Found 252 races

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JUL
4

Greeley, CO
• 45.8 miles
$35 -$45
Celebrate the Fourth of July with run.Windsor in Greeley, Colorado as we bring back the annual July 4th Freedom 5k walk and run, along the Greeley Stampede 4th of July Parade Route! Participants...
5K
70
JUL
4

Littleton, CO
• 22.1 miles
$45 -$65
Kick off your 4th of July with a family-friendly and festive 5K on Saturday, July 4, beginning at 7:30 a.m.! Celebrate Independence Day with a fun morning on the move — this spirited run/walk...
5K
34
JUL
4

Buena Vista, CO
• 67.4 miles
$30 -$35
Join us for the Independence Day 5K in Buena Vista, CO on July 4th, 2025!  
3K 5K
13
JUL
4

Louisville, CO
• 50.1 miles
$40 -$65
Let Freedom Run 5k/10k - Louisville in Louisville - 5K, 10K. Register today for this exciting race!
0m 5K 10K
235
JUL
4

Longmont, CO
• 40.2 miles
$40 -$55
Dress up as your favorite American Hero! This could be your mom, dad, Albert Einstein, Batman, Superman, or the Powerpuff girls! This event is all about celebrating GREAT people who do and have...
0m 5K
54
JUL
4

Saratoga, WY
• 86.1 miles
Celebrate Independence Day with our annual 4th of July 5K! Join friends, families, runners, and walkers for a fun-filled morning of patriotism, fitness, and community spirit. The course is open...
2m 5K
5
JUL
4

Saratoga, WY
• 86.1 miles
$15 -$35
Start your 4th off right with a 5K! Adults will be able to participate in a timed official 5K, with a kids "Fun Run" right after! Day of Registration begins at 6am. The race will start at 7am.
2m 5K
5
JUL
4

Red Feather Lakes, CO
• 11.9 miles
$40 -$50
Enjoy a scenic fun run in and around Red Feather Lakes, Colorado including a route through Fox Acres Golf Course! Start at and finish at The Tavern at Red Feather Lakes for an expo in the parking...
3m
44
JUL
4

Winter Park, CO
• 50.3 miles
$40
Continue your 4th of July celebration and join us in beautiful Winter Park, Colorado Unfiltered, for the Rendezvous Run for Independence 5k Run/Walk.  The 5K run/walk starts at  the Gondola Plaza...
5K
18
JUL
5

Clark, CO
• 71.0 miles
$40 -$50
Welcome to another year of epic fun, memories and vertical, with the Hahns Peak Hill Climb. This is an 8 mile out and back trail run that starts at the Quarry Lot (FS550 + HWY 129) north of Hahns...
8m
21
JUL
6

Boulder, CO
• 45.6 miles
Nestled 5,430 feet above sea level, Boulder, Colorado is renowned as the heart of the running world, home to Olympic athletes and elite runners alike. This summer, experience the ultimate...
16
JUL
6

Keystone, CO
• 73.2 miles
$1350
High altitude running camp for HS athletes
39
JUL
9

Boulder, CO
• 45.9 miles
$20
NO Race Day Registrations Fun for all, from newcomers of any age racing for the first time to veteran competitors looking to test their fitness, all in a friendly, welcoming environment. We are...
1m
9
JUL
10

Como, CO
• 92.3 miles
$80 -$385
The Human Potential Running Series Presents: The Silverheels Trail Runs @ COMO ROUNDHOUSE The Silverheels Trail Runs ...
60K 100K
73
JUL
11

Westminster, CO
• 57.9 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
173
JUL
11

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

Denver, CO
• 27.9 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
8
JUL
11

Littleton, CO
• 34.7 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

Cheyenne, WY
• 53.2 miles
$25
The 12th annual Will Run for Cannoli 5k is a family fun run/walk and will be held on July 11, 2026 at Lions Park in Cheyenne. Participants can expect a fun course, age division prizes, raffles, a...
5K
30
JUL
12

Lakewood, CO
• 26.1 miles
$10 -$15
Rocky Mountain Road Runners holds a monthly Trophy Series in the Denver area.  We provide a low-key, low-cost racing environment. Everyone is welcome to run with us! The race uses a handicap...
2m
29