California Half Marathons By City • By Date
Each half marathon that takes place in California is listed below, and when you click the link you’ll find info for each race — what the course is like and a map of the route, the elevation change, whether it’s fast and flat or hilly and challenging, how to sign up, and more.
You’ll also find contact info if you’re having problems with your registration or need to contact the race directors.
2021 calendar of California half marathons
Agoura Hills
The Great Race of Agoura Hills Half Marathons, 10K & 5K
Alameda
See Jane Run Women’s Half Marathon & 5K – San Francisco Bay Area
American Canyon
Lynch Canyon Trail Run Half Marathon, 10K & 5K
Anaheim
Disney Tinker Bell Half Marathon & Never Land 5K
Antioch
Drag-N-Fly Trail Half Marathon, 10K & 5K
Apple Valley
Mojave Narrows Regional Park Half Marathon, 5K & 10K
Aptos
Forest of Nisene Marks Marathon, Half Marathon & 5K
Dirt Inspires™ Women’s Trail Half Marathon
Arcata
Humboldt Bay Marathon & Half Marathon
Avalon
Catalina Island Conservancy Half Marathon
Catalina Island Eco Marathon, Half Marathon & 10K
Azusa
Revel Canyon City Marathon & Half Marathon
Bakersfield
Bakersfield Track Club’s A Riverbed Runs Through It Half Marathon & 5K
Berkeley
Berkeley Half Marathon, 10K & 5K
Berkeley Trail Adventure Half Marathon, 10K, 35K & 50K
Big Sur
Big Sur Trail Marathon, Half Marathon & 5-Mile Run
Borrego Springs
Borrego Springs Half Marathon, Quarter Marathon & Fun Walk
Brentwood
Los Vaqueros Tarantula Run Half Marathon, 10K & 5K
Burlingame
Divas Half Marathon & 5K in San Francisco Bay
Calistoga
Napa Valley Harvest Half Marathon, 10K & 5K
Napa Valley Silverado Half Marathon & 5K
Napa Valley Trail Marathon, Half Marathon & 10K
Napa Wine Country Marathon, Half Marathon & 10K
Camarillo
Camarillo Half Marathon, 5K & 10K
Harvest Half Marathon, 10K & 5K
Holly Jolly Half Marathon, 5K & 10K
Campbell
ZombieRunner Halloween Marathon, Half Marathon & 5-Mile
Camp Pendleton
Camp Pendleton Heartbreak Ridge Half Marathon
Castro Valley
Bad Bass Half Marathon, 10K & 5K
Brazen New Year’s Day Half Marathon, 10K & 5K
Brazen New Year’s Eve Half Marathon, 10K & 5K
Lake Chabot Trail Challenge Half Marathon & 5K
Catalina Island
Chico
Almond Bowl Half Marathon, Relay & 5K
Bidwell Classic Half Marathon & 5K
Hooker Oak Trail Half Marathon
Chino
Ayala Park Marathon, Half Marathon & 50-Mile Run
Clarksburg
Paul Reese Memorial Clarksburg Country Run
Clayton
Diablo Trail Marathon, Half Marathon, 50K, 4 & 10-Miler
Cloverdale
Cloverdale Harvest Marathon, Half Marathon & 10K
Cool
Heart of Cool Trail Run Half Marathon, 10K & 5K
Corona
Billy Goat’s Half Marathon Hill Climb
Dana Point
Orangeman Running Series Salt Creek Half Marathon, 10K, 5K & 1K
Danville
Primo’s Run for Education Half Marathon
Davis
Davis Stampede Half Marathon, 10K & 5K
Davis Turkey Trot Half Marathon, 10K & 5K
Davisville Moo-nlight Half Marathon & 5K
Death Valley
Death Valley Borax Marathon, Half Marathon & 10K
Death Valley Half Marathon, 10K & 5K
Death Valley Trail Marathon & Half Marathon
Denair
Africa AIDS Run/Walk Half Marathon & 5K
Desert Hot Springs
Dog Valley
Dog Valley Dog Marathon & Half Marathon
Dove Canyon
Run The Dove Marathon & Half Marathon
El Cajon
St. Patrick’s Day Half Marathon
El Sobrante
Fall Showdown Trail Half Marathon, 5-Mile & 5K
Wildcat Half Marathon, 10K & 5K
Elk Grove
Running of the Elk Half Marathon, Relay & Thrive 5K
Encinitas
Escondido
Safari Park Half Marathon & 5K Family Fun Walk
Exeter
Fallbrook
Fairfield
