Found 114 races near Windsor, CO

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JUN
23

Louisville, CO
• 25.9 miles
$30
A 5K (ish) for our school, our kids, and our community. Join us for The Red Schoolhouse Run — a fundraiser run benefiting Jefferson Street Preschool! From stroller-pushers to seasoned runners,...
9
JUN
25

Boulder, CO
• 30.1 miles
$20
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 back at CU Pott’s Field on...
15
JUN
27

Arvada, CO
• 21.9 miles
$20
Free fun run 5k, yoga, and beer mile at a fitness expo in Arvada, CO
5K
23
JUN
27

Boulder, CO
• 31.9 miles
$25 -$45
The 29th Downtown Boulder Pearl Street Mile, a night of 1-Mile criterium races on the Pearl Street Mall.
21
JUN
27

Bellvue Colorado
• 30.5 miles
A scenic trail race at Lory State Park near Fort Collins, CO with 5K, 5 mile, and 10 mile distances.
5K 5m 10m
35
JUL
4

Arvada, CO
• 60.9 miles
$5 -$6
Novelty mile at Colorado Tap House, Arvada: eat 10 donut holes across four quarter-mile loops.
9
JUL
4

Boulder, CO
• 32.6 miles
$40 -$45
17th annual flat-and-fast 4K fun run in Boulder with a post-race party.
4K
10
JUL
4

Tabernash, CO
• 47.6 miles
First annual 5K/15K run and walk at Devil's Thumb Ranch, Tabernash, CO on July 4.
5K 15K
13
JUL
4

Fort Collins, CO
• 58.5 miles
$10 -$55
Friday July 4th, 2026 Walk ⭐️ Jog ⭐️ Run ⭐️ Race Kick off your holiday festivities with a 5k in City Park, Fort Collins Start your Fourth of July with movement, community, and celebration at the...
5K
40
JUL
4

Greeley, CO
• 29.9 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
73
JUL
4

Louisville, CO
• 7.7 miles
$45 -$65
Let Freedom Run 5k/10k - Louisville in Louisville - 5K, 10K. Register today for this exciting race!
0m 5K 10K
240
JUL
4

Longmont, CO
• 38.5 miles
$45 -$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
57
JUL
4

Red Feather Lakes, CO
• 24.9 miles
$50
A 3.6-mile fun run around Red Feather Golf Course ending at The Tavern with a beer.
3m
49
JUL
4

Winter Park, CO
• 58.6 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
20
JUL
6

Boulder, CO
• 42.9 miles
A high-altitude day camp in Boulder for grades 6-12 to train with NCAA and elite runners.
20
JUL
9

Boulder, CO
• 42.8 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
13
JUL
11

Westminster, CO
• 45.1 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
179
JUL
11

Cheyenne, WY
• 40.8 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
35
JUL
19

Greeley, CO
• 25.1 miles
$20 -$40
Veteran suicide awareness 5k and 1 mile run benefiting NCVRC, with medal, shirt, and after party.
1m 5K
10
JUL
23

Boulder, CO
• 42.8 miles
$20
USATF-sanctioned all-comers summer track and field meet at CU Potts Field in Boulder, CO.
13