Half Marathons in California
From first-timer-friendly flats to trails worth traveling for, find a California half marathon that fits your goals and your sense of adventure.
294
upcoming races
294 races
Santa Cruz Marathon · Santa Cruz, California
Trick or Trot 5K, 10K, and Half Marathon by Califlow Runs · Long Beach, California
Crown Point Half and Marathon Relay · San Diego, California
Spooky Shuffle – 5k, 10k, Half Marathon · Van Nuys, California
2026 First Responders 1M 5K 10K 13.1 26.2 · Los Angeles, California
ZombieRunner Halloween (Sold Out!) · San Jose, California
Happy Halloween 5k, 10k, 15k, Half Marathon · long beach, California
Halloween Trick or Trot Run 5K/10K/13.1 SAN FRANCISCO · San Francisco, California
PB&J Fuel Run 5K/10K/13.1 SAN FRANCISCO · San Francisco, California
PB&J Fuel Run 5K/10K/13.1 SACRAMENTO · Sacramento, California
Halloween Trick or Trot Run 5K/10K/13.1 SACRAMENTO · Sacramento, California
Halloween Trick or Trot Run 5K/10K/13.1 SAN DIEGO · San Diego, California
PB&J Fuel Run 5K/10K/13.1 SAN DIEGO · San Diego, California
Halloween Trick or Trot Run 5K/10K/13.1 LOS ANGELES · Los Angeles, California
PB&J Fuel Run 5K/10K/13.1 LOS ANGELES · Los Angeles, California
The Long Beach Halloween Run 5K. 10K. Half Marathon by Califlow Runs · Long Beach, California
Clarksburg Country Run · Clarksburg, California
Two Cities Marathon · Fresno, California
Día de Muertos - Viva la Vida - 5K, 10K, and Half Marathon by Califlow Runs · Long beach, California
Golden Gate Half Marathon · San Francisco, California
Halloween Leftovers – 5K, 10K, 10-Miler, Half Marathon · Long Beach, California
REVEL Big Bear · Big Bear Lake, California
Lake Chabot Trail Run · Castro Valley, California
Joshua Tree Half Marathon · Joshua Tree, California
Mt. Tam Trail Run · Stinson Beach, California
Beer City Half™ OC · Santa Ana, California
Saddleback Marathon · Silverado, California
Women's Trail Run - Mermaid Series · Woodside, California
RunThrough San Francisco at Crissy Field 5k, 100k & Half Marathon · San Francisco, California
REVEL Big Bear · Big Bear Lake, California
Monterey Bay Half Marathon · Monterey, California
Santa Barbara Half Marathon & 5K · Santa Barbara, California
2026 Silver Strand Veterans Day Half Marathon, 10 Miler, 12K & 5K - San Diego · Coronado, California
Temecula Half Marathon, 10K, 5K · Temecula, California
Run Malibu · Malibu, California
2026 Run the Parkway · Carmichael, California
Monterey Bay Half Marathon · Monterey, California
Donut Runners Rejoice – 5K, 10K, 10-Miler, Half Marathon · Long Beach, California
Sonoma Mountain Challenge Half Marathon · Glen Ellen, California
2026 Southwest Series - Day 6 (CA) · Nipton, California
Friday the 13th Night Race -Deranged Turkey Trot: 5K. 10K. Half Marathon by Califlow Runs · Long Beach, California
Thrive San Diego Half Marathon & 5K · San Diego, California
ZombieRunner Quarry Lakes · Fremont, California
Catalina Island Half-Marathon & 10K · Avalon, California
Huffin for the Stuffin- Turkey Trot 5K, 10K, & Half Marathon · Long Beach, California
Run for Mental Health 5K/10K/13.1 SAN FRANCISCO · San Francisco, California
Run for Mental Health 5K/10K/13.1 SACRAMENTO · Sacramento, California
Run for Mental Health 5K/10K/13.1 SAN DIEGO · San Diego, California
Veterans Day Freedom Run 5K/10K/13.1 SACRAMENTO · Sacramento, California
Veterans Day Freedom Run 5K/10K/13.1 SAN FRANCISCO · San Francisco, California
Ripon Turkey Trail Run · Ripon, California
Run for Mental Health 5K/10K/13.1 LOS ANGELES · Los Angeles, California
Veterans Day Freedom Run 5K/10K/13.1 SAN DIEGO · San Diego, California
Veterans Day Freedom Run 5K/10K/13.1 LOS ANGELES · Los Angeles, California