Fairfield Running Festival Half Marathon, 10K, 5K & Kids’ Half-Mile
Folsom
Folsom Blues Breakout 13.1, Relay & 5K
Fontana
Fontana Days Run Half Marathon
Fountain Valley
Fishbowl Half Marathon, 10K & 5K
Fremont
Coyote Hills Half Marathon, 10K & 5K
Mermaid Run East Bay Half Marathon, 5K, 10K & Sirena 18-Mile
Quarry Turkey Half Marathon, 10K & 5K
Western Pacific Marathon, Half Marathon, 10K & 5K
ZombieRunner Quarry Lakes Run Marathon, Half Marathon, 10K & 5K
Zoom Quarry Lakes Half Marathon, 10K & 5K
Fresno
California Classic Half Marathon, Relay & 5K
Two Cities Marathon & Half Marathon
Wascally Wabbit Half Marathon & 2-Mile Run/Walk
Granite Bay
The Lost Trail Half Marathon Challenge & 5K Run/Walk
Tough As Granite Half Marathon, 10K & 5K Trail Run
Greenville
Running with the Bears Marathon, Half Marathon & 10K
Guadalupe
Salad Bowl Festival Half Marathon & 5K
Half Moon Bay
Half Moon Bay International Marathon & Half Marathon
Pillar Point Half Marathon, 10K & Family Fun Runs
Hanford
Hanford Half Marathon & 5K Fun Run
Healdsburg
Events With Sole Wine Country Marathon & Half Marathon
Healdsburg Wine Country Half Marathon
Water to Wine Half Marathon & Alderbrook 3-Mile Run
Highland
Highland Family YMCA Half Marathon, 10K & 5K
Huntington Beach
Love Your Heart Marathon & Half Marathon
Surf City USA Marathon, Half Marathon & 5K
Irvine
Cinco de Mayo Half Marathon, 10K, 5K, 1K & Bike Tour
La Jolla
La Jolla Half Marathon & La Jolla Shores 5K
Laguna Hills
City of Laguna Hills Memorial Half Marathon & 5K
Lake Hughes
Leona Valley Trail Races Marathon, Half Marathon, 10K & 5K
Lake Tahoe
Cal-Neva Half Marathon & Nevada Half Marathon
Lake Tahoe Marathon & Half Marathon
Las Flores
California Gold Rush Marathon & Half Marathon
Livermore
Grape Stomp Half Marathon, 10K & 5K
Lodi
Avenue of the Vines Half Marathon
Loma Linda
Lopers Club Holiday Classic Half Marathon & 5K
Lompoc
Valley of the Flowers Half Marathon
Long Beach
Hugs & Kisses Marathon & Half Marathon
Long Beach International Marathon, Half Marathon & 5K
Marina’s Long Beach Marina Marathon & Half Marathon
Rockin’ The Marina Marathon & Half Marathon
Los Angeles
Griffith Park Trail Half Marathon
Hollywood Half Marathon, 5K & 10K
Operation Jack Marathon, Half Marathon & 5K
Rock & Roll Los Angeles Half Marathon
Run to Remember Half Marathon & 10K
Women Run LA Half Marathon, 10K & 5K
Los Gatos
Go Green St. Patrick’s Day Half Marathon, 10K & 5K
Zombie Runner Vasona Lake Run Half Marathon & 5-Mile Run
Sierra Azul Half Marathon Challenge & 10K Run
The Jungle Run Half Marathon & 10K
Malibu
Malibu International Marathon & Half Marathon
Mammoth Lakes
Quake & Shake 10K & Half Marathon
Martinez
Bear Creek Trail Half Marathon, 10K & 5K
Menifee
Modesto
Modesto Marathon, Half Marathon & 5K
Modesto Midnight Half Marathon
Montecito
Run Montecito Half Marathon, 10K, 5K & Kids Mile
Monterey
Morgan Hill
Morgan Hill Half Marathon & 5K
Mountain View
Sankara iWalk Half Marathon, 10K & 5K
Napa
Napa-to-Sonoma Wine Country Half Marathon
Napa Valley Stomp Trail Half Marathon, 10K & 5K
Newport Beach / Costa Mesa
OC Marathon, Half Marathon, 5K & Kids Run
Oakland
Big Trees Trail Run Half Marathon, 10K, 30K & 50K
Canyon Meadow Marathon, Half Marathon, 30K, 50K & 5-Miler
Cinderella Trail Run Marathon, Half Marathon, 10K & 50K
Cinderella Trail Run Half Marathon (Summer)
Hope in Motion Half Marathon, 10K & 5K
Oakland Redwoods Half Marathon, 10K & 5K
Oakland Running Festival Marathon, Half Marathon, Relay & 5K
Ojai
Lake Casitas Half Marathon & 5K Run/Walk
