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 - 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 ...
View Race Details View on Map
Muddy Dash | Sacramento
Organization: Viral Run
Date of Race: 11-08-2025
Description: Muddy Dash is not your average mud run! Get ready for ...
View Race Details View on Map
Children in Strollers - Stroller
Organization: 10xEM LLC
Date of Race: 04-26-2026
Description: The annualrunning of theNapa Spring Half Marathon and ...
View Race Details View on Map
5K - 5K - Individual
Organization: 10xEM LLC
Date of Race: 04-26-2026
Description: The annualrunning of theNapa Spring Half Marathon and ...
View Race Details View on Map
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 ...
View Race Details View on Map
Half Marathon - Half - Individual
Organization: 10xEM LLC
Date of Race: 04-26-2026
Description: The annualrunning of theNapa Spring Half Marathon and ...
View Race Details View on Map
2026 Napa Spring Half Marathon & 5K
Organization: 10xEM LLC
Date of Race: 04-26-2026
Description: The annualrunning of theNapa Spring Half Marathon and ...
View Race Details View on Map
1K WINE WALK - Individual
Organization: Wicked Wine Run
Date of Race: 10-10-2026
Description: Whether you’re a seasoned runner or just love to walk and ...
View Race Details View on Map
2026 Wicked Wine Run Napa Valley Fall Date
Organization: Wicked Wine Run
Date of Race: 10-10-2026
Description: Whether you’re a seasoned runner or just love to walk and ...
View Race Details View on Map
BOTH 5K + 1K! - Individual
Organization: Wicked Wine Run
Date of Race: 10-10-2026
Description: Whether you’re a seasoned runner or just love to walk and ...
View Race Details View on Map
Volunteer then Run! - Individual
Organization: Wicked Wine Run
Date of Race: 10-10-2026
Description: Whether you’re a seasoned runner or just love to walk and ...
View Race Details View on Map
5K WICKED WINE RUN - Individual
Organization: Wicked Wine Run
Date of Race: 10-10-2026
Description: Whether you’re a seasoned runner or just love to walk and ...
View Race Details View on Map
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]
Races Local Newsletter
Subscribe to get the latest on racing delivered to your inbox, once per week.
Did you know?
There were at least 768 marathons scheduled in the United States and Canada in 2016.
