California · Half Marathon
Half Marathons in California
California currently has 197 upcoming half marathons with a confirmed date listed in RaceRove. Long Beach, San Diego, Los Angeles and Sacramento have the largest concentration of events.
November (36), December (36) and February (22) are the busiest months on the calendar right now. Another 94 annual half marathons are waiting for next year's date to be announced.
- Upcoming, date confirmed
- 197
- Active listings
- 291
- Cities with races
- 98
More ways to browse California
Upcoming half marathons in California
All 197 with a confirmed date, soonest first.
-
Dia De Los Muertos Half Marathon & 5K Run/Walk (Bakersfield)Bakersfield, CAHalf Marathon5K2 Mile Speed Walk
-
The Long Beach Halloween Run 5K. 10K. Half Marathon by Califlow RunsLong Beach, CAHalf Marathon5K10K
-
Día de Muertos - Viva la Vida - 5K, 10K, and Half Marathon by Califlow RunsLong beach, CAHalf Marathon5K10K1 Mile
-
Mermaid Trail RunWoodside, CA3 Miles6 Hour Challenge (2 Person RELAY - Price per person)6 Hour Challenge (Individual)6 Miles +2 more
-
RunThrough San Francisco at Crissy Field 5k, 100k & Half MarathonSan Francisco, CAHalf Marathon10K5K
-
Monterey Bay Half MarathonMonterey, CAHalf Marathon5K (plus 3K/5K in Pacific Grove on Saturday) ~6,300 runners
-
Santa Barbara Half Marathon & 5KSanta Barbara, CA5KHalf Marathon presented by HOKAKid's RaceRemote Run ~4,461 runners
-
Silver Strand Veterans Day Half Marathon, 10 Miler, 12K & 5K - San DiegoCoronado, CAHalf Marathon10 Mile12K5K ~4,461 runners
-
Friday the 13th Night Race -Deranged Turkey Trot: 5K. 10K. Half Marathon by Califlow RunsLong Beach, CAHalf Marathon5K10K
-
Huffin for the Stuffin- Turkey Trot 5K, 10K, & Half MarathonLong Beach, CAHalf Marathon5K10K200 Yards
-
Furgiving Run: Turkey Trot 5K, 10K, Half Marathon by Califlow RunsLong Beach, CAHalf Marathon5K10K1 Mile +1 more
-
Hark the Herald Half Marathon & 10KTiburon, CA10K10K - YouthHalf MarathonHalf Marathon - Youth ~400 runners
-
Santa To The Sea 1/2 Marathon, 1/4 Marathon & 5KOxnard, CAMarathonHalf Marathon5K6.55 Miles +1 more ~29,453 runners
-
The Jingle Bell Dash Kids Dash, 1 Miler, 5K, 10K and Half Marathon & Santa Paws Doggie RunLong Beach, CAHalf Marathon5K10K200 Yards
-
Santa’s Reindeer Run - 3rd Annual- 5K, 10K, and Half MarathonHuntington Beach, CAHalf Marathon5K10K13.2 Miles +3 more
-
Jingle All the Way - Christmas Day 5K, 10K, Half Marathon, Kids Dash by Califlow RunsLong Beach, CAHalf Marathon5K10K
-
Countdown to the Finish – 5K, 10K, 10-Miler, Half MarathonLong Beach, CAHalf Marathon5K10K10 Miles
-
Last Dash Before Midnight 5K, 10K, & Half Marathon by Califlow RunsLong Beach, CAHalf Marathon5K10K
-
Define Your Glow - New Year Reset 5K, 10K, Half Marathon by Califlow RunsLong Beach, CAHalf Marathon5K10K
-
Carlsbad Marathon, Half Marathon & 5KCarlsbad, CAMarathonHalf Marathon5KDouble Down Challenge (5K + Half) ~7,000 runners
-
Heart and Sole Valentine's Run 5K, 10K, and Half Marathon by Califlow RunsLong Beach, CAHalf Marathon5K10K
-
SOCAL River Marathon - 26.2 - 13.1 - 10K - 5KHuntington Beach, CAMarathonHalf Marathon5K10K ~3,914 runners
-
Disco Miles: Beachfront Boogie 5K, 10K, Half Marathon by Califlow RunsLong Beach, CAHalf Marathon5K10K
-
She Runs Long Beach - National Women's Day Run 5K • 10K • Half MarathonLong Beach, CAHalf Marathon5K10K
-
Moonlight Beach Half Marathon, 10k & 6kEncinitas, CA10k10k (17 and uner)6k6k (17 and under) +2 more
-