Mountains 2 Beach Marathon & Half Marathon
Olympic Valley
Squaw Valley Half Marathon & Run to Squaw 8-Miler
Ontario
Guns ‘N Hoses Half Marathon & 5K
Oxnard
Santa To The Sea Half Marathon, 5K & Relay
Wounded Warrior Half Marathon, 5K & Military Mile
XTERRA Point Mugu Xduro Trail Run
Pacifica
Pacifica Summit Run Half Marathon, 10K, 30K & 50K
Palm Springs
Pasadena
Pasadena Marathon, Half Marathon & 5K
Rock & Roll Pasadena Half Marathon
Paso Robles
Paso Robles Harvest Half Marathon & 5K
Wine Country Runs Half Marathon & 5K
Pebble Beach
The Half Marathon at Pebble Beach, 10K & 5K
Pescadero
Petaluma
Pine Ridge
Pinole
Nitro Trail Half Marathon, 10K & 5K
Placerville
Placerville’s Historic El Dorado Trail Half Marathon, 10K & 5K
Pleasanton
Pleasanton Half Marathon & Family Run
Pleasanton Run for Education Half Marathon & 5K
Pollock Pines
Run on the Sly Trail Half Marathon, 8-Mile, 20-Mile & 50K
Pomona
Five Cities Marathon, Half Marathon, 10K & 5K
Rancho Cordova
Rancho Palos Verdes
Lexus LaceUp Palos Verdes Half Marathon, 10K & 5K
Palos Verdes Half Marathon & 5K Run/Walk
Rancho Santa Fe
San Dieguito Half Marathon & 5K
Redding
Redlands
Run-Through-Redlands Half Marathon, 10K & 5K
Redwood City
OktobeRun Half Marathon & 5K Run/Walk
Skyline Ridge Half Marathon & 10K
Woodside Ramble Half Marathon, 10K, 35K & 50K
Reseda
Richmond
Wildcat Half Marathon, 10K & 5K
Zoom Point Pinole Half Marathon, 10K & 5K
Ridgecrest
Ridgecrest Run for the Fund Half Marathon, 10K & 5K
Riverside
Citrus Heritage Run Half Marathon & 5K
Lexus LaceUp Riverside Half Marathon, 10K & 5K
Mission Inn Run Half Marathon, 10K, 5K & Kids Run
Peppermint Ridge Half Marathon, 5K & 1K
Roseville
Whole Foods Running School Fun Run Half Marathon, 10K & 5K
Sacramento
American River Parkway Half Marathon & 5K
River City Marathon, Half Marathon, 10K & 5K
Run The River Marathon, Half Marathon, Ultramarathon & Relay
Urban Cow Half Marathon, Relay & 5K
San Diego
America’s Finest City Half Marathon & 5K
Carlsbad California Marathon & Half Marathon
Girls on the Go Half Marathon, 10K & 5K
Kaiser Permanente Thrive Half Marathon & 5K
Mermaid Half Marathon San Diego, 10K & 5K
Peace-Love-Run San Diego Half Marathon, 10K & 5K
San Diego Beach & Bay Half Marathon, 5K & 5K
San Diego Holiday Half Marathon
Rock & Roll San Diego Marathon & Half Marathon
USA Half Marathon Invitational
Women’s Running San Diego Half Marathon & 5K
Wild Horse Trail Half Marathon & 10K
San Dimas
Girls on the Go San Dimas Half Marathon, 10K & 5K
Spooktacular Los Angeles Half Marathon, 10K & 5K
San Francisco
Divas Half Marathon in San Francisco Bay
Giant Race Half Marathon, 10K & 5K
Golden Gate Headlands Half Marathon
Golden Gate Trail Half Marathon (Summer)
Kaiser Permanente Half Marathon
Lake Merced Half Marathon & 4.5-Mile Run
Nike Women’s Half Marathon San Francisco
The North Face Endurance Challenge Trail Run Half Marathon
Rock ‘n’ Roll San Francisco Half Marathon
Salomon CITYTRAIL Half Marathon, 10K & 5K
Biofreeze San Francisco Marathon, Half Marathons & 5K
US Half Marathon 2 – “The Other Half”
Virgin Sport SF Bay Half Marathon
ZombieRunner San Francisco Run Half Marathon & 10K
San Jacinto
Diamond Valley Lake Marathon, Half Marathon & 5K
San Jose
Hellyer Half Marathon, 10K & 5K
National Veterans Day Run Half Marathon
New Almaden Haciendas Hills Half Marathon, 10K & 5K
Northern California Marathon & Half Marathon
The Metro Silicon Valley Marathon & Half Marathon
Quicksilver Challenge Half Marathon, 10K & 5K
Race to the End of Summer Half Marathon, 10K & 5K
