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Best Costa Mesa, California Half Marathon Races

View some of the best Half Marathon races in Costa Mesa, 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.

    • 1/2M

    Tustin, CA

    7.66 miles away

    I'm Attending

    Dinosaur Dash Nov. 1, 2020

    Dino Dash, November 1, 2020 It's an Orange County tradition! Now in its 30th year, the Dinosaur Dash is a community run, walk, and bike event benefiting the Tustin Public Schools Foundation. There's something for everyone - a 2k fun run, chip-tim...

    • 1/2M

    Avalon, CA

    32.97 miles away

    I'm Attending

    Catalina Island Half-Marathon & 10K

    California's ultimate trail half-marathon will challenge you with climbs, peaks and vistas unlike any you will experience at any other half marathon.   You will start in the town of Avalon, run past the Wrigley Mansion, and then enter the Interior...

    • 1/2M

    Avalon, CA

    32.97 miles away

    I'm Attending

    Catalina Island Half-Marathon & 10K

    California's ultimate trail half-marathon will challenge you with climbs, peaks and vistas unlike any you will experience at any other half marathon.   You will start in the town of Avalon, run past the Wrigley Mansion, and then enter the Interior...

    • 1/2M

    Long Beach, CA

    14.24 miles away

    I'm Attending

    2020 Holiday Half Marathon & 5K/10K

    The 2020 Virtual Holiday Running Festival will take place on December 12, 2020.  Since we will not be able to host a live event this year we are making the event virtual.  Don't worry will still be bringing you the holiday spirit to your house.  E...

    • 1/2M

    Huntington Beach, CA

    9.71 miles away

    I'm Attending

    Run In The New Year 5k/10K/Half Marathon

    2019 Photos: https://captivatingsportsphotos.shootproof.com/gallery/19ny5k/ Write a New Year resolution on the back of your bib and RUN, JOG, or WALK it into the new year. Get in gear for your NEW YEAR.     IT's a beachy, party, New Year's Theme...

    • 1/2M

    Huntington Beach, CA

    9.71 miles away

    I'm Attending

    Run In The New Year 5k/10K/Half Marathon

    2019 Photos: https://captivatingsportsphotos.shootproof.com/gallery/19ny5k/ Write a New Year resolution on the back of your bib and RUN, JOG, or WALK it into the new year. Get in gear for your NEW YEAR.     IT's a beachy, party, New Year's Theme...

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