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34 10k Colorado

Tough Mudder Colorado 2025 - Fort Carson, CO - 15d531d6-ab78-4828-b78a-d4a4415add9b.png

Tough Mudder Colorado 2025

Fort Carson, CO

Sep 20, 2025 - Sep 22, 2025

Pagosa Mountain Chile Cha Cha Trail Races - Pagosa Springs, CO - genericImage-websiteLogo-260088-1754796113.7648-0.bOMbbr.jpg

Pagosa Mountain Chile Cha Cha Trail Races

Pagosa Springs, CO

Sat - Sep 27, 2025

Running > 10k, 5k, Obstacle Race

Pioneer Prairie Dog Half Marathon, 10k & 5k - Westminster, CO - 1.2020-PDH-Series-Button-Brown.png

Pioneer Prairie Dog Half Marathon, 10k & 5k

Westminster, CO

Sat - Sep 27, 2025 @ 8:00 AM

Running > Half Marathon

Pioneer Prairie Dog Half Marathon, 10k & 5k - Westminster, CO - 1.2020-PDH-Series-Button-Brown.png

Pioneer Prairie Dog Half Marathon, 10k & 5k

Westminster, CO

Sat - Sep 27, 2025 @ 8:00 AM

Running > Half Marathon

National Singles Day: Singles & Friends Running DENVER/AURORA - Centennial, CO - genericImage-websiteLogo-245801-1737011662.0787-0.bNIlho.png

National Singles Day: Singles & Friends Running DENVER/AURORA

Centennial, CO

Sat - Sep 27, 2025

Running > 1 mile, 10k, 5k, Half Marathon

Boulderthon, presented by PUMA - Boulder, CO - 2975410-300-300.jpg

Boulderthon, presented by PUMA

Boulder, CO

Sun - Sep 28, 2025 @ 7:00 AM

Running > 5k, 10k

2025 Center of the Nation Series - Day 2 (CO) - Sterling, CO - 0fe8efc4-838a-4820-8725-eb975da710d5.png

2025 Center of the Nation Series - Day 2 (CO)

Sterling, CO

Sep 30, 2025 - Oct 1, 2025

Running > Marathon

Cheers to Oktoberfest Run 5K/10K/13.1 DENVER/AURORA - Centennial, CO - genericImage-websiteLogo-250529-1742457046.6318-0.bN28Jw.png

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

Centennial, CO

Sat - Oct 04, 2025

Running > 5k, 10k, Half Marathon, 1 mile

Race Through Colorado 1M, 5K, 10K, 13.1, 26.2 - Now Only $15! - Denver, CO - genericImage-websiteLogo-260670-1755623024.4477-0.bOPk5W.png

Race Through Colorado 1M, 5K, 10K, 13.1, 26.2 - Now Only $15!

Denver, CO

Oct 4, 2025 - Dec 31, 2025

Running > 1 mile, 10k, 5k, Half Marathon, Marathon

SKECHERS Hot Chocolate Run - Denver - Denver, CO - 2699029_400.jpg

SKECHERS Hot Chocolate Run - Denver

Denver, CO

Sun - Oct 05, 2025 @ 7:00 AM

Running > 10k, 5k

Windsor Marathon, Half Marathon, 10k, 5k - Windsor, CO (October 5, 2025) - Windsor, CO - 2793124-300-300.jpg

Windsor Marathon, Half Marathon, 10k, 5k - Windsor, CO (October 5, 2025)

Windsor, CO

Sun - Oct 05, 2025 @ 7:00 AM

Running > 10k, 5k, Half Marathon, Marathon

Run Against Breast Cancer 5K/10K/13.1 DENVER/AURORA - Centennial, CO - genericImage-websiteLogo-247268-1738761764.5926-0.bNO2yK.png

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

Centennial, CO

Sat - Oct 18, 2025

Running > 1 mile, 10k, 5k, Half Marathon

2025 Eerie Erie - Erie, CO - e73280cd-15c8-46b1-936f-3b2be94a8718.png

2025 Eerie Erie

Erie, CO

Sat - Oct 25, 2025

Halloween Trick or Trot Run 5K/10K/13.1 DENVER/AURORA - Centennial, CO - genericImage-websiteLogo-250532-1742475992.3231-0.bN3bly.png

Halloween Trick or Trot Run 5K/10K/13.1 DENVER/AURORA

Centennial, CO

Sat - Nov 01, 2025

2025 Southwest Series - Day 2 (CO) - Durango, CO - 0fe8efc4-838a-4820-8725-eb975da710d5.png

2025 Southwest Series - Day 2 (CO)

Durango, CO

Nov 10, 2025 - Nov 11, 2025

Veterans Day Freedom Run 5K/10K/13.1 DENVER/AURORA - Centennial, CO - genericImage-websiteLogo-252628-1750143457.6696-0.bOurhH.png

