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Popular Orinda, Ca Half Marathon Races

View some of the best Half Marathon races in Orinda, Ca! 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

    Clayton, CA

    13.32 miles away

    I'm Attending

    Mount Diablo Trail Run - "When Hell Freezes Over"

    Welcome to winter madness on Mount Diablo. Enjoy Mt Diablo under cool temperatures "When Hell Freezes Over". There is no question that Mt Diablo represents the toughest challenge for any trail runner during the summer. Hopefully it snows. And, lik...

    • 1/2M

    Fremont, CA

    22.63 miles away

    I'm Attending

    Inaugural Fiercelifit Half Marathon & 10K

    Get ready to shred the trails of Coyote Hills, with the golden-brown hills on one side and the glistening ocean on the other at FierceliFit's Inaugural Half Marathon and 10K race! Enjoy a picturesque and yet challenging course designed by coaches ...

    • 1/2M

    San Jose, California

    40.55 miles away

    I'm Attending

    San Jose 8K & Half Marathon

    Join the Run Local community in taking on the classic 408K route or the new Half Marathon course with both events enjoying the unique Mariachi Mile and Santana Row finish line experience! Your Race Kit 🏅Medal: 5K, 10K & Kids Race 🎽 ...

    • 1/2M

    Castro Valley, CA

    12.01 miles away

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    2022 Lake Chabot Trail Challenge (Half Marathon & 5K)

    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...

    • 1/2M

    Napa, CA

    29.82 miles away

    I'm Attending

    2022 Napa Valley Women's Half Marathon & 5K

    The 3rd Annual Napa Valley Women’s Half Marathon and 5K will be held on March 20, 2022 starting and finishing at Oxbow Commons Park in the heart of the excitement that is Napa, California! The race course winds through the lush countryside past mu...

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