August Races within 50 miles of Littleton, CO on Saturdays
Evergreen, CO
Staunton State Park 20K
Aug 3, 2024
Longmont, CO
Sunrise Stampede 5K
Aug 10, 2024
Longmont Kids Only Triathlon
Aug 24, 2024
Longmont Try-a-Tri
Aug 24, 2024
Denver, CO
D'Evelyn Dash
Aug 26, 2023
Festival For Life: AIDS Walk & Run Colorado
Aug 26, 2023
Impact Uganda 5K/10K
Aug 17, 2024
Miles for Migraine
Aug 17, 2024
Donot Stop
Aug 31, 2024
Aurora, CO
Smoky Hill Community 5K
Aug 19, 2023
Run for the Ring 5K
Aug 3, 2024
WW Clyde Family Sports Day
Aug 10, 2024
Idaho Springs, CO
Georgetown to Idaho Springs Half Marathon
Aug 10, 2024
Georgetown, CO
Georgetown to Idaho Springs Half Marathon
Aug 10, 2024
Centennial, CO
Arapahoe Warrior 5K
Aug 3, 2024
Westminster, CO
Holy Cow Trail Stampede
Aug 10, 2024
Jog in the Bog 5K
Aug 24, 2024
Westminster Trail Race
Aug 24, 2024
Winter Park, CO
Byers Peak Stampede
Aug 24, 2024
Berthoud, CO
Berthoud Family Fun Run
Aug 19, 2023
Louisville, CO
Coyote Chase 5K
Aug 19, 2023
Castle Rock, CO
Reece's Roundup
Aug 3, 2024
Highlands Ranch, CO
Q Man Classic
Aug 12, 2023
ThunderRidge Grizzly 2 Mile
Aug 19, 2023
Unicorn 5K South
Aug 3, 2024
Boulder, CO
Transperfect Victory Lap 5K
Aug 19, 2023
South Boulder Creek parkrun
Mar 22, 2025
Mar 29, 2025
Apr 6, 2024
Apr 13, 2024
48 more
Boulder Rez Marathon
Aug 3, 2024
Pearl Street Mile
Aug 3, 2024
Boulder Sunset 10K/5K
Aug 24, 2024
Boulder Sunset Triathlon
Aug 24, 2024
Allenspark, CO
Run Like the Wind
Aug 31, 2024
Wheat Ridge, CO
Colorado Brewery Running Series
Aug 17, 2024
Sat | Sun | Mon | Tue | Wed | Thu | Fri | Multiple |
Event Category
Click Here to find out what Classic, Multisport, and Variety mean.
To narrow your search by a distance or event type, you will need to select Classic, Multisport, or Variety first.
To narrow your search by a distance or event type, you will need to select Classic, Multisport, or Variety first.
1. 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
13 miles point to pointJefferson County, CO
2. Arapahoe Warrior 5K
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Aug 3, 2024Saturday
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5K run
More Information
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Centennial, CO
8 miles point to pointArapahoe County, CO
3. Boulder Rez Marathon
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Aug 3, 2024Saturday
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26.2M, 19.7M, 13.1M, 10K run | 26.2M relay
More Information
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Boulder, CO
31 miles point to pointBoulder County, CO
4. HRCA Splash Mash Dash Kids Triathlon
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Aug 3, 2024Saturday
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youth triathlon
More Information
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Littleton, CO
Arapahoe County, CO
5. Pearl Street Mile
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Aug 3, 2024Saturday
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1M run | kids run
More Information
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Boulder, CO
31 miles point to pointBoulder County, CO
6. Reece's Roundup
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Aug 3, 2024Saturday
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10K, 5K run
More Information
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Castle Rock, CO
18 miles point to pointDouglas County, CO
7. Run for the Ring 5K
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Aug 3, 2024Saturday
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5K run | kids run
More Information
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Aurora, CO
13 miles point to pointArapahoe County, CO
8. South Boulder Creek parkrun
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Aug 3, 2024Saturday
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5K run
More Information
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Boulder, CO
31 miles point to pointBoulder County, CO
9. Staunton State Park 20K
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Aug 3, 2024Saturday
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20K trail run
More Information
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Evergreen, CO
16 miles point to pointJefferson County, CO
10. Unicorn 5K South
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Aug 3, 2024Saturday
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5K run
More Information
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Highlands Ranch, CO
5 miles point to pointDouglas County, CO
11. Colorado Brewery Running Series
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Aug 10, 2024Saturday
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5K run
More Information
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Arvada, CO
13 miles point to pointJefferson County, CO
12. Georgetown to Idaho Springs Half Marathon
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Aug 10, 2024Saturday
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13.1M run
More Information
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startGeorgetown, CO37 miles point to pointfinishIdaho Springs, CO28 miles point to pointClear Creek County, COClear Creek County, CO
13. Georgetown to Idaho Springs Half Marathon
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Aug 10, 2024Saturday
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13.1M run
More Information
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startGeorgetown, CO37 miles point to pointfinishIdaho Springs, CO28 miles point to pointClear Creek County, COClear Creek County, CO
14. Holy Cow Trail Stampede
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Aug 10, 2024Saturday
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10K, 5K run
More Information
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Westminster, CO
15 miles point to pointAdams County, COJefferson County, CO
15. South Boulder Creek parkrun
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Aug 10, 2024Saturday
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5K run
More Information
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Boulder, CO
31 miles point to pointBoulder County, CO
16. Sunrise Stampede 5K
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Aug 10, 2024Saturday
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5K, 1M run
More Information
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Longmont, CO
38 miles point to pointBoulder County, CO
17. WW Clyde Family Sports Day
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Aug 10, 2024Saturday
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5K run
More Information
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Aurora, CO
13 miles point to pointArapahoe County, CO
18. Q Man Classic
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Past DateAug 12, 2023Saturday
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5K run
More Information
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Highlands Ranch, CO
5 miles point to pointDouglas County, CO
19. Colorado Brewery Running Series
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Aug 17, 2024Saturday
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5K run
More Information
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Wheat Ridge, CO
11 miles point to pointJefferson County, CO
20. Impact Uganda 5K/10K
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Aug 17, 2024Saturday
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10K, 5K run
More Information
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Denver, CO
9 miles point to pointDenver 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.