Veterans Day Freedom Run 5K/10K/13.1 DENVER/AURORA

Centennial, CO

Sat - Nov 15, 2025

Run for Coffee Lovers 5K/10K/13.1 DENVER/AURORA - Centennial, CO - genericImage-websiteLogo-245802-1737012414.9201-0.bNIls-.png

Run for Coffee Lovers 5K/10K/13.1 DENVER/AURORA

Centennial, CO

Sat - Nov 29, 2025

Running > 5k, 10k, Half Marathon, 1 mile

Santa Catch 5k and 10k - Running Race - Windsor, CO (December 13, 2025) - Windsor, CO - 2793915-300-300.jpg

Santa Catch 5k and 10k - Running Race - Windsor, CO (December 13, 2025)

Windsor, CO

Sat - Dec 13, 2025 @ 8:00 AM

Run Against Breast Cancer 5K/10K/13.1 DENVER/AURORA - Centennial, CO - genericImage-websiteLogo-247268-1738761764.5926-0.bNO2yK.png

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

Centennial, CO

Sat - Dec 13, 2025

Running > 5k, Half Marathon, 1 mile, 10k

A Merry Christmas Run 5K/10K/13.1 DENVER/AURORA - Centennial, CO - genericImage-websiteLogo-254167-1746841682.834-0.bOhRbs.png

A Merry Christmas Run 5K/10K/13.1 DENVER/AURORA

Centennial, CO

Sat - Dec 27, 2025

New Year New Me Run 5K/10K/13.1 DENVER/AURORA - Centennial, CO - genericImage-websiteLogo-254667-1747634334.3186-0.bOkSIE.png

New Year New Me Run 5K/10K/13.1 DENVER/AURORA

Centennial, CO

Sat - Jan 03, 2026

MLK Freedom Run 5K/10K/13.1 DENVER/AURORA - Centennial, CO - genericImage-websiteLogo-255690-1749012371.7756-0.bOp8-t.png

MLK Freedom Run 5K/10K/13.1 DENVER/AURORA

Centennial, CO

Sat - Jan 17, 2026

Chilly Willy 5K/10K/Half Marathon-Colorado Springs - Colorado Springs, CO - genericImage-websiteLogo-146656-1728672758.2331-0.bNcxp2.png

Chilly Willy 5K/10K/Half Marathon-Colorado Springs

Colorado Springs, CO

Sat - Jan 24, 2026

Lunar New Year Run 5K/10K/13.1 DENVER/AURORA - Centennial, CO - genericImage-websiteLogo-256489-1750141355.8649-0.bOuqMR.png

Lunar New Year Run 5K/10K/13.1 DENVER/AURORA

Centennial, CO

Sat - Feb 07, 2026

Running > 1 mile, 10k, 5k, Half Marathon

Valentines Live, Love, RUN 5K/10K/13.1 DENVER/AURORA - Centennial, CO - genericImage-websiteLogo-255925-1755760638.4402-0.bOPSF-.png

Valentines Live, Love, RUN 5K/10K/13.1 DENVER/AURORA

Centennial, CO

Sat - Feb 14, 2026

Run for Mental Health 5K/10K/13.1 DENVER/AURORA - Centennial, CO - genericImage-websiteLogo-245242-1751340033.2371-0.bOy1qb.png

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

Centennial, CO

Sat - Mar 07, 2026

St. Paddy's Day Lucky Run 5K/10K/13.1 DENVER/AURORA - Centennial, CO - genericImage-websiteLogo-255692-1749013623.6873-0.bOp9r3.png

St. Paddy's Day Lucky Run 5K/10K/13.1 DENVER/AURORA

Centennial, CO

Sat - Mar 14, 2026

Always Hope Easter Run 5K/10K/13.1 DENVER/AURORA - Centennial, CO - genericImage-websiteLogo-255952-1749447280.9324-0.bOrNjW.png

Always Hope Easter Run 5K/10K/13.1 DENVER/AURORA

Centennial, CO

Sat - Apr 04, 2026

Coffee Lovers Run 5K/10K/13.1 DENVER/AURORA - Centennial, CO - genericImage-websiteLogo-256215-1756097059.0578-0.bOQ-OJ.png

Coffee Lovers Run 5K/10K/13.1 DENVER/AURORA

Centennial, CO

Sat - Apr 25, 2026

Running > 1 mile, Half Marathon, 10k, 5k

Cinco De Mayo Run 5K/10K/13.1 DENVER/AURORA - Centennial, CO - genericImage-websiteLogo-255849-1754382955.6135-0.bOKCjR.png

Cinco De Mayo Run 5K/10K/13.1 DENVER/AURORA

Centennial, CO

Sat - May 02, 2026

Running > 1 mile, 10k, 5k, Half Marathon