Running races in or near Boulder, CO
Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more
See below for a frequently-updated, comprehensive list of upcoming running events in the local Boulder, CO area. Races listed here include both walking and running events of various distances — from 1-milers, to 5Ks, to marathons, and everything else in between.
Muddy Dash - VIP Registration đź’Ž
Organization: Viral Run
Date of Race: 05-10-2025
Description: Muddy Dash is not your average mud run! Get ready for ...
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Bubble Run - Value Registrations
Organization: Viral Run
Date of Race: 06-21-2025
Description: If you’ve done a traditional 5K, you know ...
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Bubble Run - Standard Registration
Organization: Viral Run
Date of Race: 06-21-2025
Description: If you’ve done a traditional 5K, you know ...
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Bubble Run | Denver | June 21st
Organization: Viral Run
Date of Race: 06-21-2025
Description: If you’ve done a traditional 5K, you know ...
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Muddy Dash | Denver | May 10th, 2025
Organization: Viral Run
Date of Race: 05-10-2025
Description: Muddy Dash is not your average mud run! Get ready for ...
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21st Annual Bob Turner Classic 5k Run/Walk
Organization: Turner Middle School
Date of Race: 05-03-2025
Description: All participants are welcome. Come challenge yourself to be the best.
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Muddy Dash - Standard Registration
Organization: Viral Run
Date of Race: 05-10-2025
Description: Muddy Dash is not your average mud run! Get ready for ...
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Muddy Dash - Value Registration
Organization: Viral Run
Date of Race: 05-10-2025
Description: Muddy Dash is not your average mud run! Get ready for ...
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Bubble Run - VIP Registration
Organization: Viral Run
Date of Race: 06-21-2025
Description: If you’ve done a traditional 5K, you know ...
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Running-5K - 16 and Older Adult Registration
Organization: Turner Middle School
Date of Race: 05-03-2025
Description: All participants are welcome. Come challenge yourself to be the best.
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Running-5K - 15 And Under Youth
Organization: Turner Middle School
Date of Race: 05-03-2025
Description: All participants are welcome. Come challenge yourself to be the best.
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Valentine’s Day Biscuits & Gravy Breakfast
Organization: Commerce City Recreation Department
Date of Race: 02-14-2025
Description: DescriptionBring your sweetie, your friends, and your family to the Eagle ...
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2025 Wicked Wine Run Denver, CO
Organization: Wicked Wine Run
Date of Race: 05-10-2025
Description: Whether you’re a seasoned runner or just love to walk and ...
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1K TASTING WALK - Individual
Organization: Wicked Wine Run
Date of Race: 05-10-2025
Description: Whether you’re a seasoned runner or just love to walk and ...
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Volunteer then Run! - Individual
Organization: Wicked Wine Run
Date of Race: 05-10-2025
Description: Whether you’re a seasoned runner or just love to walk and ...
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5K WICKED WINE RUN - Individual
Organization: Wicked Wine Run
Date of Race: 05-10-2025
Description: Whether you’re a seasoned runner or just love to walk and ...
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BOTH 5K + 1K! - Individual
Organization: Wicked Wine Run
Date of Race: 05-10-2025
Description: Whether you’re a seasoned runner or just love to walk and ...
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<< SELECT SESSION
Organization: Mighty Movement
Date of Race: 06-09-2025
Description: Whether you’re a seasoned runner or just love to walk and ...
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Organization: Mighty Movement
Date of Race: 07-28-2025
Description: Whether you’re a seasoned runner or just love to walk and ...
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Week 03 | Ages 8-11 | 10am-2pm @ ...
Organization: Mighty Movement
Date of Race: 06-16-2025
Description: LOUISVILLE'S BEST ACTIVE SUMMER CAMP: Get Outside, Work Hard, Have Fun! ...
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<< SELECT SESSION
Organization: Mighty Movement
Date of Race: 08-04-2025
Description: LOUISVILLE'S BEST ACTIVE SUMMER CAMP: Get Outside, Work Hard, Have Fun! ...
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Organization: Mighty Movement
Date of Race: 07-14-2025
Description: LOUISVILLE'S BEST ACTIVE SUMMER CAMP: Get Outside, Work Hard, Have Fun! ...
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<< SELECT SESSION
Organization: Mighty Movement
Date of Race: 07-07-2025
Description: LOUISVILLE'S BEST ACTIVE SUMMER CAMP: Get Outside, Work Hard, Have Fun! ...
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<< SELECT SESSION
Organization: Mighty Movement
Date of Race: 06-30-2025
Description: LOUISVILLE'S BEST ACTIVE SUMMER CAMP: Get Outside, Work Hard, Have Fun! ...
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<< SELECT SESSION
Organization: Mighty Movement
Date of Race: 07-21-2025
Description: LOUISVILLE'S BEST ACTIVE SUMMER CAMP: Get Outside, Work Hard, Have Fun! ...
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Complete list of running events in and near Boulder, CO: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.
More information about Boulder
About Boulder
Boulder (CO) is a city in Boulder County with an estimated population of 97,385.[4]
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Did you know?
In 2015, the 5K maintained the #1 position of all race distances with 7.6 million finishers (U.S.).
