Upcoming half marathons in California. Use filters to quickly find races by month, city or race type.
More races: USA running calendar
Date Race Distance Location hf:tax:monthandyear hf:tax:city hf:tax:typerace 05/18/2024 Wildcat 10K, 13.1M, 5K El Sobrante CA 05-may el-sobrante-ca roadrace 05/18/2024 La Jolla Half Marathon and 5K 13.1M, 5K Del Mar CA 05-may del-mar-ca roadrace 05/25/2024 Fun in the Sun Half Marathon 10K, 13.1M, 15K, 5K Santa Monica CA 05-may santa-monica-ca roadrace 05/25/2024 Keep Going Run SAN FRANCISCO 10K, 13.1M, 5K San Francisco CA 05-may san-francisco-ca roadrace 05/25/2024 Run LA “City of Angels” 10K, 13.1M, 5K Santa Monica CA 05-may santa-monica-ca roadrace 05/25/2024 Run SACRAMENTO ‘City of Trees’ 10K, 13.1M, 5K Sacramento CA 05-may sacramento-ca roadrace 05/25/2024 Run SF “Golden Gate City” 10K, 13.1M, 5K San Francisco CA 05-may san-francisco-ca roadrace 05/25/2024 Armed Forces Half Marathon 13.1M Concord CA 05-may concord-ca roadrace 05/27/2024 Laguna Hills Memorial Day Half Marathon 10K, 13.1M, 5K Laguna Hills CA 05-may laguna-hills-ca roadrace 05/31/2024 Fontana Days Run Half Marathon 13.1M, 5K Fontana CA 05-may fontana-ca roadrace 06/01/2024 Cool Moon 100 Mile Endurance Run 100K, 100M, 11.5M, 13.5M, 25M, 50M, 5K Cool CA 06-june cool-ca trail 06/01/2024 Calero Trail Run – Summer 10K, 13.1M, 15K, 1M, 25K, 26.2M, 50K, 5K San Jose CA 06-june san-jose-ca trail 06/01/2024 The Loco Go Big or Go Home Challenge 100K, 100M, 10K, 13.1M, 50K, 5K Butte Meadows CA 06-june butte-meadows-ca trail 06/01/2024 Rock ‘n’ Roll San Diego Marathon 13.1M, 26.2M, 5K San Diego CA 06-june san-diego-ca roadrace 06/02/2024 San Jose 8K & Half Marathon 13.1M, 8K San Jose CA 06-june san-jose-ca roadrace 06/02/2024 San Jose Half Marathon 13.1M, 8K San Jose CA 06-june san-jose-ca roadrace 06/02/2024 Lake Chabot Trail Challenge 13.1M, 5K Castro Valley CA 06-june castro-valley-ca trail 06/08/2024 Trail Quake Half Marathon 10K, 13.1M, 5K Saratoga CA 06-june saratoga-ca trail 06/08/2024 Run Against Breast Cancer LOS ANGELES 10K, 13.1M, 5K Santa Monica CA 06-june santa-monica-ca roadrace 06/08/2024 Run Against Breast Cancer SACRAMENTO 10K, 13.1M, 5K Sacramento CA 06-june sacramento-ca roadrace 06/08/2024 Run Against Breast Cancer SAN DIEGO 10K, 13.1M, 5K San Diego CA 06-june san-diego-ca roadrace 06/08/2024 Change the World Run SAN FRANCISCO 10K, 13.1M, 5K San Francisco CA 06-june san-francisco-ca roadrace 06/08/2024 Change the World Run LOS ANGELES Santa Monica CA 06-june santa-monica-ca roadrace 06/08/2024 Change the World Run SACRAMENTO 10K, 13.1M, 5K Sacramento CA 06-june sacramento-ca roadrace 06/08/2024 Change the World Run SAN DIEGO 10K, 13.1M, 5K San Diego CA 06-june san-diego-ca roadrace 06/08/2024 Trailquake 10K, 13.1M, 5K Saratoga CA 06-june saratoga-ca roadrace 06/08/2024 Mt Umunhum Ultras 10K, 13.1M, 26.2M, 30K, 50K, 52M, 5K, 9M San Jose CA 06-june san-jose-ca trail 06/09/2024 Long Beach Classic Half and 5K 13.1M, 5K Long Beach CA 06-june long-beach-ca roadrace 06/15/2024 Fathers