Found 241 races

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AUG
8

Longmont, CO
• 79.6 miles
$20 -$45
Come join us on August 8, 20226  for a race around the entirety of beautiful Lake McIntosh! This 3.5 mile race is a half paved/half dirt course surrounded by wonderful mountain views, vast...
10
AUG
8

Colorado Springs, CO
• 10.7 miles
$65 -$90
Join us and "Race for the horseshoe!" Starting August 8, 2026 we will be bringing back the historic Pony Express race. Now with a new annual race weekend, the second Saturday of August, we honor...
8m 16m
4
AUG
8

Woodland Park, CO
• 22.6 miles
$65 -$90
Join us and "Race for the horseshoe!" Starting August 8, 2026 we will be bringing back the historic Pony Express race. Now with a new annual race weekend, the second Saturday of August, we honor...
8m 16m
3
AUG
8

Thornton, CO
• 73.9 miles
$17 -$48
Join us for the annual Summer Sizzler 5k/10k/15k!  A fun summer event that is perfect for the whole family. The fun includes - Great Swag - designer shirt & custom medal Chip-timing with live...
1m 5K 10K 15K
286
AUG
9

Leadville, CO
• 90.8 miles
$65 -$80
Leadville Boom Days International Pack Burro RaceHauling Ass for Over 70 Years Step back into the grit and glory of the Old West at the legendary Leadville Boom Days International Pack Burro...
12
AUG
9

Littleton, CO
• 56.8 miles
$20 -$25
Work up an appetite for a deluxe breakfast at the Pancake Stampede 5K! The race is a part of Littleton's Western Welcome Week celebration, and is held before the annual pancake breakfast at...
5K
4
AUG
9

Lakewood, CO
• 64.6 miles
$25 -$50
                                               Run the Race. Stay for the Party. 
5K
3
AUG
15

Centennial, CO
• 54.1 miles
$30 -$45
🥯🏃‍♂️ Run for the carbs. Stay for the bagels.Love running? Love bagels? This one’s for you.Whether you’re chasing a workout or just here for the carbs, this run is all about balance, fun, and...
1m 5K 10K Half Marathon
27
AUG
15

Denver, CO
• 63.0 miles
Miles for Migraine will host its 6th annual 2-mile Walk, 5K Run and Relax Denver Event at Great Lawn Park. This event is a fundraiser for Migraine & Headache Awareness, Treatment & Research....
2m 5K
19
AUG
15

Longmont, CO
• 95.3 miles
$10 -$40
The Sunrise Stampede 5K and 1-Mile Fun Run/Walk is a community celebration that brings together neighbors, schools, students, families, educators, local businesses, and supporters from across St....
1m 5K
4
AUG
15

Colorado Springs, CO
• 9.3 miles
$45 -$115
The Cheyenne Mountain Run features three scenic trail races inside Cheyenne Mountain State Park: 25K Mountain Challenge – for advanced trail runners10K Trail Race – for experienced runners5K...
5K 10K 25K
130
AUG
16

Denver, CO
• 62.4 miles
$40 -$55
The 30th Annual Cancer League of Colorado Race 4 Research 5K Run/Walk is excited to be back to the full event you love Sunday, August 16, 2026, at Washington Park, Denver! Run In-Person The race...
5K
AUG
16

Erie, CO
• 87.2 miles
$45 -$85
5K road featuring competitive racing and community celebration
5K Half Marathon
129
AUG
16

USAF Academy, CO
• 16.7 miles
$20 -$24
Looking to run the fastest mile of your life? Dropping over 220 feet from start to finish, the Flying Falcon Downhill Mile is designed to help you chase a massive personal best while experiencing...
2
AUG
22

Centennial, CO
• 71.3 miles
$39
Our annual 5K/10K Run or Walk to Support Susie's Higher-Ed Fund   We'll be returning to Family Worship Center for the start and finish of this year's 5K/10K.  Our event will take place on August...
5K 10K
12
AUG
22

Evergreen, CO
• 79.1 miles
DescriptionCome run with us in beautiful Evergreen to the top of Bergen Peak at gorgeous Elk Meadow Park!This race day will offer a 5k distance race through the lower sections of Elk Meadow...
5K
10
AUG
22

Evergreen, CO
• 79.1 miles
DescriptionCome run with us in beautiful Evergreen to the top of Bergen Peak at gorgeous Elk Meadow Park!This race day will offer a Half Marathon distance. The Half Marathon will take you to the...
Half Marathon Marathon
23
AUG
22

Fraser, CO
• 87.9 miles
$60 -$85
Push your limits with these stunning, remote races in the heart of the Rocky Mountains - located just 60 miles outsid...
5K Half Marathon
83
AUG
22

Westminster, CO
• 56.2 miles
$45 -$55
Now in its 28th year, the Jog in the Bog 5K is a fun opportunity to get active while supporting SLHS.    Registration includes a commemorative t-shirt, goodie bag, entry into prize drawing, and...
5K
AUG
22

Denver, CO
• 63.4 miles
$20 -$40
Run in Denver, CO with t-shirt
1m 5K
32