Found 101 races

🎉 Join Your Local Running Community!

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

SEP
13

Palmer Lake, CO
• 71.6 miles
$35
Join us on Sunday, September 14, 2025, at Palmer Lake Regional Recreation Area for the 7th Annual Colorado Run for the Fallen—an up to 6-hour untimed run/walk/ruck hosted by the Honor and...
5
SEP
19

Colorado Springs, CO
• 45.8 miles
$25
All Hands on Deck Pirates 5K in Colorado Springs. Register now for this exciting running event.
5K
70
SEP
19

Beulah, CO
• 24.7 miles
$20 -$205
RACE START TIMES: 1/2 Marathon - 8:00 a.m.10K - 9:00 a.m.5K - 9:15 a.m. The Beulah Challenge, which started in 1996, is a 5K, 10K, and half-marathon run near Beulah, a small southern Colorado...
5K 10K Half Marathon
13
SEP
19

Manitou Springs, CO
• 45.3 miles
$200 -$225
13.32 miles and 7,867ft of elevation gain.   From Manitou Springs to the summit of Pikes Peak. This is not your average half marathon, it is a challenge unlike any other!  
35
SEP
20

Pueblo, CO
• 1.3 miles
$35 -$50
Southern Colorado Runners welcomes you to the revived Chile & Frijole Hot to Trot Race Sunday, September 20, 2026 @ 8AM. The Chile & Frijole Hot to Trot Race will be held on the last day of the...
5K 10K
10
SEP
20

Pueblo, CO
• 1.3 miles
$35 -$50
Southern Colorado Runners welcomes you to the revived Chile & Frijole Hot to Trot Race Sunday, September 20, 2026 @ 8AM. The Chile & Frijole Hot to Trot Race will be held on the last day of the...
5K 10K
10
SEP
20

Manitou Springs, CO
• 45.3 miles
$225 -$250
The 71st Annual Pikes Peak Marathon 26.2 miles with 7,834ft of elevation gain (and loss).From Manitou Springs to the summit of Pikes Peak and then back again.This is not your average marathon, it...
Marathon
64
SEP
26

Center, CO
• 88.9 miles
$25
Run in Center, CO with t-shirt
76
SEP
26

Littleton, CO
• 100.9 miles
$40 -$65
Put on your lederhosen and sneakers as we kick off the annual HRCA Oktoberfest 5K in Town Center on Saturday, September 26, starting at 9:00 a.m.! Celebrate fall with a family-friendly,...
5K
21
SEP
26

Colorado Springs, CO
• 41.7 miles
$90 -$120
What Is OUTLAST? OUTLAST is a 6-hour trail endurance challenge where runners complete a 5K every hour, on the hour. Each lap must be finished within the hour to stay in the event. If you finish...
3
SEP
26

Westcliffe, CO
• 48.2 miles
$60 -$375
The Human Potential Running Series PresentsThe Sangre de Cristo Trail Festival @ Music Meadows Ranch Come join us on the Rainbow Trail in the Sangre de Cristo mountains. Run beneath the watchful...
27K 50K 100K
135
SEP
26

Buena Vista, CO
• 98.5 miles
$125 -$190
With glorious views of the Collegiate Peaks and 4,000ft of ascent along the way, these 18 or 30 miles of buttery single track and forest roads are perfect for everyone from the first time trail...
30K 50K
SEP
27

Buena Vista, CO
• 98.5 miles
$35 -$50
14er Fest is a multi-user trail event held in the fall in Buena Vista, CO. Trail running is a key component of the event, and we offer two unique races as options. In the spirit of "14er" Fest,...
5K 14K
22
OCT
3

Colorado Springs, CO
• 41.9 miles
$8 -$500
Come celebrate the 13th Annual Colorado Springs Marathon Saturday, October 3, 2026!  Whether you are a seasoned runner or looking to tackle your first 5k, we have you covered with 4 events to...
5K Half Marathon Marathon
51
OCT
3

Littleton, CO
• 102.7 miles
$90 -$120
What Is OUTLAST? OUTLAST is a 6-hour trail endurance challenge where runners complete a 5K every hour, on the hour. Each lap must be finished within the hour to stay in the event. If you finish...
1
OCT
3

Canon City, CO
• 37.3 miles
$40 -$100
Get ready for a ROYALly GORGEous experience! Whether you’re tackling the 5K, the 8-mile trail run, or the half marathon trail run, this event offers something truly special. All three races...
5K 8m Half Marathon
25
OCT
4

Lorton, VA
• 98.6 miles
$50 -$67
Located just south of the Capital Beltway in Lorton, this beautiful race course includes a mixture of forested and open meadow singletrack meandering through 1600 acres of the former prison...
5m 10m
OCT
10

Breckenridge, CO
• 123.4 miles
$25 -$150
Join us for an unforgettable two-day running experience in the heart of Breckenridge!Our Breckenridge RunFest kicks off Saturday with a 5K and 10K along Main Street, followed by the Half Marathon...
5K 10K Half Marathon Marathon
21
OCT
10

Manitou Springs, CO
• 44.9 miles
$25 -$40
3rd annual Manitou 5K!  Come celebrate the beauty of Manitou Springs!  Race starts and ends in Fields park.  Run along the rolling creek, view the art along the Creekwalk, loop the beautiful...
5K
68
OCT
17

Sedalia, CO
• 93.1 miles
$50 -$170
The Human Potential Running Series PresentsThe Indian Creek Trail Runs @ Indian Creek Campground The Indian Creek Trail Runs is the oldest official race of HPRS and is also known as our annual...
55K