Day Half Marathon – Long Beach 10K, 13.1M, 15K, 5K Long Beach CA 06-june long-beach-ca roadrace 06/15/2024 Sugar Daddy Race 10K, 13.1M, 5K Santa Clarita CA 06-june santa-clarita-ca roadrace 06/22/2024 Black Mountain 50k 13.1M, 25K, 50K San Diego CA 06-june san-diego-ca trail 06/22/2024 Angel Island 5 Mile and Half Marathon 13.1M, 5M Tiburon CA 06-june tiburon-ca trail 06/23/2024 Arroyo Creek Half Marathon 10K, 13.1M, 5K Simi Valley CA 06-june simi-valley-ca roadrace 06/29/2024 Snails Keep MOVING Run LA 10K, 13.1M, 5K Pacific Palisades CA 06-june pacific-palisades-ca roadrace 06/29/2024 Sunset Marathon LOS ANGELES 10K, 13.1M, 5K Santa Monica CA 06-june santa-monica-ca roadrace 06/29/2024 Goleta Beach Half Marathon 10K, 13.1M, 5K Goleta CA 06-june goleta-ca roadrace 07/04/2024 July 4th Freedom Run LOS ANGELES 10K, 13.1M, 5K Santa Monica CA 07-july santa-monica-ca roadrace 07/04/2024 July 4th Freedom Run SAN FRANCISCO 10K, 13.1M, 5K San Francisco CA 07-july san-francisco-ca roadrace 07/04/2024 July 4th Freedom Run SACRAMENTO 10K, 13.1M, 5K Sacramento CA 07-july sacramento-ca roadrace 07/04/2024 July 4th Freedom Run SAN DIEGO 10K, 13.1M, 5K San Diego CA 07-july san-diego-ca roadrace 07/04/2024 Run SACRAMENTO ‘City of Trees’ SUMMER 10K, 13.1M, 5K Sacramento CA 07-july sacramento-ca roadrace 07/05/2024 Stars and Stripes Half Marathon – Santa Monica 10K, 13.1M, 15K, 5K Santa Monica CA 07-july santa-monica-ca roadrace 07/06/2024 Freedom Half Marathon 10K, 13.1M, 15K, 5K Long Beach CA 07-july long-beach-ca roadrace 07/06/2024 Zoom Firecracker Half Marathon 10K, 13.1M, 5K Fremont CA 07-july fremont-ca trail 07/06/2024 Rancho Hills Trail Run 10K, 10M, 13.1M, 26.2M, 30K, 50K, 5K Morgan Hill CA 07-july morgan-hill-ca trail 07/13/2024 San Lorenzo River 50k 10K, 13.1M, 26.2M, 30K, 50K Santa Cruz CA 07-july santa-cruz-ca trail 07/13/2024 The Peak 50k 13.1M, 26.2M, 50K Julian CA 07-july julian-ca trail 07/14/2024 Shoreline Marathon 10K, 13.1M, 5K Ventura CA 07-july ventura-ca roadrace 07/20/2024 Bad Bass 10K, 13.1M, 5K Castro Valley CA 07-july castro-valley-ca roadrace 07/20/2024 Napa to Sonoma Wine Country Half Marathon 13.1M, 5K Sonoma CA 07-july sonoma-ca roadrace 07/21/2024 San Francisco Marathon 10K, 13.1M, 1K, 26.2M, 52.4M, 5K San Francisco CA 07-july san-francisco-ca roadrace 08/03/2024 Hell of a Half Marathon 13.1M Exeter CA 08-august exeter-ca roadrace 08/03/2024 Kirkwood’s Ultras 100K, 13.1M, 25K, 26.2M, 46M, 50K Kirkwood CA 08-august kirkwood-ca trail 08/04/2024 Camarillo Marathon 10K, 13.1M, 26.2M, 5K Camarillo CA 08-august camarillo-ca roadrace 08/04/2024 Skyline 50K Endurance Run 13.1M, 50K Castro Valley CA 08-august castro-valley-ca trail 08/10/2024 Run Against Breast Cancer SAN FRANCISCO 10K, 13.1M, 5K San Francisco CA 08-august san-francisco-ca roadrace 08/10/2024 Run Against Breast Cancer SACRAMENTO 10K, 13.1M, 5K Sacramento CA 08-august sacramento-ca roadrace 08/10/2024 Bear Creek 10K, 13.1M, 5K Lafayette CA 08-august lafayette-ca trail 08/10/2024 Redwood Trail Run (Summer) 13.1M, 