Heritage Eagles Cross Country Team at the 9th Annual Heritage Eagles 5K!Last year’s event raised over $3,500 for the team, and with $10 from each registration going...
5K
19
JUL
18

Castle Rock, CO
• 71.8 miles
$40 -$95
Join runners in Castle Rock for this half marathon.
5K 10K Half Marathon
292
JUL
18

Buena Vista, CO
• 42.5 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...
11
JUL
19

Manitou Springs, CO
• 39.4 miles
$90 -$500
  The Barr Trail Mountain Race is one of the Front Range’s historic summer mountain running events. The 12.6-mile course begins at the Cog Railway Station (6,570 ft) in Manitou Springs, Colorado,...
45
JUL
25

Alamosa, CO
• 72.7 miles
$18 -$25
5K run/walk hosted by the loved ones of Diana Cantu.  Remembering our mother, Diana Cantu, and honoring her legacy. She bravely fought this disease as the resilent person that she was.  The Cantu...
5K
11
JUL
25

Aspen, CO
• 87.4 miles
$80 -$260
http://www.aspenvalleymarathon.com
Half Marathon Marathon
41
JUL
25

Salida, CO
• 28.1 miles
$25 -$40
The National High School Trail Championship (NHSTC) is a 5.4 mile trail race for high school athletes and includes 2026 high school graduates and incoming freshmen. The fourth running of the...
4
JUL
25

Pueblo, CO
• 47.0 miles
$50
Want to start running but don’t know where to start? Want to get back into running and need a plan? The Southern Colorado Runners are hosting an 8-week training clinic designed to help you...
5K
10
JUL
25

Pine, CO
• 70.6 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
14
JUL
25

Pine, CO
• 70.6 miles
DescriptionCome run with us in amazing Staunton State Park!This race day will offer a 5k distance.Play fun games from our rec trailer, visit our sponsors and vendor tents while you wait for your...
5K
11
JUL
25

Aurora, CO
• 92.2 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
17
JUL
26

Golden, CO
• 87.5 miles
$30 -$40
Spirit of the West 5K Run/Walk in Golden, CO - community 5K race featuring great community spirit and atmosphere
5K
135
AUG
1

Aurora, CO
• 93.9 miles
$12 -$47
Join Us for the 12th Annual Run for the Ring 5K & Kids Fun Run! Over the past 12 years, the Run for the Ring 5K & Kids Fun Run has brought together Barbara Davis Center patients, loyal type 1...
5K
11
AUG
1

Denver, CO
• 94.3 miles
Whether you’re a seasoned runner or just love to walk and take in the scenery, SKECHERS Wicked Wine Run is for you! Each course will be held on beautiful properties or various partner vineyards...
1K 5K
18
AUG
1

Parker, CO
• 83.2 miles
$25
RunAbilities FUN Walk/Run/Roll Join Parker Recreation and Square Peg Therapies for our annual RunAbilities FUN Walk/Run/Roll! Now in its fourth year, RunAbilities FUN Walk/Run/Roll is a...
2m
2