Shamrock'n WeekendWest Sacramento, CA10K5KDouble Header: 10K + Half MarathonDouble Header: 5K + Half Marathon +1 more
-
The Long Beach Leprechaun Run - Kids Dash, 1 Miler, 5k, 10K, & Half Marathon by Califlow RunsLong Beach, CAHalf Marathon300 Yards1 Mile5K +1 more
-
San Diego Half Marathon & Padres 5K (GOVX)San Diego, CAHalf Marathon5K2-Person Half Marathon Relay ~7,500 runners
-
Run for the Planet -An Earth Day Run by CaliFlow Runs - 5K, 10K, Half MarathonLong beach, CAHalf Marathon5K10K1 Mile +1 more
-
Santa Cruz Westside Half Marathon 10k/5kSanta Cruz, CAWestside 10kWestside 5kWestside Half Marathon
-
May the 4th be with You- The Empire Strides Back 5K, 10K, & Half Marathon by Califlow RunsLong Beach, CAHalf Marathon5K10K1 Mile +1 more
-
Long Beach Mother's Day Bloom & Zoom 5K, 10K, Half Marathon by Califlow RunsLong Beach, CAHalf Marathon5K10K1 Mile +1 more
-
Windsor Half Marathon 10K & 5KWindsor, CAWindsor California 10k (6.2 Mile)Windsor California 5k (3.1 Mile)Windsor California Half Marathon 13.1M
-
Venice Beach Half Marathon and 5kSanta Monica, CA10:15 a.m. Kids Grunion Run7:00 a.m. Half Marathon8:00 a.m. 5k Course8:30 a.m. One Mile Junior Dash (ages 10 - 18)
-
SuperHero - Runbelievable - 5K. 10K. Half Marathon by Califlow RunsLong Beach, CAHalf Marathon5K10K1 Mile +1 more
-
Liberty Station Relay and 5KSan Diego, CA5KHalf Marathon (Solo)Half Marathon Relay (Team Captain)Half Marathon Relay (Team Member) +2 more
-
Endless Summer in the LBC 5K, 10K, & Half Marathon by Califlow RunsLong Beach, CAHalf Marathon5K10K
-
BOO-gie Glow Run 5K 10K Half Marathon - SummerWeen Series by Califlow RunsLong Beach, CAHalf Marathon5K10K1 Mile
-
Sundae Funday - Ice Cream Run 5K, 10K, and Half Marathon by Califlow RunsLong Beach, CAHalf Marathon5K10K
-
Night of the Running Dead 5K, 10K, 1 Miler, Half Marathon SummerWeen Series by Califlow RunsLong Beach, CAHalf Marathon5K10K1 Mile
-
Pacific Beach Half Marathon & 5KSan Diego County, CA5K - 7:30a - Early Wave - SATURDAY5K - 9:00a - Main Wave - SATURDAYHalf Marathon - SUNDAYKids 1K - SATURDAY +1 more
-
Binational RaceSan Diego, CATHE BINATIONAL 10K Starting in Tijuana MexicoTHE BINATIONAL 12KTHE BINATIONAL HALF MARATHONVIRTUAL HALF MARATHON ( ~5,000 runners
-
Operation Jack Marathon, Half Marathon & 5KManhattan Beach, CAMarathonHalf Marathon5K10K ~600 runners
Dates come from each race's own listing. Always confirm on the organiser's site before you book travel.
Largest half marathon events in California
By estimated field size across all distances at the event.
-
Santa To The Sea 1/2 Marathon, 1/4 Marathon & 5KOxnard, CAMarathonHalf Marathon5K6.55 Miles +1 more ~29,453 runners
When half marathons happen in California
- January
- 20 upcoming races
- February
- 22 upcoming races
- March
- 14 upcoming races
- April
- 15 upcoming races
- May
- 15 upcoming races
- June
- 7 upcoming races
- July
- 8 upcoming races
- August
- 8 upcoming races
- September
- 2 upcoming races
- October
- 14 upcoming races
- November
- 36 upcoming races
- December
- 36 upcoming races
California cities with the most half marathons
- Long Beach
- 42 upcoming races
- San Diego
- 24 upcoming races
- Los Angeles
- 18 upcoming races
- Sacramento
- 13 upcoming races
- San Francisco
- 10 upcoming races
- Huntington Beach
- 5 upcoming races
- San Mateo
- 4 upcoming races
- Auburn
- 3 upcoming races
Running in California cities
Annual events awaiting their next date
These half marathons are held every year, but the next date isn't in the listing yet. The month shown is when each is usually held.
