Found 198 races near Colorado

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JUL
4

Tabernash, CO
• 86.4 miles
Devil's Thumb Ranch is happy to present the first annual 5K/15K running race and walk that will start at Devil’s Thumb Ranch Resort & Spa. The course consists of gentle rolling hills and moderate...
5K 15K
10
JUL
4

Castle Rock, CO
• 43.4 miles
$43 -$55
Please visit our official race website at www.runtochangelives.org for more registration options.
1K 5K Half Marathon
4
JUL
11

Denver, CO
• 76.8 miles
$33 -$40
Cookie Chase in Denver, CO - annual community running event featuring great community spirit and atmosphere
5K
40
JUL
11

Westminster, CO
• 16.7 miles
$35 -$85
Get ready for a sun-soaked adventure and a fantastic mid-season challenge with our 13th Annual Dog Days 5K, 10K & Half Marathon, benefiting Do Over Dogs! Held in a central location between Denver...
5K 10K Half Marathon
174
JUL
11

Crested Butte, CO
• 75.0 miles
$90 -$110
Historic race trail featuring competitive racing and community celebration
15K 25K
79
JUL
11

Littleton, CO
• 52.0 miles
$17 -$85
Join us for the Heatwave Half Marathon, 10K, & 5K!A sun-soaked summer challenge that’s perfect for the whole family. The fun includes – Great Swag – designer shirt & custom medalChip-timing with...
1m 5K 10K Half Marathon
47
JUL
11

Denver, CO
• 79.2 miles
$10 -$35
Move your way. Connect in community. Support health—body and mind. Join the Denver-Rocky Mountain Association of Black Psychologists for the DRMABPsi 1–5K Walk, Run & Roll, an inclusive,...
1K 2K 3K 4K 5K
9
JUL
16

Colorado Springs, CO
• 3.8 miles
$35
This 5K Run/Walk event is in conjunction with the 47th PNAA National Convention in Colorado Springs, CO. 5K Start and Finish Location: Colorado Springs, CO MAP INSERT Bib Pick-Up July 15th PNAA...
5K
27
JUL
18

Castle Rock, CO
• 47.0 miles
$40 -$95
Join runners in Castle Rock for this half marathon.
5K 10K Half Marathon
298
JUL
18

Steamboat Springs, CO
• 2.0 miles
$25 -$55
The race is held on the beautiful Spring Creek trail with wildflowers and Aspen trees next to bubbling Spring Creek. The 9.5 mile race is run on an up and down scenic loop on primitive trail, two...
5K 9m
30
JUL
18

Aspen, CO
• 72.5 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
49
JUL
18

Littleton, CO
• 67.6 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

Alma, CO
• 45.7 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

Denver, CO
• 77.0 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
• 108.7 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
8
JUL
18

Aurora, CO
• 81.7 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
4
JUL
19

Greeley, CO
• 124.6 miles
$20 -$40
This event raises essential funds to help veterans in our community who are experiencing challenges in their lives. As you complete the 5K course, you will receive a medal to commemorate your...
1m 5K
6
JUL
24

Loveland, CO
• 118.3 miles
$25
Join us for the 3rd annual Flyin' Ryan Memorial 5k , a heartfelt event dedicated to honoring the memory of Ryan Vomacka, an exceptional athlete and individual who left an indelible mark on our...
5K
13
JUL
25

Aurora, CO
• 80.2 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
18
JUL
25

Alamosa, CO
• 87.7 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
12