Found 160 races near Adams County, 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
27

Littleton, CO
• 37.6 miles
$45
Community 5K run/walk at Robert F. Clement Park before the fourth of July.
5K
37
JUN
27

Denver, CO
• 33.1 miles
$50 -$60
The Denver Pride 5K is more than just a race—it's a powerful way for supporters of The Center on Colfax to make a difference in the lives of Colorado’s LGBTQ+ community. This event serves as a...
5K
16
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
28

Littleton, CO
• 0.0 miles
$10 -$25
Community 1.5-mile run/walk in Littleton, CO raising concussion and CTE awareness.
9
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

Castle Rock, CO
• 45.3 miles
$43 -$55
Please visit our official race website at www.runtochangelives.org for more registration options.
1K 5K Half Marathon
10
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

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

Littleton, CO
• 43.0 miles
$55 -$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
37
JUL
4

Buena Vista, CO
• 58.3 miles
$30 -$35
Join us for the Independence Day 5K in Buena Vista, CO on July 4th, 2025!  
3K 5K
16
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
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

Denver, CO
• 3.2 miles
$36 -$40
Cookie Chase in Denver, CO - annual community running event featuring great community spirit and atmosphere
5K
44
JUL
11

Denver, CO
• 55.3 miles
An inclusive 1-5K walk, run & roll in Denver hosted by the Assoc. of Black Psychologists.
1K 2K 3K 4K 5K
11
JUL
11

Littleton, CO
• 31.2 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
49
JUL
12

Lakewood, CO
• 57.4 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
39
JUL
18

Denver, CO
• 60.1 miles
$35
Join OCA Colorado for the annual 5K Panda Run & 1K Walk, a fun-filled community event with a powerful purpose: helping local students pursue higher education right here in the Denver area,...
1K 5K
7