The Stuffing Shuffle – 5K, 10K, Half Marathon · Fountain Valley, California
Move4Life's Half-Marathon · Sacramento, California
Berkeley Half Marathon · Berkeley, California
Santa Clarita Marathon · Santa Clarita, California
2026 Apple Hill Half Marathon & 5K · Camino, California
Davis Turkey Trot · Davis, California
Harvest Hustle – 5K, 10K, Half Marathon · Lake View Terrace, California
Griffith Park Trail Run - Fall Edition · Los Angeles, California
Furgiving Run: Turkey Trot 5K, 10K, Half Marathon by Califlow Runs · Long Beach, California
Zoom Turkey Trot · San Jose, California
Turkey Trot 5k, 10k, 15k, Half Marathon · Van Nuys, California
LA Turkey Trail · Los Angeles, California
Quarry Turkey Half Marathon · Fremont, California
Mash + Dash – 5K, 10K, 10-Miler, Half Marathon · Long Beach, California
Thanksgiving Gobble Trot Run 5K/10K/13.1 SACRAMENTO · Sacramento, California
Thanksgiving Gobble Trot Run 5K/10K/13.1 SAN FRANCISCO · San Mateo, California
Coffee Lovers Run 5K/10K/13.1 SAN DIEGO · San Diego, California
Black Mountain Turkey Burner · San Diego, California
Coffee Lovers Run 5K/10K/13.1 LOS ANGELES · Los Angeles, California
Coffee Lovers Run 5K/10K/13.1 SACRAMENTO · Sacramento, California
Thanksgiving Gobble Trot Run 5K/10K/13.1 SAN DIEGO · San Diego, California
Thanksgiving Gobble Trot Run 5K/10K/13.1 LOS ANGELES · Los Angeles, California
Peacock Gap Trail Run · San Rafael, California
Calero Trail Run · San Jose, California
Merry Miles- 5K, 10K, and Half Marathon by Califlow Runs · Long Beach, California
Jingle Bell Jog – 5K, 10K, 10-Miler, Half Marathon · Long Beach, California
The Blackhorse Marathon in Honor of MG(R) Sunell · Fort Irwin, California
Sunrise Marathon 5K/10K/13.1 SAN FRANCISCO · San Francisco, California
Santa To The Sea 1/2 Marathon, 1/4 Marathon & 5K · Oxnard, California
Sunrise Marathon 5K/10K/13.1 LOS ANGELES · Los Angeles, California
Summit Rock Half Marathon · Saratoga, California
Holiday Half Marathon, 10K, 5K, Kid's 1-Mile · Goleta, California
Pulp Fiction: Royale with Speed 5K, 10K & 13.1 · Canoga Park, California
Run for Breast Cancer 5K/10K/13.1 SAN DIEGO · San Diego, California
Hark the Herald Angels Half Marathon · Tiburon, California
Run for Breast Cancer 5K/10K/13.1 SAN FRANCISCO · San Francisco, California
Run for Breast Cancer 5K/10K/13.1 LOS ANGELES · Los Angeles, California
Run for Breast Cancer 5K/10K/13.1 SACRAMENTO · Sacramento, California
Sunrise Marathon 5K/10K/13.1 SACRAMENTO · Sacramento, California
Sunrise Marathon 5K/10K/13.1 SAN DIEGO · San Diego, California
Holiday Fun 5k, 10k, 15k, Half Marathon · Van Nuys, California
The Syty Half Marathon · San Diego, California
Magnolia Magic River Trail Run · Pilot Hill, California
Santa Hustle Roseville · Roseville, California
Winter Runderland 5K, 10K, & Half Marathon. Kids Dash · Long Beach, California
Santa's Toy Trot – 5K, 10K, Half Marathon · Santa Monica, California
Reindeer Run Riverside 5k, 10k, 15k, Half Marathon · Riverside, California
San Diego Holiday Half Marathon & 5K · San Diego, California
2026 Woodside Ramble - Winter · Redwood City, California
Winter Whirl – 5K, 10K, Half Marathon · Fountain Valley, California
Reindeer Run GP 5k, 10k, 15k, Half Marathon · Los Angeles, California
The Jingle Bell Dash Kids Dash, 1 Miler, 5K, 10K and Half Marathon & Santa Paws Doggie Run · Long Beach, California
Woodside Ramble · Woodside, California
Feliz Navidad Run 5K 10K Half Marathon by Califlow Runs · Long Beach, California
Kris Kringle Jingle Run · Long Beach, California
Holly Jolly Marathon · Camarillo, California
Santa’s Reindeer Run - 3rd Annual- 5K, 10K, and Half Marathon · Huntington Beach, California
