Found 110 races

🎉 Join Your Local Running Community!

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

OCT
3

Broomfield, CO
• 38.9 miles
$15 -$55
Prospect Ridge Academy is thrilled to present our 16th Annual Miner Gold Rush and Fall Festival! All proceeds will benefit Prospect Ridge Academy, a public charter school providing a rigorous,...
1m 5K
6
OCT
3

Loveland, Colorado
• 10.9 miles
Experience the ultimate Colorado adventure at Boyd Lake State Park! This event pairs you and your dog for a scenic run filled with fun, beginner-friendly obstacles. It’s all about local vibes,...
2m
1
15
OCT
10

Fort Collins, CO
• 1.4 miles
$35 -$120
Join us on a journey from Fort Collins to Loveland. The marathon begins at Edora Park in Fort Collins and ends at Fairgrounds Park in Loveland. The half-marathon starts at Fossil Creek Park and...
5K Half Marathon Marathon
52
OCT
11

Fort Collins, CO
• 2.8 miles
This fun run is held on national coming out day this out and back Greenway 5K is here to celebrate everyone and anyone! There will be an unofficial clock and a mini award ceremony after. this is...
5K
OCT
11

Westminster, CO
• 46.0 miles
$45 -$85
Join the WESTY HALF and 5k this fall! The Hometown Race Series features half marathons and 5k distance events in outlying communities outside the Denver and Boulder metro areas.  Whatever...
5K Half Marathon
86
OCT
17

Fort Collins, CO
• 3.3 miles
$100 -$130
Welcome to the Blue Sky Trail Marathon & Half, Fort Collins's original and only trail marathon. Taking place on the trails between Horsetooth Mountain Park and the Devil's Backbone Open Space,...
Half Marathon Marathon
OCT
31

Thornton, CO
• 47.4 miles
$40 -$60
Dress up and run spooky and silly at the I Ain't Scared (of 5k) in Thornton!  Fun music, Halloween snacks and costumes galore!!  This event only comes around once every few years when Halloween...
0m 5K
14
OCT
31

Loveland CO
• 10.9 miles
Brisk autumn running in Colorado – OH YEA! Join us for a family fun event with FIVE distance options at the beautiful Boyd Lake State Park venue. Choose your adventure! Heavy 5K, 10K, 15K (4, 7...
1m 4m 7m 10m
18
NOV
7

Loveland, CO
• 9.5 miles
$20 -$30
Our community is the only city in the nation to follow the old tradition of ringing bells throughout the town in the early morning hours of Veteran’s Day. This race will mimic some of those old...
2m
31
NOV
7

Fort Collins, CO
• 5.4 miles
$105 -$275
Welcome to the Colorado 24 Hour Run! We aim to provide a fun, welcoming race experience that allows everyone to find a challenge, no matter where you’re at on your running journey. Want to see...
34
NOV
26

Loveland, CO
• 9.9 miles
$5 -$55
Grab your running shoes (and your turkey hats!) — the 25th Annual Loveland Turkey Trot is here, and this milestone is worth celebrating! 🎉 Voted the #1 Charity Walk/Run by NOCO Style every year...
2
NOV
26

Louisville, CO
• 40.0 miles
$20 -$40
Louisville, Colorado Turkey Trot 2026 The 13th Annual AdventHealth Avista Louisville Turkey Trot began as a way to collect food and donations for our local food bank, Community Food Share, while...
56
NOV
26

Broomfield, CO
• 42.9 miles
$17 -$69
WELCOME TO YOUR FAMILY'S THANKSGIVING DAY TRADITION Welcoming all runners, walkers, and pumpkin pie eaters alike!This fall event is fun for the whole family.Youth and team pricing is available!...
2m 5K 10K
65
NOV
26

Loveland, CO
• 9.9 miles
$20
Come join us on Thanksgiving morning for a 2-mile fun run! The event will be held at Mehaffey Park. We will have a fun course, music, and more! Come dressed in your best Turkey Day outfit. Every...
2m
33
NOV
26

Greeley, CO
• 21.3 miles
$30 -$40
The NCMC Turkey trot is brought to you by the CardioVascular Institute of North Colorado. The race is open to participants of all ages and abilities and includes a 5K race on a scenic,...
2K 5K
8
NOV
26

Windsor, CO
• 11.4 miles
$35 -$45
Stroller and dog friendly! This course goes through Water Valley, starting and ending at the Pelican Lakes golf course parking lot. Receive a light breakfast food, coffee, hot chocolate as well...
5K
33
NOV
26

Erie, CO
• 35.8 miles
$25 -$50
THE PILGRIMAGE - 2 MILE, 4 MILE & KIDS RUN Join us on Thanksgiving Day - It's not about turkey!   This event will start and finish by Erie Community Park at the Erie Recreation Center. Start your...
2m 4m
12
DEC
5

Westminster, CO
• 46.7 miles
$20 -$85
Ho-ho-hit the trail this holiday season at the 15th Annual Fa La La 5K, 10K & half marathon! This festive run/walk benefits A Precious Child and takes you on a scenic journey along the Big Dry...
5K 10K Half Marathon
51
DEC
5

Red Feather Lakes, CO
• 31.9 miles
$35
Enjoy a scenic little dash in and around Red Feather Lakes, Colorado! Wear your favorite onesie (and layer it underneath if you need extra warmth!). Start at The Tavern at Red Feather Lakes and...
34
DEC
5

Loveland, CO
• 10.7 miles
$30 -$80
Each race will run through a part of Loveland we haven’t highlighted until this race. You can pick which distance you want to run! Bring a new, unwrapped toy to the start line and be ready for...
5K 10K 15K
42