Running races in or near Fairfield, CA
Marathons, 1-milers, 5Ks, half-marathons, 10Ks & more
See below for a frequently-updated, comprehensive list of upcoming running events in the local Fairfield, CA 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 - Exclusive VIP Registration - R̶e̶g̶u̶l̶a̶r̶ ...
Organization: Viral Run
Date of Race: 11-08-2025
Description: Muddy Dash is not your average mud run! Get ready for ...
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Half Marathon - Half - Individual
Organization: 10xEM LLC
Date of Race: 04-26-2026
Description: The annualrunning of theNapa Spring Half Marathon and ...
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5K - 5K - Individual
Organization: 10xEM LLC
Date of Race: 04-26-2026
Description: The annualrunning of theNapa Spring Half Marathon and ...
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Muddy Dash - Value Registration- R̶e̶g̶u̶l̶a̶r̶ P̶r̶i̶c̶e̶ $̶7̶4.9̶5̶
Organization: Viral Run
Date of Race: 11-08-2025
Description: Muddy Dash is not your average mud run! Get ready for ...
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Children in Strollers - Stroller
Organization: 10xEM LLC
Date of Race: 04-26-2026
Description: The annualrunning of theNapa Spring Half Marathon and ...
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2026 Napa Spring Half Marathon & 5K
Organization: 10xEM LLC
Date of Race: 04-26-2026
Description: The annualrunning of theNapa Spring Half Marathon and ...
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Muddy Dash | Sacramento
Organization: Viral Run
Date of Race: 11-08-2025
Description: Muddy Dash is not your average mud run! Get ready for ...
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2025 Wicked Wine Run Napa, CA
Organization: Wicked Wine Run
Date of Race: 10-11-2025
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: 10-11-2025
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: 10-11-2025
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: 10-11-2025
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: 10-11-2025
Description: Whether you’re a seasoned runner or just love to walk and ...
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Flag Football- Rookies
Organization: City of Antioch Recreation Department
Date of Race: 07-31-2025
Description: DescriptionThis exciting and fun-filled flag football class is designed for kids ...
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Flag Football- Rookies
Organization: City of Antioch Recreation Department
Date of Race: 07-31-2025
Description: DescriptionThis exciting and fun-filled flag football class is designed for kids ...
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Flag Football- Rookies
Organization: City of Antioch Recreation Department
Date of Race: 07-31-2025
Description: DescriptionThis exciting and fun-filled flag football class is designed for kids ...
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Complete list of running events in and near Fairfield, CA: Marathons, 1-milers, 5Ks, half-marathons, 10Ks, obstacle courses, walking events & more.
More information about Fairfield
About Fairfield
Fairfield (CA) is a city in Solano County with an estimated population of 105,321.[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.).
