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.
2022-2023 calendar of California half marathons
Agoura Hills
The Great Race of Agoura Hills Half Marathons, 10K & 5K
Agua Dulce
Spacerock Trail Race Half Marathon 10k & 5k
Angel Island SP
Angel Island Half Marathon & 5-Mile
Romancing the Island Half Marathon & 10K
Auberry
San Joaquin River Trail Half Marathon & 10K
Auburn
Knickerbocker Canyon Trail Run
No Hands Trail Run 50k 35k Half Marathon & 8k
Bakersfield
Bakersfield Marathon Half Marathon 10K & 5K
Bass Lake
Berkeley
Berkeley Half Marathon, 10K & 5K
Grizzly Peak 5-k Marathon 30k Half Marathon & 10k
Big Bear
Revel Big Bear Marathon & Half Marathon
Big Sur
Big Sur Trail Marathon, Half Marathon & 5-Mile Run
Brea
Butte Meadows
Loco Go Big or Go Home Challenge
Calistoga
Napa Valley Endurance Run 50k 35k & Half Marathon
Napa Valley Marathon & Half Marathon
Napa Valley Trail Marathon, Half Marathon & 10K
Napa Wine Country Marathon, Half Marathon & 10K
Camarillo
Camarillo Marathon, Half Marathon, 10K & 5K
Holly Jolly Half Marathon, 5K & 10K
Camp Pendleton
Camp Pendleton Heartbreak Ridge Half Marathon
Carlsbad
Carlsbad Marathon Half Marathon & 5K
Castro Valley
Brazen New Year’s Day Half Marathon, 10K & 5K
Lake Chabot 50k Marathon 30k Half Marathon & 5M
Lake Chabot Trail Challenge Half Marathon & 5K
Rock the Loch Half Marathon, 10K & 5K
SPASM Lake Chabot 50k Marathon 30k & Half Marathon
Chico
Clayton
Diablo Trail Marathon, Half Marathon, 50K, 4 & 10-Miler
Mt. Diablo Trail Run 50k 25k Half Marathon & 10k
Cloverdale
Cloverdale Harvest Marathon, Half Marathon & 10K
Coloma
California Gold Rush Trail Run
California Gold Rush Trail Run Half Marathon 15k 10k & 5k
Concord
Coronado
Davis
Davis Stampede Half Marathon, 10K & 5K
Davisville Moo-nlight Half Marathon & 5K
Death Valley
Death Valley Borax Marathon, Half Marathon & 10K
Del Mar
El Dorado Hills
Folsom Lake Falcon Crest Trail Run
Escondido
Del Dios Half Marathon 10K & 5K,
Exeter
Folsom
Folsom Lake Sweetwater Trail Run
Fontana
Fontana Days Run Half Marathon
Fremont
Coyote Hills Half Marathon, 10K & 5K
Zoom Firecracker Half Marathon 10k & 5k
Fresno
California Classic Half Marathon, 10K & 5K
Friant
Ruth McKenzie Preserve Half Marathon
Goleta
Granite Bay
The Lost Trail Half Marathon Challenge & 5K Run/Walk
Greenville
Running with the Bears Marathon, Half Marathon & 10K
Huntington Beach
Run in the New Year Half Marathon 10K & 5K
SOCAL River Marathon Half Marathon 10K & 5K,
Surf City USA Marathon, Half Marathon & 5K
Irvine
Reaching for the Cure Half Marathon
Super Sunday 5k Half Crazy Half Marathon
Joshua Tree
Kirkwood
Kirkwood Thunder Mountain Trail Challenge
La Jolla
La Jolla Half Marathon & La Jolla Shores 5K
San Diego Holiday Half Marathon
Laguna Hills
Laguna Hills Memorial Day Half Marathon, 10K & 5K
Livermore
Lone Pine
John Wayne Grit Series – Lone Pine Half Marathon & 10k
Long Beach
Long Beach International Marathon, Half Marathon & 5K
Los Angeles
Finish the Run – Griffith Park Half Marathon 10k & 5k
Griffith Park Trail Run 50k Marathon & Half Marathon
Operation Jack Marathon, Half Marathon & 5K
Run to Remember Half Marathon & 10K
Los Osos
Montana de Oro Trail Run 50k 36k Half Marathon & 12k
Madera
Tesoro Viejo Spring Classic Half Marathon
Malibu
Malibu International Marathon & Half Marathon
McFarland
Mendocino
Mill Valley
Golden Gate Headlands Marathon Half Marathon & 10k
Mt. Tam Wild Boar Half Marathon
Modesto
Modesto Marathon, Half Marathon & 5K
Peace Officer Memorial Run Half Marathon 5k 1M & Relay
Monterey
Morgan Hill
Rancho Canada Del Oro Trail Challenge
Napa
Napa Valley Endurance Run 50k 35k & Half Marathon
Napa Valley Marathon & Half Marathon
Napa Valley Trail Marathon Half Marathon & 10K
Napa Valley Women’s Half Marathon
Napa Wine Country Marathon Half Marathon & 10K
WineShine Half Marathon & 3.9-Miler
Newport Beach / Costa Mesa
OC Marathon, Half Marathon, 5K & Kids Run
Nipton
Southwest Series Marathon Half Marathon 10K & 5K – Day 6
Oakland