Chasing Santa – 5K, 10K, 10-Miler, Half Marathon · Long Beach, California
2026 Holiday Half Marathon · Pomona, California
2026 Holiday Half Marathon and 5K - Sunday · Pomona, California
2026 Holiday Running Festival - Sunday · Pomona, California
2026 Holiday Half and 5K - Sunday · Pomona, California
Dirty December Trail Run · San Diego, California
Placerville's Holiday Jingle and Mingle Run · Placerville, California
Jingle All the Way - Christmas Day 5K, 10K, Half Marathon, Kids Dash by Califlow Runs · Long Beach, California
Ring Out the Old – 5K, 10K, Half Marathon · Encino, California
A Merry Christmas Run 5K/10K/13.1 SACRAMENTO · Sacramento, California
A Merry Christmas Run 5K/10K/13.1 SAN FRANCISCO · San Mateo, California
A Merry Christmas Run 5K/10K/13.1 LOS ANGELES · Los Angeles, California
A Merry Christmas Run 5K/10K/13.1 SAN DIEGO · San Diego, California
New Year's Run 5K/10K/13.1 SACRAMENTO · Sacramento, California
New Year's Run 5K/10K/13.1 SAN FRANCISCO · San Mateo, California
New Year's Run 5K/10K/13.1 LOS ANGELES · Los Angeles, California
New Year's Run 5K/10K/13.1 SAN DIEGO · San Diego, California
Happy Holidays 5k, 10k, 15k, Half Marathon · long beach, California
Countdown to the Finish – 5K, 10K, 10-Miler, Half Marathon · Long Beach, California
2026 Almost New Year's Eve · Castro Valley, California
Last Dash Before Midnight 5K, 10K, & Half Marathon by Califlow Runs · Long Beach, California
Brazen New Year's Eve · Castro Valley, California
Run In The New Year 5k/10K/Half Marathon · Huntington Beach, California
Brazen New Years Day Runs · Castro Valley, California
Griffith Park Resolution Run · Los Angeles, California
Chasing Churros 5K, 10K & Half Marathon by Califlow Runs · Long Beach, California
Citrus Heritage Run · Riverside, California
San Diego 50 & Trail Runs · Escondido, California
Grievances & Gratitude Run – New Year Reset 5K 10K Half Marathon · Long Beach, California
The Bagel Run – 5K, 10K, 10-Miler, Half Marathon · Long Beach, California
Define Your Glow - New Year Reset 5K, 10K, Half Marathon by Califlow Runs · Long Beach, California
MLK Jr. Freedom Run 5K/10K/13.1 SACRAMENTO · Sacramento, California
MLK Jr. Freedom Run 5K/10K/13.1 SAN DIEGO · San Diego, California
MLK Jr. Freedom Run 5K/10K/13.1 SAN FRANCISCO · San Francisco, California
MLK Jr. Freedom Run 5K/10K/13.1 LOS ANGELES · Los Angeles, California
Sunrise Marathon 5K/10K/13.1 SAN FRANCISCO · Los Angeles, California
Rose Bowl Half Marathon · Pasadena, California
Carlsbad Marathon · Carlsbad, California
SPASM Crystal Springs Trail Run · Woodside, California
Polar Bear Run 5K, 10K, and Half Marathon by Califlow Runs · Long Beach, California
Del Dios Trail Race · Escondido, California
Coyote Hills · Fremont, California
Coffee Lover Run SACRAMENTO · Sacramento, California
Coffee Lover Run SAN FRANCISCO · San Francisco, California
Run for Donut SACRAMENTO · Sacramento, California
Run for Donut SAN FRANCISCO · San Francisco, California
Run for Donut SAN DIEGO · San Diego, California
Coffee Lover Run SAN DIEGO · San Diego, California
Besties Run 5K. 10K. Half Marathon , & Kids Dash · Long Beach, California
Griffith Park Run · Los Angeles, California
Golden Gate Trail Run · Sausalito, California
Heart and Sole Valentine's Run 5K, 10K, and Half Marathon by Califlow Runs · Long Beach, California
Jed Smith Ultra · Sacramento, California
Surf City Marathon · Huntington Beach, California
2027 Kaiser Permanente San Francisco Half Marathon & 5K · San Francisco, California
Surf City Marathon · Huntington Beach, California
Besties Run · Long Beach, California
San Francisco Half Marathon · San Francisco, California
Bay Breeze · San Leandro, California
