Found 109 races

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

JUN
4

Louisville, CO
• 56.4 miles
A 5K for our school, our kids, and our community. Join us for the Red Schoolhouse Run — a fundraiser 5K benefiting Jefferson Street School! From stroller-pushers to seasoned runners, this race is...
12
JUN
6

Berthoud, CO
• 42.5 miles
$35 -$45
The Berthoud Day 5K is a fun, family-friendly race that kicks off the Berthoud Day Parade with energy, connection, and hometown pride. Open to runners, walkers, families, strollers, and even...
5K
14
JUN
6

Johnstown, CO
• 35.4 miles
$30 -$40
5K in Johnstown with scenic views. Family-friendly event
1m 5K
189
JUN
6

Fort Collins, CO
• 39.9 miles
$50
This event brings together the community to support scholarships for anyone who identifies as a woman and is seeking treatment for drug and alcohol addiction. These funds bridge financial gaps...
5K
39
JUN
6

Granby, CO
• 89.6 miles
The Human Potential Running Series Presents: The Summits Trail Runs @ Granby Ranch Resort The Summits Trail Runs occu...
Half Marathon Marathon 50K
86
JUN
7

Louisville, CO
• 57.3 miles
The Colorado 13er is a unique race combining trail and road running on a scenic 13.1-mile loop course in Louisville. It is well-supported and accessible for runners of all levels, offering a mix...
5K 10K Half Marathon
43
JUN
11

Boulder, CO
• 38.8 miles
$15 -$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...
1m
16
JUN
13

Fort Lupton, CO
• 35.8 miles
DescriptionA certified 5k Race starts on South Harrison Avenue in front of the back parking lot. Start time 8:00am. Runners will take off first; Walkers immediately following. Packet Pick up at...
5K
24
JUN
13

Loveland, CO
• 11.1 miles
$85
Are you ready to test your limits and honor our heroes? Join us for the 5th Annual Health4Heroes Guardian Games, an electrifying Military and First Responder-inspired fitness competition like no...
15
JUN
13

Fort Collins, CO
• 1.6 miles
$25 -$40
Sam’s Rainbow Run: Honoring a Legacy of Love and Kindness I started Sam’s Rainbow Run as a way to honor Sam’s legacy and keep his spirit alive. Sam was passionate about helping those less...
5K
12
JUN
13

Cheyenne, WY
• 42.5 miles
$12
This is a four person relay race where each runner runs 1/2 mile around a course in the park.  Thus the entire race is 2 miles.  There will be three races dependent on the ability level of each...
20
JUN
13

Thornton, CO
• 34.6 miles
$17 -$85
Every Registration IncludesGreat Swag - designer shirtCustom medalChip-timing with live results and awardsFree photosGreat snacks at the finish line!Plenty of fun!Grab your friends and family,...
1m 5K 10K 15K
32
JUN
13

Broomfield, CO
• 39.5 miles
$35
Grab those tutus and come run with us to raise money for the Colorado Conservatory of Dance. This run/walk will be a party full of smile, music, and dancing! The 5K is a 3 loop course on a...
5K
22
JUN
20

Dacono, CO
• 21.2 miles
Muddy Dash is not your average mud run! Get ready for up to 3 Miles of messy mayhem. You and your friends/family can expect to run, walk, crawl, wade, slip, slide, and scream with excitement as...
55
JUN
20

Windsor, CO
• 36.7 miles
$15 -$130
Family-friendly fun in Windsor welcoming runners and walkers of all ages
1m 5K 10K Half Marathon
296
JUN
20

Loveland, CO
• 28.1 miles
$10 -$40
Thank YOU for supporting this wonderful cause.                                                                    Sierra's 5K Run/Walk entrees include:                                            ...
5K
29
JUN
20

Thornton, CO
• 26.6 miles
$24 -$61
5K road featuring competitive racing and community celebration
5K
205
JUN
21

Boulder, CO
• 7.4 miles
$25 -$30
IN-PERSON-SUNDAY, JUNE 21st START AND FINISH AT FRANKLIN FIELD, CU BOULDER CAMPUS REGISTRATION FEES: Individual: $30/Person Duo: $55/Group of 2 Family (Up to 5 Individuals): $110/Family The 14th...
5K
16
JUN
21

Boulder, CO
• 7.4 miles
$20 -$80
Join us on Sunday, June 21st, for the Sunset Trail Running Festival in Gold Hill, CO! Hosted by The Boulder Watershed Collective and in collaboration with T.E.A.M Boulder, all money raised from...
1K 5K 12K 28K
13
JUN
23

Louisville, CO
• 14.8 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,...
7