View some of the best Half Marathon races in Fairfield, California! RaceMob's race calendar allows you to find races that suits your needs. Use our advanced filters below or calendar on the right, and discover new races. We try to maintain up to date information, and rely heavily on our community of volunteers. If you find a race that we're missing, use the "Suggest Race" button on the right. Find RaceMob discounts that others have added or add deals that you've discovered.
RACE INFO: We are so excited to announce that we are back in-person for the 38th annual Lake Chabot Trail Challenge Half Marathon and 5K. This race is well regarded amongst serious trail runners in the outlying areas. The race begins at 8am for t...
Thank you for your interest in the 2022 Mare Island Half sponsored by the Mare Island Brewing Company. We will be running from the Mare Island Brewing Company coal shed location on Mare Island and stay on the island for the full race. Our Half Ma...
RUN SIP NAPA TO SONOMA NAMED ONE OF THE TOP 7 MOST SCENIC HALF MARATHONS IN THE U.S. BY FORBES The world-renowned Napa and Sonoma Valleys serve as the host of this incredible event; offering the finest in wine country ambience and hospitality. Ot...
The Island Run Festival is a rebranding of the old Alameda Run Festival that we cancelled during covid. The event will still begin and end on the historic and transformed Alameda Point, with a kids run, 5k, 10k and revamped Half Marathon that will...
Corrigan Sports makes the process easy from registration to race day, and the people of Oakland make you feel welcome from start to finish.
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