The HEART RUN Half Marathon & 5K/10K · Huntington Beach, California
The Ranch 50K/Half Marathon · Escondido, California
Valentine's Day Run 5K/10K/13.1 SAN FRANCISCO · San Francisco, California
Run for Chocolate 5k/10k/13.1 SACRAMENTO · Sacramento, California
Run for Chocolate 5k/10k/13.1 SAN DIEGO · San Diego, California
Valentine's Day Run 5K/10K/13.1 SACRAMENTO · Sacramento, California
Valentine's Day Run 5K/10K/13.1 LOS ANGELES · Los Angeles, California
Run for Chocolate 5k/10k/13.1 SAN FRANCISCO · San Francisco, California
Valentine's Day Run 5K/10K/13.1 SAN DIEGO · San Diego, California
Palm Desert 1/2 Marathon & 5K · Palm Desert, California
The Long Beach Sweetheart's Run - Valentine's 5K, 10K, & Half Marathon by Califlow Runs · Long Beach, California
Palm Desert Half Marathon · Palm Desert, California
Beer City Half™ Santa Rosa · Santa Rosa, California
Victory Race · Richmond, California
Montara Mountain Trail Run · Pacifica, California
FOURmidable · Auburn, California
The Lost Trail 5K & Half Marathon · Granite Bay, California
San Pasqual Valley Trail Race · Escondido, California
Ventura Marathon · Ventura, California
SOCAL River Marathon - 26.2 - 13.1 - 10K - 5K · Huntington Beach, California
Apple Valley Desert Rock and Road Half Marathon 2027 · Apple Valley, California
Mermaid Half Marathon San Diego · San Diego, California
Sycamore Canyon Trail Race · San Diego, California
Navy Ten-Miler · Chula Vista, California
Disco Miles: Beachfront Boogie 5K, 10K, Half Marathon by Califlow Runs · Long Beach, California
Run Through Redlands · Redlands, California
2027 Napa Valley Marathon · Napa, California
Livermore Valley Half Marathon · Livermore, California
Napa Valley Marathon · Calistoga, California
She Runs Long Beach - National Women's Day Run 5K • 10K • Half Marathon · Long Beach, California
Beer City Half™ San Diego · San Diego, California
Zoom San Francisco · San Francisco, California
Mojave Half Marathon · Twentynine Palms, California
Old West Trail Runs · Shelter Valley, California
Shamrock'n Half Marathon · Sacramento, California
Moonlight Beach Half Marathon · Encinitas, California
The Long Beach Leprechaun Run - Kids Dash, 1 Miler, 5k, 10K, & Half Marathon by Califlow Runs · Long Beach, California
Shamrock'n Half Marathon · Sacramento, California
2027 Oakland Running Festival · Oakland, California
2027 Napa Valley Trail Marathon · Calistoga, California
Fort Bragg Whale Run and Walk · Fort Bragg, California
Redwood (Spring) Trail Run · Oakland, California
Beer City Half™ Long Beach · Long Beach, California
VALENCIA Trail Race · Santa Clarita, California
Finish The Ride and Finish The Run Griffith Park 2027 · Los Angeles, California
John Wayne Grit Series - Pioneertown · Pioneertown, California
Whale Walk and Run · Fort Bragg, California
Sunrise Marathon 5K/10K/13.1 LOS ANGELES · Los Angeles, California
San Diego Half Marathon · San Diego, California
Oakland Marathon · Oakland, California
Como La Flor 5K. 10K, Half Marathon by Califlow Runs · Long Beach, California
Bakersfield Marathon · Bakersfield, California
Bedrock Valley Trail Runs · Hemet, California
Modesto Marathon · Modesto, California
World Health Day: 5K 10K Half Marathon Running for a Better World by Califlow Runs · Long Beach, California
San Diego Beach & Bay Half Marathon · San Diego, California
Noli Indian School Trail Races · San Jacinto, California
Run for Bagels 5K/10K/13.1 LOS ANGELES · Los Angeles, California
Mountains 2 Beach Marathon and Half · Ventura, California
Badger Cove · Livermore, California
Horseshoe Lake Trail Run · Los Gatos, California
Run for the Planet -An Earth Day Run by CaliFlow Runs - 5K, 10K, Half Marathon · Long beach, California