-
Malibu Moves: Half Marathon, 10K, 5K, 1-Mi & 1KMalibu, CA Usually held in October · next date not announcedHalf Marathon10K5K ~3,000 runners
-
Judgment Day Half Marathon, 10K & 5K Run/WalkBakersfield, CA Usually held in October · next date not announcedHalf Marathon5K10K ~2,293 runners
-
Pumpkin Run by Senior Coastsiders October 18Half Moon Bay, CA Usually held in October · next date not announced10K Run/Walk5K Run/WalkHalf MarathonKids' Fun Run +3 more ~1,550 runners
-
Lake Tahoe Marathon EventsSouth Lake Tahoe, CA Usually held in October · next date not announcedMarathonHalf Marathon10K5K +2 more ~1,000 runners
-
Napa Half MarathonNapa, CA Usually held in October · next date not announcedHalf Marathon6.55 Mile (Quarter Marathon) ~619 runners
-
Big Sur Trail Marathon, Half Marathon & 5 MileBig Sur, CA Usually held in September · next date not announced5 Mile - Adult5 Mile - YouthHalf Marathon - AdultHalf Marathon - Youth +2 more ~300 runners
-
Napa Fall Wine Country Marathon, Half Marathon, 10K, & 5KCalistoga, CA Usually held in October · next date not announcedMarathonHalf Marathon10K5K ~300 runners
-
Oakland Hills Trail RunOakland, CA Usually held in October · next date not announced35K1/2 Marathon10K ~300 runners
-
Reservoir Dogs Trail RunOrinda, CA Usually held in October · next date not announced35K1/2 Marathon10K5K ~300 runners
-
Humboldt Redwoods Marathon, Half Marathon, 5KWeott, CA Usually held in October · next date not announcedMarathonHalf Marathon5K10K ~230 runners
-
Acorn Creek Trail RunPilot Hill, CA Usually held in October · next date not announcedHalf Marathon10K ~175 runners
-
Auburn Half MarathonAuburn, CA Usually held in September · next date not announcedHalf Marathon13.6 Miles7.6 Miles3.4 Miles ~110 runners
-
Trail Run at Sly Park - FallPollock Pines, CA Usually held in October · next date not announced50KTrail Marathon17 MilerHalf Marathon +3 more ~100 runners
-
The Peak 50K, Marathon & Half MarathonJulian, CA Usually held in October · next date not announced50KMarathon1/2 Marathon ~49 runners
-
Sonoma Fall ClassicHealdsburg, CA Usually held in October · next date not announced100 Mile Sufferfest100 Mile Relay50 Mile RelayLake Sonoma 50 Mile +2 more ~26 runners
-
Trail Run at Sly Park - SummerPollock Pines, CA Usually held in August · next date not announced50KMarathon17 Mile1/2 Marathon +3 more ~12 runners
-
Alien Invasion Man-5K 10K & Half Marathon - Health is Wealth ExpoLong Beach, CA Usually held in August · next date not announcedHalf Marathon5K10K
-
Angel Island Half Marathon & 10KTiburon, CA Usually held in August · next date not announced10K10K - Youth (6-17)Half MarathonHalf Marathon - Youth (6-17)
-
Back to the Future: 88 MPH Dash 5K, 10K & HalfCanoga Park, CA Usually held in October · next date not announcedHalf Marathon5K10K
-
Bagel Run 5K/10K/13.1 LOS ANGELESLos Angeles, CA Usually held in October · next date not announcedHalf Marathon5K10K1 Mile
-
Bagel Run 5K/10K/13.1 SACRAMENTOSacramento, CA Usually held in August · next date not announcedHalf Marathon5K10K1 Mile
-
Bagel Run 5K/10K/13.1 SAN DIEGOSan Diego, CA Usually held in August · next date not announcedHalf Marathon5K10K1 Mile
-
Bagel Run 5K/10K/13.1 SAN FRANCISCOSan Francisco, CA Usually held in August · next date not announcedHalf Marathon5K10K1 Mile
-
Bayside Saved by the Bell 5K, 10K & Half MarathonCanoga Park, CA Usually held in September · next date not announcedHalf Marathon5K10K
-
Bear CreekOrinda, CA Usually held in August · next date not announced13.32 Miles6.3 Miles5K10K +1 more
-
Berkeley Trail AdventureBerkeley, CA Usually held in September · next date not announced50K35K1/2 Marathon10K
-
Cahuilla Rez UltraAnza, CA Usually held in October · next date not announced100 Miler24hrsHalf Marathon12hrs +2 more
-