26.2M, 30K, 50K, 5M Oakland CA 08-august oakland-ca trail 08/10/2024 Bear Creek Half Marathon 10K, 13.1M, 5K Lafayette CA 08-august lafayette-ca trail 08/11/2024 Humboldt Bay Marathon 13.1M, 26.2M Eureka CA 08-august eureka-ca roadrace 08/11/2024 SAR Wild Run 10K, 13.1M, 5K Shaver Lake CA 08-august shaver-lake-ca trail 08/17/2024 Almaden Hills Trail Run 10K, 13.1M, 26.2M, 30K, 50K, 5K, 8M San Jose CA 08-august san-jose-ca trail 08/18/2024 San Francisco Giant Race 10K, 13.1M, 5K San Francisco CA 08-august san-francisco-ca roadrace 08/18/2024 Summer Dash Half Marathon 10K, 13.1M, 15K, 5K Long Beach CA 08-august long-beach-ca roadrace 08/18/2024 America’s Finest City Half Marathon 13.1M, 5K San Diego CA 08-august san-diego-ca roadrace 08/24/2024 Trail Run at Sly Park 10K, 13.1M, 18M, 26.2M, 50K, 5K, 8.5M Pollock Pines CA 08-august pollock-pines-ca trail 08/24/2024 Santa Rosa Marathon 10K, 13.1M, 26.2M, 5K Santa Rosa CA 08-august santa-rosa-ca roadrace 08/31/2024 Summer Day Half Marathon 10K, 13.1M, 15K, 5K Long Beach CA 08-august long-beach-ca roadrace 09/01/2024 Crystal Springs Summer Trail Run 13.1M, 26.2M, 35K, 50K, 8K Woodside CA 09-september woodside-ca trail 09/07/2024 The Groves Trail Run 13.1M, 50K Loma Mar CA 09-september loma-mar-ca trail 09/07/2024 Mendocino Running Festival 10K, 13.1M Mendocino CA 09-september mendocino-ca trail 09/08/2024 Diablo Trail Run 10M, 13.1M, 26.2M, 4M, 50K Clayton CA 09-september clayton-ca trail 09/07/2024 Stevens Creek Striders Reservoir Run 11K, 13.1M Cupertino CA 09-september cupertino-ca trail 09/14/2024 South Hills Single Track Trail Run 10K, 13.1M, 16M, 26.2M, 50K, 5K, 9M San Jose CA 09-september san-jose-ca trail 09/22/2024 Clo Cow Half Marathon 10K, 13.1M, 5K Petaluma CA 09-september petaluma-ca roadrace 09/28/2024 Arnold Rim Trail Endurance Runs 10K, 13.1M, 22M, 37M Arnold CA 09-september arnold-ca trail 09/28/2024 Pacifica Summit Run 10K, 13.1M Pacifica CA 09-september pacifica-ca trail 09/28/2024 Pacifica Summit Run 10K, 13.1M Pacifica CA 09-september pacifica-ca trail 10/05/2024 Pacific Beach Half Marathon & 5k 13.1M, 5K San Diego CA 10-october san-diego-ca roadrace 10/05/2024 Star City San Bruno Mountain Half Marathon 13.1M Brisbane CA 10-october brisbane-ca trail 10/05/2024 The Auburn Half Marathon 12K, 13.1M, 5K Auburn CA 10-october auburn-ca trail 10/05/2024 Urban Cow Weekend 13.1M, 5K Sacramento CA 10-october sacramento-ca roadrace 10/05/2024 Rock ‘n’ Roll San Jose Half Marathon 13.1M, 5K San Jose CA 10-october san-jose-ca roadrace 10/05/2024 Urban Cow Half Marathon 13.1M, 5K Sacramento CA 10-october sacramento-ca roadrace 10/05/2024 Rancho Hills Trail Run – Fall 10K, 10M, 13.1M, 26.2M, 30K, 50K, 5K, 8M Morgan Hill CA 10-october morgan-hill-ca trail 10/05/2024 Long Beach Marathon 13.1M, 26.2M, 5K Long Beach CA 10-october long-beach-ca roadrace 10/05/2024 Spacerock Trail Race 10K, 13.1M, 15K, 5K Agua Dulce CA 10-october agua-dulce-ca trail 10/06/2024 Judgment Day Half Marathon & 5k 13.1M, 5K Bakersfield CA 10-october bakersfield-ca