10K Races in Colorado

Find upcoming 10k races in Colorado — with dates, locations, and direct registration links.

101 upcoming 10k races found in Colorado

Upcoming 10K Races in Colorado

5K Registration+5

Aug 15

Run for PB& J 5K/10K/13.1 DENVER/AURORA

Sat, August 15, 2026

Centennial, CO

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5K Registration+5

Aug 15

Bagel Run 5K/10K/13.1 DENVER/AURORA

Sat, August 15, 2026

Centennial, CO

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Half Marathon+2

Aug 15

Endurance Race Series – Westminster 13.1 , 10K, 5K

Sat, August 15, 2026

Westminster, CO

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5K+2

Aug 15

The Cheyenne Mountain Run

Sat, August 15, 2026

Colorado Springs, CO

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5K Run or Walk+1

Aug 22

2026 True Impact Ministries 5K/10K

Sat, August 22, 2026

Centennial, CO

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Log Hill Hustle 5k+3

Aug 23

11th Annual Log Hill Hustle

Sun, August 23, 2026

Ridgway, CO

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Half Marathon+2

Aug 23

Pioneer Prairie Dog Half, 10k & 5k

Sun, August 23, 2026

Westminster, CO

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5K Registration+5

Aug 29

Run to Breast Cancer 5K/10K/13.1 DENVER/AURORA

Sat, August 29, 2026

Centennial, CO

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5K Registration+5

Aug 29

Sloth Run 5K/10K/13.1 DENVER/AURORA

Sat, August 29, 2026

Centennial, CO

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5K+3

Aug 30

James Test Site

Sun, August 30, 2026

Lyons, CO

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Kid's Dash+6

Sep 5

Golden Harvest Half Marathon & 5k/10k - Denver

Sat, September 5, 2026

Denver, CO

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Break Your Neck Walk, Run, or Roll 5k+1

Sep 5

Break Your Neck: Walk, Run, or Roll

Sat, September 5, 2026

Pueblo, CO

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5K Run+3

Sep 5

The Beaver Run

Sat, September 5, 2026

Breckenridge, CO

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10k+1

Sep 6

10k at 10,000 Feet

Sun, September 6, 2026

Steamboat Springs, CO

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5k+6

Sep 6

Golden Harvest Half Marathon & 5k/10k - Colorado Springs

Sun, September 6, 2026

Colorado Springs, CO

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Half Marathon+3

Sep 7

Labor Day Half Marathon

Mon, September 7, 2026

Parker, CO

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10K - 13++8

Sep 10

14th Annual Superhero Event

Thu, September 10, 2026

Greeley, CO

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Trail Sisters Women's Half Marathon+1

Sep 12

Trail Sisters Women's Half Marathon & 10k

Sat, September 12, 2026

Buena Vista, CO

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5K Registration+5

Sep 12

National Chocolate Day: Run for Chocolates 5K/10K/13.1 DENVER/AURORA

Sat, September 12, 2026

Centennial, CO

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5K Registration+5

Sep 12

Run for Mental Health 5K/10K/13.1 DENVER/AURORA

Sat, September 12, 2026

Centennial, CO

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Break Your Neck Walk, Run, or Roll 5k+1

Sep 12

Break Your Neck: Walk, Run, or Roll

Sat, September 12, 2026

Pueblo, CO

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10k+1

Sep 13

RMRR September Trophy Series

Sun, September 13, 2026

Thornton, CO

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10k+1

Sep 13

RMRR September 5k/10k

Sun, September 13, 2026

Thornton, CO

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Half Marathon+3

Sep 19

Autumn Run

Sat, September 19, 2026

Buena Vista, CO

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Half-Marathon+5

Sep 19

Beulah Challenge and OverIt Series

Sat, September 19, 2026

Beulah, CO

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5K Run+5

Sep 19

Wellington STAR Foundation 5K 10K

Sat, September 19, 2026

Wellington, CO

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Half Marathon+5

Sep 19

All-Out Fall Fest

Sat, September 19, 2026

Westminster, CO

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5K+4

Sep 20

20th Annual Golden Gallop

Sun, September 20, 2026

Golden, CO

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5K Run+1

Sep 20

Chile & Frijole Hot to Trot 5K & 10K

Sun, September 20, 2026

Pueblo, CO

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5K Registration+5

Sep 26

Oktoberfest Run 5K/10K/13.1 DENVER/AURORA

Sat, September 26, 2026

Centennial, CO

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