2027 Silver Moon Race · Reedley, California
Silver Moon Race: Kings River · Reedley, California
Mountains 2 Beach Marathon · Ventura, California
Nail the Rail Half Marathon, 10K & 5K · Shasta Lake, California
SPASM Lake Chabot Trail Run · Castro Valley, California
Coffee Lover Run LOS ANGELES · Los Angeles, California
Run for Donut LOS ANGELES · Los Angeles, California
2027 Napa Spring Half Marathon & 5K · Napa, California
Run, Fiesta, Repeat - Cinco de Mayo 5K, 10K, & Half Marathon · Long Beach, California
The Hoag OC Marathon Running Festival · Costa Mesa, California
2027 OC Marathon - Half Marathon - 5K · Newport Beach, California
2027 Avenue of the Giants Marathon · Arcata, California
Bay Bridge Half Marathon · Oakland, California
May the 4th be with You- The Empire Strides Back 5K, 10K, & Half Marathon by Califlow Runs · Long Beach, California
Cycle Through the Vineyards · Temecula, California
OC Marathon Running Festival · Costa Mesa, California
Santa Barbara Wine Country Half Marathon · Solvang, California
Yosemite Half Marathon · Bass Lake, California
Beer City Half™ Sacramento · Sacramento, California
Wine Half Marathon, Napa Edition · Napa, California
Paiute Meadows Trail Run · Susanville, California
Run for Chocolate 5k/10k/13.1 LOS ANGELES · Los Angeles, California
Trailquake · Saratoga, California
Long Beach Mother's Day Bloom & Zoom 5K, 10K, Half Marathon by Califlow Runs · Long Beach, California
La Jolla Half Marathon, 10K, & 5K · La Jolla, California
Wildcat · El Sobrante, California
14th Annual Luc's Run · Tuolumne, California
Venice Beach Half Marathon & 5K · Venice, California
Beer City Half San Jose · San Jose, California
Spartan Trail - Monterey · Salinas, California
2027 Fontana Days Run · Fontana, California
Wrigley River Run & Tadpole Trot · Long Beach, California
Rock 'n' Roll San Diego · San Diego, California
SuperHero - Runbelievable - 5K. 10K. Half Marathon by Califlow Runs · Long Beach, California
Olympic Valley Half Marathon, 8-Miler, and 5K · Olympic Valley, California
2027 71st Annual Fontana Days Run · Fontana, California
2027 Sugar Daddy Race · Santa Clarita, California
Summer Solstice Run : 5K.10K. Half Marathon –by Califlow Runs · Long Beach, California
Mare Island Half Marathon · Vallejo, California
Red, White & Blue Race · Fort Bragg, California
Liberty Station Relay and 5K · San Diego, California
2027 Davis Moonlight Run · Davis, California
2027 San Lorenzo River Trail Run · Santa Cruz, California
2027 Brian Waterbury Memorial Rock to Pier Fun Run · Morro Bay, California
2027 Napa to Sonoma Wine Country Half Marathon & Rosé 5K · Napa, California
2027 Humboldt Bay Marathon · Eureka, California
2027 Double Dipsea · Stinson Beach, California
Pre Reg 2027 Torrance Memorial Medical Center, BRA Run, Los Angeles · Playa Del Rey, California
2027 Long Beach Liberty Run - Labor Day 5K, 10K, Half Marathon · Long Beach, California
2027 Delta Harvest Run · Brentwood, California
2027 Urban Cow Half Marathon · Sacramento, California
2027 Rock 'n' Roll San Jose · San Jose, California
2027 Peace Officer Memorial Run · Modesto, California
2027 Pacific Beachfest Run · San Diego, California
2027 Lake Tahoe Marathon · South Lake Tahoe, California
2027 Diablo Summit Stomp · Walnut Creek, California
2027 MISSION INN RUN · Riverside, California
2027 Cloverdale Vineyard Races · Cloverdale, California
2027 Fleet Feet Fall Classic - Trail October 18th, 2026 · Chico, California
2027 Malibu Moves: Half Marathon, 10K, 5K, 1-Mi & 1K · Malibu, California
Pre-Registration Bakersfield Marathon 2028 · Bakersfield, California
Pre Reg 2028 Wrigley River Run & Tadpole Trot · Long Beach, California