roadrace 10/06/2024 Lions Turtle Bay Run 10K, 13.1M, 2M Redding CA 10-october redding-ca roadrace 10/06/2024 Napa Half & Quarter Marathon 13.1M, 6.55M Napa CA 10-october napa-ca roadrace 10/06/2024 Peace Officer Memorial Run 13.1M, 5K, 8M Modesto CA 10-october modesto-ca roadrace 10/12/2024 Bizz Johnson 50K 10K, 13.1M, 26.2M, 50K Susanville CA 10-october susanville-ca trail 10/12/2024 Mt. Umunhum Trail Conquest 13.1M, 26.2M, 30K, 50K, 5K, 7M San Jose CA 10-october san-jose-ca trail 10/13/2024 Run Malibu Half Marathon and 5K 13.1M, 5K Malibu CA 10-october malibu-ca roadrace 10/13/2024 Jeepers Creepers Run 10K, 13.1M, 5K Santa Clarita CA 10-october santa-clarita-ca roadrace 10/13/2024 Humboldt Redwoods Half Marathon 13.1M, 26.2M, 5K Weott CA 10-october weott-ca trail 10/19/2024 John Wayne Grit Series – Lone Pine 10K, 13.1M Lone Pine CA 10-october lone-pine-ca trail 10/19/2024 Diablo Summit Stomp 10K, 13.1M, 30K, 5K Walnut Creek CA 10-october walnut-creek-ca trail 10/19/2024 California Gold Rush Trail Run 10K, 13.1M, 15K, 1M, 5K Coloma CA 10-october coloma-ca trail 10/20/2024 Cloverdale Vineyard Races 10K, 13.1M, 5K Cloverdale CA 10-october cloverdale-ca trail 10/20/2024 Mission Inn Run Half Marathon 10K, 13.1M, 5K Riverside CA 10-october riverside-ca roadrace 10/20/2024 Pasadena Trail Half Marathon 10K, 13.1M, 5K Pasadena CA 10-october pasadena-ca trail 10/26/2024 Marin County Half Marathon 10K, 13.1M, 5K San Rafael CA 10-october san-rafael-ca trail 11/02/2024 Joshua Tree Half Marathon 13.1M Joshua Tree CA 11-november joshua-tree-ca trail 11/02/2024 Thrive Half Marathon 13.1M, 5K San Diego CA 11-november san-diego-ca roadrace 11/02/2024 ZombieRunner Halloween Marathon 10K, 13.1M, 26.2M, 5K San Jose CA 11-november san-jose-ca roadrace 11/03/2024 Golden Gate Half Marathon & 5K 13.1M San Francisco CA 11-november san-francisco-ca roadrace 11/03/2024 Santa Barbara Half Marathon 13.1M, 5K Santa Barbara CA 11-november santa-barbara-ca roadrace 11/03/2024 Two Cities Marathon 10K, 13.1M, 26.2M, 5K Fresno CA 11-november fresno-ca roadrace 11/09/2024 The Saddleback Marathon 13.1M, 26.2M Lake Elsinore CA 11-november lake-elsinore-ca trail 11/09/2024 Catalina Island Half Marathon 10K, 13.1M Avalon CA 11-november avalon-ca roadrace 11/10/2024 Silver Strand Half Marathon 10K, 12K, 13.1M, 5K San Diego CA 11-november san-diego-ca roadrace 11/16/2024 Lake Chabot Trail Run 13.1M, 26.2M, 30K, 50K, 8K Castro Valley CA 11-november castro-valley-ca trail 11/16/2024 Revel Big Bear Marathon & Half Marathon 13.1M, 26.2M Big Bear CA 11-november big-bear-ca roadrace 11/16/2024 Caspers Trail Races 10K, 13.1M, 26.2M, 35K, 50K San Juan Capistrano CA 11-november san-juan-capistrano-ca trail 11/17/2024 Berkeley Half Marathon 10K, 13.1M, 5K Berkeley CA 11-november berkeley-ca roadrace 11/30/2024 Quarry Turkey 10K, 13.1M, 5K Fremont CA 11-november fremont-ca roadrace 12/07/2024 Calero Trail Run 10K, 13.1M, 15K, 1M, 25K, 26.2M, 50K, 5K San Jose CA 12-december san-jose-ca trail 12/07/2024 Death Valley Trail Marathon and Half