Half Marathons within 50 miles of Greeley, CO
Longmont, CO
Longmont Half & 5k
Jul 4, 2024
Denver, CO
Time to Paddy 5K/10K and Lucky 13.1
Mar 3, 2024
Three Creeks Half Marathon
Apr 7, 2024
REVEL Rockies
Jun 1, 2024
Sloan's Lake Search Party (SLSP)! Marathon Hourly Loop Race
Sep 7, 2024
Nun Run
Sep 15, 2024
Denver Colfax Marathon
May 18, 2025
May 17, 2025
Cheyenne, WY
Great Bison Shuffle
Sep 21, 2024
Westminster, CO
Time Travel Half Marathon
Apr 20, 2024
All-Out Dog Days
Jul 13, 2024
Hometown Half Marathon
Aug 11, 2024
Westminster Trail Race
Aug 24, 2024
All-Out Fall Fest
Sep 14, 2024
Prairie Dog Half and 10K/5K
Sep 28, 2024
Westy Half & 5K
Oct 13, 2024
All-Out Fa La La
Dec 7, 2024
All-Out Beat the Heat
Apr 19, 2025
Erie, CO
Erie Half & 5K
Aug 18, 2024
Louisville, CO
Colorado 13er
Jun 2, 2024
Louisville Trail Race
Sep 28, 2024
Arctic Prairie Dog Half
Jan 19, 2025
Arvada, CO
Ralston Creek Half Marathon
Feb 18, 2024
All-Out Summer Breeze
Jun 8, 2024
All-Out Runapalooza
Aug 3, 2024
All-Out Polar Prowl
Jan 11, 2025
All-Out Mardi Crawl
Feb 22, 2025
Spring Fling Prairie Dog Half
Apr 13, 2025
Estes Park, CO
Estes Park Marathon
Jun 16, 2024
Jun 15, 2024
Rocky Mountain Half Marathon
Aug 2, 2024
Aug 3, 2024
Boulder, CO
Boulder Rez Half
Apr 13, 2024
Boulder Mothers Day Run
May 12, 2024
Boulder Rez Marathon
Aug 3, 2024
Boulderthon: Downtown Boulder Marathon
Sep 29, 2024
Brighton, CO
Adams Half & 5K
Sep 17, 2023
Blue Heron Half and 5K
Apr 21, 2024
Runs With Scissors Races
Apr 27, 2024
Bellvue, CO
Black Squirrel Half Marathon
Sep 7, 2024
Firestone, CO
Carbon Valley Half Marathon
May 11, 2024
Fort Collins, CO
Spring Equinox Races
Mar 24, 2024
Choice City Running Festival - Mountain Avenue Mile & Human Race
Aug 10, 2024
Aug 9, 2024
Fall Equinox Marathon
Sep 22, 2024
Colorado Brewery Running Series
Oct 6, 2024
Long View Marathon
Oct 12, 2024
Horsetooth Half Marathon
Apr 13, 2025
Colorado Marathon
May 4, 2025
Severance, CO
Great Western Trail Race
Apr 20, 2024
Sat | Sun | Mon | Tue | Wed | Thu | Fri | Multiple |
Featured Listing
1. Fall Equinox Marathon
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Sep 22, 2024Sunday
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26.2M, 13.1M, 5M run
Virtual OptionMore Information
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Boston Marathon Qualifier
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Fort Collins, CO
Larimer County, CO
1. Adams Half & 5K
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Past DateSep 17, 2023Sunday
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13.1M, 5K run
More Information
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Brighton, CO
31 miles point to pointAdams County, CO
2. Ralston Creek Half Marathon
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Past DateFeb 18, 2024Sunday
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13.1M, 5K run
More Information
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Arvada, CO
47 miles point to pointJefferson County, CO
3. Time to Paddy 5K/10K and Lucky 13.1
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Past DateMar 3, 2024Sunday
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13.1M, 10K, 5K run | kids run
Virtual OptionMore Information
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Denver, CO
50 miles point to pointDenver County, CO
4. Spring Equinox Races
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Past DateMar 24, 2024Sunday
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13.1M, 5K run
More Information
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Fort Collins, CO
23 miles point to pointLarimer County, CO
5. Three Creeks Half Marathon
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Past DateApr 7, 2024Sunday
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13.1M run
More Information
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Denver, CO
50 miles point to pointDenver County, CO
6. Boulder Rez Half
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Past DateApr 13, 2024Saturday
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13.1M, 10K, 5K run
More Information
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Boulder, CO
41 miles point to pointBoulder County, CO
7. Great Western Trail Race
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Past DateApr 20, 2024Saturday
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13.1M, 10K, 5K run | kids run
More Information
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Severance, CO
10 miles point to pointWeld County, CO
8. Time Travel Half Marathon
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Past DateApr 20, 2024Saturday
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13.1M, 10K, 5K run
More Information
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Westminster, CO
44 miles point to pointAdams County, COJefferson County, CO
9. Blue Heron Half and 5K
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Past DateApr 21, 2024Sunday
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13.1M, 5K run
More Information
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Brighton, CO
31 miles point to pointAdams County, CO
10. Runs With Scissors Races
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Past DateApr 27, 2024Saturday
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50K, 26.2M, 13.1M run
More Information
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Brighton, CO
31 miles point to pointAdams County, CO
11. Carbon Valley Half Marathon
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Past DateMay 11, 2024Saturday
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13.1M, 5K, 1M run | 13.1M relay | kids run
More Information
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Firestone, CO
25 miles point to pointWeld County, CO
12. Boulder Mothers Day Run
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Past DateMay 12, 2024Sunday
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13.1M, 10K, 5K trail run
More Information
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Boulder, CO
41 miles point to pointBoulder County, CO
13. REVEL Rockies
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Jun 1, 2024Saturday
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26.2M, 13.1M run
More Information
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Boston Marathon Qualifier
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Denver, CO
50 miles point to pointDenver County, CO
14. Colorado 13er
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Jun 2, 2024Sunday
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13.1M, 10K, 5K run
More Information
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Louisville, CO
38 miles point to pointBoulder County, CO
15. All-Out Summer Breeze
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Jun 8, 2024Saturday
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13.1M, 10K, 5K run
Virtual OptionMore Information
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Arvada, CO
47 miles point to pointJefferson County, CO
16. Estes Park Marathon
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Jun 16, 2024Sunday
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26.2M, 13.1M run
Virtual OptionMore Information
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Estes Park, CO
44 miles point to pointLarimer County, CO
17. Red, White and Brew 5K, 10K & Half Marathon
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Jun 22, 2024Saturday
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13.1M, 10K, 5K run | last man standing | kids run
More Information
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Windsor, CO
11 miles point to pointWeld County, CO
18. Longmont Half & 5k
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Jul 4, 2024Thursday
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13.1M, 5K run
More Information
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Longmont, CO
27 miles point to pointBoulder County, CO
19. All-Out Dog Days
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Jul 13, 2024Saturday
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13.1M, 10K, 5K run
Virtual OptionMore Information
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Westminster, CO
44 miles point to pointAdams County, COJefferson County, CO
20. All-Out Runapalooza
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Aug 3, 2024Saturday
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13.1M, 10K, 5K run
Virtual OptionMore Information
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Arvada, CO
47 miles point to pointJefferson County, CO
For the love of all that Is good And moisture wicking...
Though we Try To be accurate And On top Of things... Race details can change When we aren't lookin. And once in a while we simply make a mistake.
ALWAYS visit the race's website for the most complete and accurate race information.
ALWAYS visit the race's website for the most complete and accurate race information.