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 - Team of 3
Organization: Buffs4Life
Date of Race: 06-22-2025
Description: SUNDAY, JUNE 25-8AM START AND FINISH AT ...
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Running-5K - Team of 5
Organization: Buffs4Life
Date of Race: 06-22-2025
Description: SUNDAY, JUNE 25-8AM START AND FINISH AT ...
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Running-5K - Team of 4
Organization: Buffs4Life
Date of Race: 06-22-2025
Description: SUNDAY, JUNE 25-8AM START AND FINISH AT ...
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Running-5K - Individual Age group/open
Organization: Buffs4Life
Date of Race: 06-22-2025
Description: SUNDAY, JUNE 25-8AM START AND FINISH AT ...
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Running-5K - Couples / Team of 2
Organization: Buffs4Life
Date of Race: 06-22-2025
Description: SUNDAY, JUNE 25-8AM START AND FINISH AT ...
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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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Colorado Cross Country Summer Camp
Organization: Colorado Track & Cross Country Camps
Date of Race: 07-07-2025
Description: Nestled 5,430 feet above sea level, Boulder, Colorado is renowned as ...
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Price
Organization: Colorado Track & Cross Country Camps
Date of Race: 07-07-2025
Description: Nestled 5,430 feet above sea level, Boulder, Colorado is renowned as ...
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Muddy Dash - VIP 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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13th Annual Buffs4Life 5k Walk/Run
Organization: Buffs4Life
Date of Race: 06-22-2025
Description: SUNDAY, JUNE 25-8AM START AND FINISH AT ...
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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 - 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 | 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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5k Race June
Organization: Fort Lupton Recreation Center
Date of Race: 06-14-2025
Description: DescriptionA certified 5k Race starts on South Harrison Avenue in front ...
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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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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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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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5K WICKED WINE RUN - Individual ̶R̶e̶g̶u̶l̶a̶r̶ ...
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 R̶e̶g̶u̶l̶a̶r̶ ̶$̶9̶0̶
Organization: Wicked Wine Run
Date of Race: 05-10-2025
Description: Whether you’re a seasoned runner or just love to walk and ...
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1K TASTING WALK - Individual ̶R̶e̶g̶u̶l̶a̶r̶ ̶$̶7̶0̶
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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Price
Organization: Colorado Womens Basketball
Date of Race: 06-23-2025
Description: Whether you’re a seasoned runner or just love to walk and ...
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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?
There were at least 768 marathons scheduled in the United States and Canada in 2016.