Marathon 13.1M, 26.2M Death Valley CA 12-december death-valley-ca trail 12/07/2024 ZombieRunner Quarry Lakes Marathon 10K, 13.1M, 26.2M, 30K, 5K Fremont CA 12-december fremont-ca roadrace 12/08/2024 Loma Linda Holiday Classic Half Marathon 13.1M, 5K Loma Linda CA 12-december loma-linda-ca roadrace 12/14/2024 Holiday Half Marathon 10K, 13.1M, 5K La Verne CA 12-december la-verne-ca roadrace 12/14/2024 San Diego Holiday Half Marathon 13.1M San Diego CA 12-december san-diego-ca roadrace 12/14/2024 Hark the Herald Angels Half Marathon 10K, 13.1M Tiburon CA 12-december tiburon-ca trail 12/15/2024 Holly Jolly Half Marathon 10K, 13.1M, 5K Camarillo CA 12-december camarillo-ca roadrace 12/24/2024 Placerville’s Holiday Jingle and Mingle Run 10K, 13.1M, 15K, 1M, 5K Placerville CA 12-december placerville-ca trail 12/29/2024 Run in the New Years Half Marathon, 10K and 5K 10K, 13.1M, 5K Huntington Beach CA 12-december huntington-beach-ca roadrace 01/01/2025 New Years Day Dash Half Marathon 10K, 10M, 13.1M, 5K Long Beach CA 01-january long-beach-ca roadrace 01/04/2025 Citrus Heritage Run 10K, 13.1M, 5K Riverside CA 01-january riverside-ca trail 01/11/2025 San Diego Resolution Run Half Marathon 10K, 13.1M, 5K San Diego CA 01-january san-diego-ca roadrace 01/19/2025 Carlsbad Marathon 13.1M, 26.2M, 5K Carlsbad CA 01-january carlsbad-ca roadrace 01/19/2025 Rose Bowl Half Marathon 13.1M, 5K Pasadena CA 01-january pasadena-ca roadrace 02/01/2025 Death Valley Marathon 10K, 13.1M, 26.2M Death Valley CA 02-february death-valley-ca roadrace 02/01/2025 San Pasqual Valley Trail Race 10K, 13.1M, 20M Escondido CA 02-february escondido-ca trail 02/02/2025 Kaiser Permanente San Francisco Half Marathon 10K, 13.1M, 5K San Francisco CA 02-february san-francisco-ca roadrace 02/02/2025 Surf City Marathon 13.1M, 1M, 26.2M, 5K Huntington Beach CA 02-february huntington-beach-ca roadrace 02/15/2025 Redtail Ridge 50K 10K, 13.1M, 30K, 50K Castro Valley CA 02-february castro-valley-ca trail 02/22/2025 Beer City Half Marathon 10K, 13.1M, 5K Santa Rosa CA 02-february santa-rosa-ca roadrace 02/23/2025 Ventura Marathon 13.1M, 26.2M Ventura CA 02-february ventura-ca roadrace 03/01/2025 Sanborn Trail Challenge 13.1M, 1M, 4M, 8M Saratoga CA 03-march saratoga-ca trail 03/02/2025 Livermore Valley Half Marathon 13.1M, 5K Livermore CA 03-march livermore-ca roadrace 03/02/2025 Napa Valley Marathon 13.1M, 26.2M, 5K Napa CA 03-march napa-ca roadrace 03/02/2025 Run Through Redlands 10K, 13.1M, 5K Redlands CA 03-march redlands-ca roadrace 03/22/2025 The Oakland Marathon Running Festival 10K, 13.1M, 26.2M, 5K Oakland CA 03-march oakland-ca roadrace 03/22/2025 John Wayne Grit Series – Pioneertown 10K, 13.1M Yucca Valley CA 03-march yucca-valley-ca trail 03/29/2025 Montaña de Oro Trail Run 12K, 13.1M, 36K, 50K Los Osos CA 03-march los-osos-ca trail 04/05/2025 Santa Teresa King Richard Trail Run 10K, 10M, 13.1M, 5K San Jose CA 04-april san-jose-ca trail 04/05/2025 Bedrock Valley Trail Runs 13.1M, 15K, 26.2M, 5K Hemet CA 04-april hemet-ca trail