California Gold Rush Trail Run - FallColoma, CA Usually held in October · next date not announcedHalf Marathon15K10K5K +2 more
-
City to the Sea Half Marathon & 5KSan Luis Obispo, CA Usually held in October · next date not announcedHalf Marathon5K
-
Clo Cow Half Marathon, 10K & 5KPetaluma, CA Usually held in October · next date not announced10K5KHalf Marathon
-
Crown Point Relay RunsSan Diego, CA Usually held in October · next date not announced5K8KHalf Marathon Relay (Team Captain or Solo Runner)Half Marathon Relay (Team Member) +1 more
-
Diablo Summit StompWalnut Creek, CA Usually held in October · next date not announced10K30K5KHalf Marathon +1 more
-
Dog Days of Summer – 5K, 10K, 10M, and Half MarathonLong Beach, CA Usually held in August · next date not announcedHalf Marathon5K10K10 Miles +1 more
-
Ers Season PassOceanside, CA Usually held in October · next date not announcedSEASON PASS- 10KSEASON PASS- 5KSEASON PASS- HALF MARATHON
-
Fiesta Half Marathon & 10K - BakersfieldBakersfield, CA Usually held in September · next date not announcedHalf Marathon10K5K2 Miles +1 more
-
Fiesta Half Marathon, 10K & Mile Run - FresnoFresno, CA Usually held in September · next date not announcedHalf Marathon10K1 Mile400m +1 more
-
Fredrick Michael Gibson 5K/10K & Half Marathon Walk/Run for Depression AwarenessSimi Valley, CA Usually held in October · next date not announced10K5KDogs walk/runHalf Marathon +2 more
-
Half-Marathon Training for Fun & FitnessGrass Valley, CA Usually held in July · next date not announcedHalf Marathon5K
-
Hallo-Thanks-Mas Dash – 5K, 10K, and Half MarathonSan Diego, CA Usually held in October · next date not announcedHalf Marathon5K10K
-
Hell Of A Half Marathon & 2 Person RelayExeter, CA Usually held in August · next date not announcedHalf Marathon5K
Half Marathons in nearby states
Guides from the RaceRove blog
- 7 min read How to Find a 5K, 10K, Half Marathon or Marathon Near You A practical way to find running races near you: pick a distance, decide how far you'll travel, read the listing properly and confirm the details before you register.
- 8 min read How to Choose the Best Half Marathon for a PR, Racecation or 50-State Challenge The best half marathon depends on what you want from it. How to choose a course for a personal record, a race worth travelling for, or an efficient stop on a 50-state challenge.
- 4 min read Diplo's Run Club 2026-27: Every City, Date and Course Diplo's Run Club is a 5K with a post-race concert. Every US date for 2026-27 (San Francisco, New York, Los Angeles, San Diego and Phoenix), start times and courses.
- Blog All guides Planning advice for finding, choosing and travelling to races.
Half Marathons in California: common questions
- How many half marathons are there in California?
- RaceRove currently lists 197 upcoming half marathons in California with a confirmed date, plus 94 annual events whose next date hasn't been announced yet.
- How long is a half marathon?
- A half marathon is 13.1 miles (21.1 kilometres).
- Which California cities have the most half marathons?
- By upcoming events listed in RaceRove: Long Beach (42), San Diego (24), Los Angeles (18), Sacramento (13) and San Francisco (10).
- When is half marathon season in California?
- Of the upcoming half marathons listed, the busiest months are November (36), December (36) and February (22).
- What is the biggest half marathon in California?
- By estimated field size, the largest event with a half marathon listed in California is the Santa To The Sea 1/2 Marathon, 1/4 Marathon & 5K, with about 29,453 runners across all of its distances.
Search every half marathon in California
Filter by month, course profile and field size, save races to a shortlist and compare them side by side in the interactive search.