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42 Half Marathon Colorado

Cinco De Mayo Run: Against All Odds DENVER/AURORA - Aurora, CO - genericImage-websiteLogo-241924-1732111849.0781-0.bNpE3P.png

Cinco De Mayo Run: Against All Odds DENVER/AURORA

Aurora, CO

Sat - May 03, 2025

Sloth Runners Race 5K/10K/13.1 DENVER/AURORA - Centennial, CO - genericImage-websiteLogo-243364-1737530491.9783-0.bNKjX7.png

Sloth Runners Race 5K/10K/13.1 DENVER/AURORA

Centennial, CO

Sat - May 03, 2025

Longmont Half Marathon & 5k

Longmont, CO

Sun - May 04, 2025 @ 7:30 AM

Running > 5k, Half Marathon

The Colorado Marathon - Fort Collins, CO - genericImage-websiteLogo-236375-1724689427.7274-0.bMZkWt.png

The Colorado Marathon

Fort Collins, CO

Sun - May 04, 2025

Running > Marathon

2025 Basalt Half Marathon & Relay - Basalt, CO - running-16.png

2025 Basalt Half Marathon & Relay

Basalt, CO

May 31, 2025 - Jun 1, 2025

Running > Half Marathon

Father's Day Fun Run 5K/10K/13.1 DENVER/AURORA - Centennial, CO - genericImage-websiteLogo-244670-1735632823.5485-0.bNC6E3.png

Father's Day Fun Run 5K/10K/13.1 DENVER/AURORA

Centennial, CO

Sat - Jun 14, 2025

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

Run for Donuts 5K/10K/13.1 DENVER/AURORA - Centennial, CO - genericImage-websiteLogo-244610-1736340324.3021-0.bNFNnK.png

Run for Donuts 5K/10K/13.1 DENVER/AURORA

Centennial, CO

Sat - Jun 14, 2025

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

Red, White, and Brew - 5k, 10k, 1/2 Marathon, 12 Hour "Last Person Standing" - Windsor (June 21, 2025) - Windsor, CO - 2788182Raceplace.jpg

Red, White, and Brew - 5k, 10k, 1/2 Marathon, 12 Hour "Last Person Standing" - Windsor (June 21, 2025)

Windsor, CO

Sat - Jun 21, 2025 @ 7:00 AM

Running > 5k, 10k, Half Marathon

New Year Challenge – Year of the Snake 2.025 Mile 20.25 Mile 202.5 MILE - Denver, CO - IMG_3206.jpeg

New Year Challenge – Year of the Snake 2.025 Mile 20.25 Mile 202.5 MILE

Denver, CO

Jun 21, 2025 - Jun 28, 2025 (8:00 AM)

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

July 4th Freedom Run 5K/10K/13.1 DENVER/AURORA - Centennial, CO - genericImage-websiteLogo-244671-1735634935.5728-0.bNC6_3.png

July 4th Freedom Run 5K/10K/13.1 DENVER/AURORA

Centennial, CO

Sat - Jul 05, 2025

Fleet Feet Denver Fall Half-Marathon Twelve-Week Training Program - Littleton, CO - genericImage-websiteLogo-252451-1744903704.758-0.bOar4y.png

Fleet Feet Denver Fall Half-Marathon Twelve-Week Training Program

Littleton, CO

Jul 8, 2025 - Sep 28, 2025

Running > Half Marathon

The Alma Foundation Race in the Clouds Dirt Festival - Alma, CO - genericImage-websiteLogo-239345-1729299727.9955-0.bNeWup.jpg

The Alma Foundation Race in the Clouds Dirt Festival

Alma, CO

Jul 10, 2025 - Jul 13, 2025

Running > Half Marathon

Summer Splash Prairie Dog Half Marathon, 10k & 5k

Castle Rock, CO

Jul 19, 2025 - Jul 25, 0007 (6:30 AM)

Running > 10k, 5k, Half Marathon

Hero Hustle Colorado Springs - Colorado Springs, CO - genericImage-websiteLogo-247370-1738880596.8301-0.bNPtzu.png

Hero Hustle Colorado Springs

Colorado Springs, CO

Sat - Aug 02, 2025

Running > Half Marathon

Popsicle 5K/10K/Half - Colorado Springs - Colorado Springs, CO - genericImage-websiteLogo-85485-1717433050.9089-0.bMxFlA.jpg

Popsicle 5K/10K/Half - Colorado Springs

Colorado Springs, CO

Sat - Aug 02, 2025

Run for Wine & Cheese 5K/10K/13.1 DENVER/AURORA - Centennial, CO - genericImage-websiteLogo-244669-1735628103.2922-0.bNC5vh.png

Run for Wine & Cheese 5K/10K/13.1 DENVER/AURORA

Centennial, CO

Sat - Aug 02, 2025

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

Bound for Boston Marathon & Half Marathon - Denver

Denver, CO

Sun - Aug 03, 2025

Running > Marathon

I'm Bound for Boston Marathon & Half Marathon - Denver - Denver, CO - running-9.png

I'm Bound for Boston Marathon & Half Marathon - Denver

Denver, CO

Sun - Aug 03, 2025 @ 6:30 AM

Running > Marathon

Erie Half & 5k - Erie, CO - 8.2021-ERIE.png

Erie Half & 5k

Erie, CO

Sun - Aug 17, 2025 @ 7:00 AM

Staunton Rocks! Marathon & Half - Conifer, CO - Staunton_Rocks_Logo.png

Staunton Rocks! Marathon & Half

Conifer, CO

Sat - Aug 23, 2025 @ 7:00 AM

Running > Half Marathon

Staunton Rocks! Marathon and Half Marathon - Pine, CO - genericImage-websiteLogo-243053-1733354756.792-0.bNuoue.png

Staunton Rocks! Marathon and Half Marathon

Pine, CO

Sat - Aug 23, 2025

Running > Half Marathon, Marathon

Labor Day Run 5K/10K/13.1 DENVER/AURORA - Centennial, CO - genericImage-websiteLogo-245480-1736779754.0553-0.bNHsFQ.png

Labor Day Run 5K/10K/13.1 DENVER/AURORA

Centennial, CO

Sat - Aug 30, 2025

Black Squirrel Half Marathon - Bellvue, CO - genericImage-websiteLogo-243088-1733419557.6842-0.bNuEiL.png

Black Squirrel Half Marathon

Bellvue, CO

Sat - Sep 06, 2025

Running > Half Marathon

National Chocolate Day: Run for Chocolates DENVER/AURORA - Centennial, CO - genericImage-websiteLogo-245684-1736915534.5077-0.bNHZPo.png

National Chocolate Day: Run for Chocolates DENVER/AURORA

Centennial, CO

Sat - Sep 13, 2025

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

Red Feather Trail Jamboree - Red Feather Lakes, CO - genericImage-websiteLogo-243095-1733421866.1149-0.bNuESQ.png

Red Feather Trail Jamboree

Red Feather Lakes, CO

Sep 26, 2025 - Sep 27, 2025

Running > Half Marathon, Ultra

Red Feather Trail Jamboree - Red Feather Lakes, CO - RFTJ.png

Red Feather Trail Jamboree

Red Feather Lakes, CO

Sep 26, 2025 - Sep 28, 2025 (6:00 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 > 10k, 5k, 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

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

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 > 5k, Marathon, 10k, Half Marathon