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Best San Mateo, Ca Half Marathon Races

View some of the best Half Marathon races in San Mateo, 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

    Castro Valley, CA

    16.11 miles away

    I'm Attending

    Redtail Ridge - Lake Chabot

    Lake Chabot Regional Park was established in the 1960s after the reservoir had been closed to recreational use for 91 years. Today, the lake remains as an emergency water supply and is open to fishers and boaters, as it is filled with trout, catfi...

    • 1/2M

    Livermore, CA

    31.49 miles away

    I'm Attending

    Livermore Valley Half Marathon

    / 3 RaceMobbers Scheduled

    Welcome to the 11th Annual Livermore Valley Half Marathon, 5K & Kids Festival! Get ready for picture perfect, postcard views on our 'Best of the Bay' voted course and famed Wine, Beer and Music Festival. Experience hyper-local feels in Downtow...

    • 1/2M

    Oakland, CA

    19.36 miles away

    I'm Attending

    Redwood (Spring) Trail Run

    Rain or Shine! The course travels through beautiful Redwood Regional Park. Enjoy the spectacular views along the East Ridge and West Ridge trails and wind through tall redwoods on the popular Stream and Bridle trails. (Distances are accurately mea...

    • 1/2M

    Woodside, CA

    8.99 miles away

    I'm Attending

    Woodside Crossover 2022

    The forested slopes and steep, cool canyons of Huddart Park and Purisima Creek Redwoods Open Space Preserve comprise a trail running paradise within the heart of the San Francisco Peninsula. Participants will enjoy the beautiful trails under the c...

    • 1/2M

    Castro Valley, CA

    15.96 miles away

    I'm Attending

    SPASM Lake Chabot Trail Run

    The course starts at the Marina and travels around the popular Lake Chabot reservoir and surrounding hills. Great course for first-time trail runners! (Distances are accurately measured using a Rolatape® surveyor's measuring wheel.)

    • 1/2M

    San Rafael, CA

    30.45 miles away

    I'm Attending

    Marin County Triathlon

    Welcome to the Marin County Triathlon! DISTANCES: (ALL COURSES) TRIATHLON - Olympic Distance = 1,500 Meter Swim / 40K Bike / 10K RunTRIATHLON - Sprint Distance = 500 Meter Swim / 20K Bike / 5K Run SCHEDULE: 7:00 am – gates open to the park8:30 am ...

    • 1/2M

    Fremont, CA

    13.76 miles away

    I'm Attending

    Fiercelifit Half Marathon, 10K & 5K

    / 4 RaceMobbers Scheduled

    One of the most significant and yet often overlooked landmarks of Fremont is the mighty Dumbarton. Get yourself into gear for the 2024 FierceliFit race, starting at the Dumbarton Quarry. The same hills and bay view you know and love with a histori...

    • 1/2M

    Sunnyvale, CA

    19.41 miles away

    I'm Attending

    TVNO - Tamil Vetri Nadai Odu - SFBATM Racing

    San Francisco Bay Area Tamil Manram, a non-profit organization that has been serving the community for the past 44 years, since 1980. Our organization is dedicated to preserving and promoting Tamil culture, language, and traditions. "TVNO -Tamil V...

    • 1/2M

    San Jose, CA

    33.61 miles away

    I'm Attending

    Beer City Half San Jose

    Join us at Almaden Lake Park for the Beer City Half in San Jose, the third stop in the Beer City Half Series. The Beer City Half San Jose include a half marathon, 10k, 5k, the Beer Stroll, Race the Rex beer mile and the Questicorn kids fun/walk. T...

    • 1/2M

    Fremont, CA

    13.65 miles away

    I'm Attending

    Vibha Bay Area DreamMile 2025

    Vibha Bay Area's The Dream Mile Kid's 5K / 5K / 10K / Half Marathon /Virtual   2100 ISHERWOOD WAY, FREMONT, CA, 94536 (USA) SUNDAY, JUNE 1, 2025 Flat courses with minimal elevation changes. All runners will receive a t-shirt and a finisher'...

    • 1/2M

    Oakland, CA

    19.34 miles away

    I'm Attending

    Redwood (Summer) Trail Run

    The course travels through beautiful Redwood Regional Park. Enjoy the spectacular views along the East Ridge and West Ridge trails and wind through tall redwoods on the popular Stream and Bridle trails. (Distances are accurately measured using a R...

    • 1/2M

    Fremont, CA

    17.38 miles away

    I'm Attending

    Beer City Half SLAM

    Join us for the final race in the Beer City Half Grand Slam, as athletes vie for the Golden Growler in this Championship event. August is also National Clear the Shelters Month and we're working with Pets in Need to support animal rescue and adopt...

    • 1/2M

    Woodside, CA

    8.87 miles away

    I'm Attending

    SPASM Crystal Springs Trail Run

    Experience the towering redwoods, lush ferns, and beautiful trails through Huddart Park, King's Mountain and Bear Gulch. (Distances are accurately measured using a Rolatape® surveyor's measuring wheel.)

    • 1/2M

    Castro Valley, CA

    15.96 miles away

    I'm Attending

    Lake Chabot Trail Run

    The course starts at the Marina and travels around the popular Lake Chabot reservoir and surrounding hills. Great course for first-time trail runners! (Distances are accurately measured using a Rolatape® surveyor's measuring wheel.)

    • 1/2M

    Fremont, CA

    13.65 miles away

    I'm Attending

    ZombieRunner Quarry Lakes

    The course starts in the scenic Quarry Lakes Regional Recreation area and follows the popular Alameda Creek Trail up to the mouth of Niles Canyon. All courses are flat and fast!   The Half Marathon (CA19047RS) and Marathon (CA18047RS) courses...

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