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5K Races in Colorado

  1. Races by State
  2. Colorado
  3. 5K

Browse 5K races in Colorado, including upcoming races and races up to one year past their event date. Sort by highest rating or number of reviews to elevate the most popular races.

For each 5K race, you’ll find key details, finisher ratings and reviews, photos, videos, related articles, race-day weather data and a link to register.

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Showing 5K races in Colorado

High Line Canal Summer Scamper
Denver, CO | Jun 24, 2026

OVERALL

(0 ratings)

0
Before The Fourth 5K
Littleton, CO | Jun 27, 2026

OVERALL

(1 rating)

5
Boulder Sunrise Run
Boulder, CO | Jun 28, 2026

OVERALL

(0 ratings)

0
FireKracker 5K
Fort Collins, CO | Jul 4, 2026

OVERALL

(1 rating)

4
Mount Evans Freedom Run 5K
Evergreen, CO | Jul 4, 2026

OVERALL

(0 ratings)

0
ROCK-IT Run 5K & Half Marathon
Castle Rock, CO | Jul 4, 2026

OVERALL

(0 ratings)

0
Cookie Chase 5K
Denver, CO | Jul 11, 2026

OVERALL

(0 ratings)

0
Dog Days Half Marathon
Westminster, CO | Jul 11, 2026

OVERALL

(0 ratings)

0
Diplo’s Run Club Denver
Denver, CO | Jul 12, 2026

OVERALL

(0 ratings)

0
Spring Creek Memorial Trail Run
Steamboat Springs, CO | Jul 18, 2026

OVERALL

(1 rating)

5
Summer Splash Prairie Dog Half Marathon Castle Rock
Castle Rock, CO | Jul 18, 2026

OVERALL

(3 ratings)

3.3
Aspen Valley Marathon
Aspen, CO | Jul 26, 2026

OVERALL

(15 ratings)

3.8
Rocky Mountain Half Marathon 🏆
Estes Park, CO | Jul 31, 2026 – Aug 1, 2026

OVERALL

(129 ratings)

4.7
Move With MADD 5K Denver
Denver, CO | Aug 1, 2026

OVERALL

(0 ratings)

0
Popsicle Half, 10K & 5K
Colorado Springs, CO | Aug 1, 2026

OVERALL

(0 ratings)

0
All-Out Runapalooza
Arvada, CO | Aug 8, 2026

OVERALL

(1 rating)

4
Run the Rockies Trail 5K, 10K & Half Marathon
Frisco, CO | Aug 8, 2026

OVERALL

(0 ratings)

0
St. Vrain for the Brain 5K
Niwot, CO | Aug 8, 2026

OVERALL

(0 ratings)

0
Summer Sizzler Denver
Westminster, CO | Aug 8, 2026

OVERALL

(0 ratings)

0
Cheyenne Mountain Run
Colorado Springs, CO | Aug 15, 2026

OVERALL

(0 ratings)

0

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