Found 217 races near Bailey, CO

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SEP
23

Winter Park, CO
• 36.4 miles
$150 -$400
CG Adventure Trip – Mountain ExperienceThis event is a guided CG adventure weekend designed to combine structured training, accountability, community, and an elevated mountain experience....
14
SEP
26

Littleton, CO
• 27.3 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

Commerce City, CO
• 41.6 miles
$35 -$65
The Night Nation Run is the World’s first Running Music Festival the ultimate blend of a Music Festival and a Fun Run. Experience a music filled course with Live DJs, Bubble Zones, Light Shows,...
27
SEP
26

Colorado Springs, CO
• 52.6 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

Broomfield, CO
• 56.5 miles
$25 -$40
RUNWAY 5K: In-Person (Broomfield, CO) and Virtual (Anywhere)! A Benefit Run/Walk for Angel Flight West Join Us to Run for a Cause That Matters! Funds raised will support Angel Flight West and...
5K
12
SEP
26

Buena Vista, CO
• 52.3 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
• 52.3 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
SEP
27

Boulder, CO
• 45.2 miles
$40 -$500
This is a virtual race open to supporters across the country who want to take action for children and families. Participants can run, walk, or move in their own community while supporting a...
5K 10K Half Marathon
17
OCT
3

Westminster, CO
• 49.2 miles
$40 -$48
Hi Friends of Big Waves! We are looking forward to having everyone back for our family 5k this year! Please reach out if you have any questions that you don't see the answers for here. My email...
5K
10
OCT
3

Colorado Springs, CO
• 50.3 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
52
OCT
3

Littleton, CO
• 49.1 miles
$10 -$80
The Wildcat Mountain Trail Races showcase some of the most scenic terrain in the HRCA Backcountry Wilderness Area, giving runners a true taste of the rolling hills, open views, and natural beauty...
10K
13
OCT
3

Thornton, CO
• 54.8 miles
You CAN 5k.  This event is for EVERY ONE.  EVERY BODY.  You won't get lost.  You won't get forgotten.  You'll run (or jog or walk or crawl) a clearly marked 5k course with friendly volunteers...
5K
29
OCT
3

Lafayette, CO
• 51.9 miles
$45 -$75
Lafayette Music Fest is put on by Rock for the People, a 501(c)(3) nonprofit organization in Lafayette, CO with the mission of building an inclusive live music community by offering free and...
5K 10K
8
OCT
3

Littleton, CO
• 25.4 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

Broomfield, CO
• 48.4 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
4

Lorton, VA
• 33.0 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
4

Aurora, CO
• 43.3 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 8mi race uses a handicap...
5K 8m
37
OCT
10

Breckenridge, CO
• 10.3 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
• 10.0 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
11

Westminster, CO
• 55.8 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