Found 86 races

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JUL
19

Greeley, CO
• 18.0 miles
$25 -$40
Veteran suicide awareness 5k and 1 mile run benefiting NCVRC, with medal, shirt, and after party.
1m 5K
32
JUL
23

Boulder, CO
• 51.5 miles
$20
USATF-sanctioned all-comers summer track and field meet at CU Potts Field in Boulder, CO.
3K
21
JUL
24

Loveland, CO
• 42.9 miles
$25
Loveland, CO memorial 5K honoring Ryan Vomacka, supporting Mountain View High School running programs.
5K
24
AUG
4

Fort Collins, CO
• 2.3 miles
$30
Flat and fast 5K trail race at Lory State Park, part of the Lory Summer Trail Series.
5K
32
AUG
6

Boulder, CO
• 51.5 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. Held at...
1m
33
AUG
6

Eldorado Springs, CO
• 15.1 miles
$30
A scenic four-mile charity run through Eldorado Canyon benefiting the Colorado Cancer Foundation.
21
AUG
7

Fort Collins, CO
• 27.0 miles
$32 -$110
Mountain Avenue Mile and Human Race Half Marathon, 10K, and 5K at Civic Center Park.
5K 10K Half Marathon
35
AUG
8

Longmont, CO
• 47.5 miles
$20 -$45
A 3.5 mile race around Lake McIntosh in Longmont, CO on a half paved/half dirt course; dogs encouraged, benefits Longmont Humane Society.
22
AUG
8

Berthoud, CO
• 45.7 miles
$5 -$60
Inaugural Berthoud Gastro Dash 10K. Run Fast. Eat Faster.
10K
48
AUG
11

Bellvue, CO
• 0.0 miles
$30
Join us August 4, 11, 18 & 25 for a fun series of shorter midweek trail races. This fourth race of the series will take place on the fast and flat Valley Trail at Lory State Park. Our goal is to...
5K 10K 12K
31
AUG
15

Greeley, CO
• 25.0 miles
$25
The Frontier Academy Community 5K is meant to serve the community of Greeley and the surrounding area. Through this race we hope to fulfill the vision and mission of our school - 'Building...
5K
18
AUG
15

Longmont, CO
• 31.9 miles
$10 -$40
Family-oriented 5K and 1 Mile run/walk in Longmont, CO, raising funds for St. Vrain Valley Schools educator grants.
1m 5K
15
AUG
16

Erie, CO
• 96.7 miles
$45 -$85
5K road featuring competitive racing and community celebration
5K Half Marathon
159
AUG
18

Bellvue, CO
• 0.0 miles
$30
Hilly midweek 5k trail race at Lory State Park in the Lory Summer Trail Series.
5K
37
AUG
22

Fraser, CO
• 85.2 miles
$65 -$85
Push your limits with these stunning, remote races in the heart of the Rocky Mountains - located just 60 miles outsid...
5K Half Marathon
104
AUG
22

Louisville, CO
• 47.6 miles
$30
The Coyote Chase 5k is a 5k race that supports the Monarch HS XC program. The race is on the Monarch HS campus and is a 2k loop that consists of grass, dirt and concrete. The grass portion of the...
5K
7
AUG
22

Westminster, CO
• 45.3 miles
$45 -$55
A 28th-annual 5K supporting SLHS, with $15 of each fee going to a team of your choice.
5K
6
AUG
23

Westminster, CO
• 44.4 miles
$45 -$95
Welcome to the Pioneer Prairie Dog Half Marathon event; the one that started the series! With 10k and 5k events too!  Everyone is back to school and slipping into a routine.  Make this your...
5K 10K Half Marathon
399
AUG
25

Bellvue, CO
• 0.0 miles
$30
Join us August 4, 11, 18 & 25 for a fun series of shorter midweek trail races. This fourth race of the series will take place on the fast and flat Valley Trail at Lory State Park. Our goal is to...
12K
37
AUG
29

Allenspark, CO
• 35.1 miles
$20 -$55
Hello Runners and Dog Lovers! Welcome to the 14th annual Run Like The Wind 5k / 2k run in Allenspark on Labor Day weekend - Saturday, August 29th at 9am, hosted by the Old Gallery.  Register now...
2K 5K
22