San Jose Rock & Roll Half Marathon
Santa Teresa County Park – King Richard Annual Half Marathon, 10K & 5K
Trail Hog Half Marathon, 10K & 5K
Vibha Dream Mile Half Marathon, 10K & 5K Run/Walk
Zoom Turkey Trot Half Marathon, 10K & 5K
San Leandro
Bay Breeze Half Marathon, 10K & 5K
Summer Breeze Half Marathon, 10K & 5K
San Luis Obispo
San Luis Obispo Marathon, Half Marathon & 5K
San Mateo
Run With The Jets Half Marathon, 10K & 5K
San Miguel
Buzz Marathon, Half Marathon, 5K & 1-Mile Run
San Pedro
Conquer the Bridge Half Marathon & 5.3-Mile Race
San Rafael
China Camp Challenge Half Marathon, 10K & 5K
Honey Badger Half Marathon, 10K & 5K
Marin County Half Marathon, 5K & 10K
San Ramon
Rocky Ridge Half Marathon, 10K & 5K
Santa Barbara
The Santa Barbara Half Marathon & 5K
Santa Barbara News-Press Half Marathon
Santa Barbara Red Rock Marathon, Half Marathon & 50-Mile
Santa Clarita
Santa Clarita Marathon & Half Marathon
Sugar Daddy Half Marathon, 10K & 5K
Santa Cruz
San Lorenzo River Marathon, Half Marathon, 10K, 30K & 50K
Santa Cruz Half Marathon & 10K
Santa Cruz Mountains Trail 10K, 21K, 29K & 50K
Surfer’s Path Marathon & Capitola Half Marathon
Santa Rosa
Annadel Half Marathon & Kathy’s Race 5K
The Santa Rosa Marathon & Half Marathon
Santa Ynez
Santa Barbara Wine Country Half Marathon
Saratoga
Sanborn Park Trail Challenge Half Marathon, 9-Mile & 4.2-Mile
Summit Rock Half Marathon, 10K & 5K
Trail Quake Half Marathon, 10K & 5K
Sausalito
Golden Gate Trail Run Half Marathon
Rodeo Beach Rumble Half Marathon, 50K, 30K & 8K
Simi Valley
Arroyo Creek Half Marathon, 5K & 10K
Soledad
South El Monte
Going Bananas Marathon & Half Marathon
Run Deo Run 45K & Half Marathon
Stinson Beach
Muir Woods Marathon, Half Marathon & 7-Mile
Rabbit Chase Race Half Marathon, 10K & 30K
Steep Ravine Trail Run Marathon, Half Marathon, 30K, 50K & 7-Mile
Stinson Beach Marathon, Half Marathon & 7-Mile
Stockton
St. Joseph’s Half Marathon & 5K
Sunnyvale
Sevathon Half Marathon, 10K & 5K
Tahoe City
Burton Creek Trail Run Half Marathon, 50K, 12K & 6K
Temecula
SoCal Wine Country Women’s Half Marathon
Temecula Valley Half Marathon & 5K
Temecula Wine Country Half Marathon
Thousand Oaks
XTERRA Boney Mountain Xduro Trail Half Marathon
Tiburon
Angel Island Half Marathon & 5-Mile
Romancing the Island Half Marathon & 10K
Truckee
Truckee Marathon & Half Marathon
Truckee Running Festival Waddle Ranch Trail Half Marathon, 10K & 5K
Vacaville
California Run Festival Marathon, Half Marathon, 50K, 10K & 5K
Lagoon Valley Trail Half Marathon, 10K, 5K & 1/2-Mile
Sunrise Run Half Marathon, 10K, 5K & Kids’ Runs
Vallecito
Hernia Hill Half Marathon, 10K & 5K
Ventura
Half Marathon of the Harbors & 5K
Mountains 2 Beach Marathon & Half Marathon
Seaside Half Marathon, 10K & 5K
Shoreline Half Marathon, 10K & 5K
Surfer’s Point Marathon, Half Marathon, 10K & 5K
Ventura Hammer Half Marathon & 5K
Ventura Marathon, Half Marathon, 5K & Bike Rides
Visalia
End of the Trail Half Marathon
Vista
Vista Beer Run Half Marathon & 5K
Walnut Creek
Diablo Summit Stomp Half Marathon, 30K, 10K & 5K
Diablo Trails Challenge Half Marathon, 10K, 5K & 50K
Walnut Creek Half Marathon, Relay & 5K
Weed
Weed Run for Schools Half Marathon, 10K & 5K
Weott/Eureka
Avenue of the Giants Marathon, Half Marathon & 10K
Humboldt Redwoods Marathon & Half Marathon
Westwood
Bizz Johnson Trail Express Half Marathon
Windsor
Windsor Green Half Marathon, 10K & 5K
Woodside
Woodside Half Marathon & 5-Mile Run
Woodside King’s Mountain Half Marathon & 5-Mile Run
