Running races in or near Longmont, CO
Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more
See below for a frequently-updated, comprehensive list of upcoming running events in the local Longmont, 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.
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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Muddy Dash | Denver
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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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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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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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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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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Mack's (Inaugural!) Track Team with Mike Holloway
Organization: Mack Boulder
Date of Race: 02-25-2025
Description: This is the chance to be a part of Mack's first ...
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Colorado 24 Hour Run
Organization: Gnar Runners 2015
Date of Race: 11-01-2025
Description: Welcome to the Colorado 24 Hour Run! We aim to provide ...
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EXPAND: Special Olympics Track and Field
Organization: BOULDER PARKS & RECREATION (w)
Date of Race: 04-02-2025
Description: DescriptionInternet Registration has not begun yet. Check Registration Dates in ...
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24 Hour - Individual Age group/open
Organization: Gnar Runners 2015
Date of Race: 11-01-2025
Description: Welcome to the Colorado 24 Hour Run! We aim to provide ...
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12 Hour - Individual Age group/open
Organization: Gnar Runners 2015
Date of Race: 11-01-2025
Description: Welcome to the Colorado 24 Hour Run! We aim to provide ...
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6 Hour - Individual Age group/open
Organization: Gnar Runners 2015
Date of Race: 11-01-2025
Description: Welcome to the Colorado 24 Hour Run! We aim to provide ...
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EXPAND: Youth Track and Field
Organization: BOULDER PARKS & RECREATION (w)
Date of Race: 04-02-2025
Description: DescriptionInternet Registration has not begun yet. Check Registration Dates in ...
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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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Running Club with Coach Mike - P.E. Teacher ...
Organization: Mack Boulder
Date of Race: 02-24-2025
Description: Coach Mike's Spring Running Group is back for another season! Join ...
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Little Dribblers Camp I
Organization: Colorado Womens Basketball
Date of Race: 06-23-2025
Description: Little Dribblers Camp is for the first time camper or a ...
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Individual Camp I
Organization: Colorado Womens Basketball
Date of Race: 06-23-2025
Description: Individual Camp is a great opportunity for any player looking to ...
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Birding for All - March
Organization: Bird Conservancy of the Rockies
Date of Race: 03-11-2025
Description: Join Bird Conservancy of the Rockies as we partner with Birdability® ...
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Price
Organization: Colorado Womens Basketball
Date of Race: 06-23-2025
Description: Join Bird Conservancy of the Rockies as we partner with Birdability® ...
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Price
Organization: Colorado Womens Basketball
Date of Race: 06-23-2025
Description: Join Bird Conservancy of the Rockies as we partner with Birdability® ...
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Complete list of running events in and near Longmont, CO: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.
More information about Longmont
About Longmont
Longmont (CO) is a city in Boulder County with an estimated population of 86,270.[4]
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Did you know?
In 2014, there were more than 1,100 marathons and more than 541,000 finishers in the U.S.