Cinderella Trail Run Marathon, Half Marathon, 10K & 50K
Oakland Redwoods Half Marathon, 10K & 5K
Oakland Running Festival Marathon, Half Marathon, Relay & 5K
Redwood 50k Marathon 30k Half Marathon & 5M,
Redwood Trail Run (Summer) 50k Marathon 30k Half Marathon & 5M
Olympic Valley
Olympic Valley Half Marathon & 8-Miler
Orinda
Tilden Trail Marathon Half Marathon & 10k
Oxnard
Santa To The Sea Half Marathon, 5K & Relay
Pacifica
Pacifica Summit Run Half Marathon, 10K, 30K & 50K
Palm Desert
Palo Alto
Horseshoe Lake 5-k Marathon Half Marathon & 5M
Pasadena
Pinole
Nitro Trail Half Marathon, 10K & 5K
Pioneertown
John Wayne Grit Series – Pioneertown Half Marathon & 10k
Placerville
Placerville’s Holiday Jingle and Mingle Run Half Marathon 15k 10k & 5k
Pollock Pines
Trail Run at Sly Park (August)
Trail Run at Sly Park Marathon Half Marathon 50K 18M 8.5M 10K & 5K
Redlands
Run-Through-Redlands Half Marathon, 10K & 5K
Richmond
Victory Race Half Marathon 10k & 5k
Riverside
Citrus Heritage Run Half Marathon & 5K
Santa Hustle Roseville Half Marathon & 5K
Sacramento
Salinas
Spartan Trail Half Marathon 50K & 10K – Monterey
San Diego
America’s Finest City Half Marathon & 5K
Black Mountain 50k 25k & Half Marathon
Mermaid Half Marathon San Diego
Rock ‘n’ Roll San Diego Marathon & Half Marathon
San Diego Beach & Bay Half Marathon, 5K & 5K
San Diego Holiday Half Marathon
San Dimas
Holiday Running Festival Half Marathon
San Francisco
Kaiser Permanente Half Marathon
San Francisco 52.4M Marathon Half Marathon 5k & Relay
Zoom San Francisco Half Marathon 10k & 5k
San Jose
Hacienda Hills Run Marathon Half Marathon 50K 10K 5K & 9M
Mt. Umunhum Trail Conquest Marathon 30k Half Marathon 7M & 5k
San Jose Rock & Roll Half Marathon
Santa Teresa County Park – King Richard Annual Half Marathon, 10K & 5K
Zoom Turkey Trot Half Marathon, 10K & 5K
ZombieRunner Halloween Marathon Half Marathon 10k & 5k
San Juan Bautista
Rotary Mission Ten Half Marathon 10M & 5k
San Leandro
Bay Breeze Half Marathon, 10K & 5K
Summer Breeze Half Marathon, 10K & 5K
San Miguel
Buzz Marathon, Half Marathon, 5K & 1-Mile Run
San Rafael
China Camp Challenge Half Marathon, 10K & 5K
China Camp Trail Run Half Marathon 10k & 5k,
Santa Barbara
Mary Jane Race Half Marathon 10k & 5k
Santa Barbara Half Marathon & 5k
Santa Clarita
Santa Clarita Marathon & Half Marathon
Sugar Daddy Half Marathon, 10K & 5K
Valencia Trail Race Half Marathon 50K & 10K
Santa Cruz
San Lorenzo River Marathon, Half Marathon, 10K, 30K & 50K
Surfer’s Path Marathon & Capitola Half Marathon
Santa Margarita
San Luis Obispo Spartan Trail 50k Half Marathon & 10k
Santa Rosa
The Santa Rosa Marathon & Half Marathon
Santa Venetia
Rattlesnake Ramble Half Marathon 10k & 5k
Saratoga
Sanborn Park Trail Challenge Half Marathon, 9-Mile & 4.2-Mile
Saratoga to the Sea Trail Run Half Marathon & 8k
Trail Quake Half Marathon, 10K & 5K
Sausalito
Golden Gate (Summer) 50k Marathon 30k Half Marathon & 5M
Golden Gate Trail Run Half Marathon (Winter)
Rodeo Beach Rumble 50k 30k Half Marathon & 8k
Simi Valley
Arroyo Creek Half Marathon, 5K & 10K
Sonoma
Napa to Sonoma Wine Country Half Marathon
South Lake Tahoe
Lake Tahoe Marathon & Half Marathon Weekend
Stinson Beach
Muir Woods Marathon, Half Marathon & 7-Mile
Table Rock Trail Run Half Marathon 30K & 10K
Susanville
Bizz Johnson Trail Marathon, Half Marathon, 50K & 10K
Tahoe City
Burton Creek Trail Run Half Marathon, 12K & 6K
Tarzana
Valley Crest Half Marathon & 10K
Thousand Oaks
Boney Mountain Trail Runs Half Marathon & 6k
Tiburon
Angel Island Half Marathon & 5-Mile
Angel Island Half Marathon & 10k
Truckee
Truckee Running Festival Half Marathon 10K & 5K
Ventura
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 Marathon, Half Marathon, 5K & Bike Rides
Visalia
End of the Trail Half Marathon
Weott/Eureka
Avenue of the Giants Marathon, Half Marathon & 10K
Humboldt Redwoods Marathon & Half Marathon
Windsor
Windsor Run & Wine Half Marathon 10k & 5k
Woodside
Crystal Springs 50k Marathon 22M Half Marathon & 5M
