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.
Muddy Dash - VIP Registration đ
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 | 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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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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2025 Wicked Wine Run Denver, CO
Organization: Wicked Wine Run
Date of Race: 05-10-2025
Description: Whether youâre 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 youâre 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 youâre 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 youâre 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 youâre a seasoned runner or just love to walk and ...
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Valentine's Date with Mom
Organization: Commerce City Recreation Department
Date of Race: 02-12-2025
Description: DescriptionInternet Registration has not begun yet. Check Registration Dates in ...
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Birding for All - December
Organization: Bird Conservancy of the Rockies
Date of Race: 12-10-2024
Description: Join Bird Conservancy of the Rockies as we partner with BirdabilityÂź ...
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Dungeon Delvers with Renaissance Adventures - EVERY Friday!
Organization: Mack Boulder
Date of Race: 12-06-2024
Description: Join our dynamic game masters and story crafters for an in-person ...
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Owl-About-Art Homeschool Program
Organization: Bird Conservancy of the Rockies
Date of Race: 11-21-2024
Description: Join Bird Conservancy of the Rockies for a monthly educational Family ...
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Water Safety Info Session
Organization: BOULDER PARKS & RECREATION (w)
Date of Race: 12-14-2024
Description: DescriptionHave you ever wanted to know more about water safety in ...
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Water Safety Info Session
Organization: BOULDER PARKS & RECREATION (w)
Date of Race: 12-14-2024
Description: DescriptionHave you ever wanted to know more about water safety in ...
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Water Safety Info Session
Organization: BOULDER PARKS & RECREATION (w)
Date of Race: 12-14-2024
Description: DescriptionHave you ever wanted to know more about water safety in ...
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Youth Basketball League-Grade 5-6 (Boys)
Organization: Commerce City Recreation Department
Date of Race: 01-06-2025
Description: DescriptionEnhance basketball skills through practice and games in this exciting, challenging, ...
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Youth Basketball League-Grade 5-6 (Boys)
Organization: Commerce City Recreation Department
Date of Race: 01-06-2025
Description: DescriptionEnhance basketball skills through practice and games in this exciting, challenging, ...
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Youth Basketball League -Grade 3-4 (Boys)
Organization: Commerce City Recreation Department
Date of Race: 01-11-2025
Description: DescriptionEnhance basketball skills through practice and games in this exciting, ...
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Youth Basketball League-Grade 5-6 (Girls)
Organization: Commerce City Recreation Department
Date of Race: 01-11-2025
Description: DescriptionEnhance ...
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Youth Basketball League-Grade 5-6 (Boys)
Organization: Commerce City Recreation Department
Date of Race: 01-06-2025
Description: DescriptionEnhance basketball skills through practice and games in this exciting, challenging, ...
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Youth Basketball League -Grade 3-4 (Girls)
Organization: Commerce City Recreation Department
Date of Race: 01-11-2025
Description: DescriptionEnhance basketball skills through practice and games in this exciting, ...
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Youth Basketball League -Grade 3-4 (Boys)
Organization: Commerce City Recreation Department
Date of Race: 01-11-2025
Description: DescriptionEnhance basketball skills through practice and games in this exciting, ...
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Youth Basketball League -Grade 3-4 (Boys)
Organization: Commerce City Recreation Department
Date of Race: 01-11-2025
Description: DescriptionEnhance basketball skills through practice and games in this exciting, ...
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Youth Basketball League -Grade 3-4 (Girls)
Organization: Commerce City Recreation Department
Date of Race: 01-11-2025
Description: DescriptionEnhance basketball skills through practice and games in this exciting, ...
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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.
