California Ultramarathons
162 upcoming ultras across California, updated nightly. Want radius search and maps? Open these in the Race Finder.
When to race: ultras in California
California has 162 upcoming ultras over the next 12 months. Among complete calendar months, April 2027 has the most listed races, with 24. Most are around Escondido, San Diego, Auburn. The next one is Weekend at Burney on October 22 in Burney.
- Oct 202616 races
- Nov 202621 races
- Dec 202616 races
- Jan 202712 races
- Feb 202714 races
- Mar 202715 races
- Apr 202724 races
- May 202717 races
- Jun 202711 races
- Jul 20275 races
- Aug 20272 races
- Sep 20274 races
- Oct 20275 races
October 2026
- Thu 10/22Weekend at BurneyBurney, CA · 48 Hour · 24 Hour · 12 Hour · 4.6 Miles · register ↗
- Fri 10/23NorCal Backyard UltraGranite Bay, CA · Timed · register ↗
- Fri 10/23San Diego 200Escondido, CA · 200 Miles · register ↗
- Sat 10/24Bike The CoastOceanside, CA · 25 Miles · 50 Mile · 100 Mile · 15 Miles · from $35 · register ↗
- Sat 10/24Island View - Endurance RunGoleta, CA · 100K · 50K · register ↗
- Sat 10/24No Name Trail RacesAgoura, CA · 50K · Half Marathon · 10K · Trail · register ↗
- Sat 10/24OC United 2026 Pumpkin Run and RideFullerton, CA · 5K · 35 Miles · 10 Mile · 11 Miles · from $25 · register ↗
- Sat 10/24Pinkathon Run/Walk for Breast Cancer! San Francisco or Virtual!San Francisco, CA · 5K · 10K · 10 Mile · Half Marathon · Marathon · from $25 · register ↗
- Sat 10/24The RubiconOxbow Reservoir, CA · Ultra · register ↗
- Sat 10/24Trail Run at Sly Park - FallPollock Pines, CA · 50K · Marathon · 17 Miles · Half Marathon · Trail · register ↗
- Sat 10/24Wildwood Canyon Trail RunsYucaipa, CA · 8 Hour · 6K · Trail · register ↗
- Sun 10/25Finish The Ride and Finish The Run Santa ClaritaValencia, CA · 1K · 5K · 10K · 12 Miles · 25 Miles · from $10 · register ↗
- Wed 10/28Machete Muertos 200Perris, CA · 200 Miles · register ↗
- Sat 10/31Borrego Time Trial ClassicBorrego Springs, CA · 24 Hour · 12 Hour · 6 Hour · from $165 · registration closed · register ↗
- Sat 10/31Caspers Trail RacesSan Juan Capistrano, CA · 50K · Marathon · 30K · Half Marathon · 10K · Trail · register ↗
- Sat 10/31HALLOWEEN SPOOKTACULAR 6 HOUR AND 4 HOUR TRAIL RUNNewport Coast, CA · 6 Hour · 4 Hour · Trail · register ↗
November 2026
- Sat 11/72026 Kaiser Permanente Get Fit FestivalIrvine, CA · 36 Miles · 5K · 30 Miles · from $35 · register ↗
- Sat 11/7Bayshore Sprint and 70.4Long Beach, CA · 32 Miles · from $165 · register ↗
- Sat 11/7Chino Hills Trail Run Series FallBrea, CA · 50K · 30K · 10K · Trail · register ↗
- Sat 11/7Lake Chabot Trail RunCastro Valley, CA · 4.8 Miles · Half Marathon · 30K · Marathon · 50K · Trail · from $25 · register ↗
- Sat 11/7Mermaid Trail Run - 2026Woodside, CA · 5K · 6 Miles · 9 Miles · Half Marathon · 1 Mile · Trail · register ↗
- Sat 11/7Mt. Tam Trail RunStinson Beach, CA · 30.5 Miles · 18.5 Miles · 13.7 Miles · 10K · Trail · registration closed · register ↗
- Sat 11/7Rio Del Lago 100 Mile + 50K Endurance RunsGranite Bay, CA · 100 Mile · 50K · register ↗
- Sun 11/8Sri Chinmoy 6-Hour Race San DiegoSan Diego, CA · Ultra · from $80 · register ↗
- Sat 11/14Cahuilla Rez UltraAnza, CA · 100 Mile · 24 Hour · Half Marathon · 12 Hour · 6 Hour · register ↗
- Sat 11/14Death Valley CenturyDeath Valley, CA · 100 Mile · 50 Mile · 46 Miles · 100K · from $170 · register ↗
- Sat 11/14Go Wild! Santa Cruz 2 Hr, 4 HrSanta Cruz, CA · 4 Hour · 2 Hour · register ↗
- Sat 11/14Live Oak OdysseyTrabuco Canyon, CA · 8 Hour · 6 Hour · 3 Hour · register ↗
- Sat 11/14Mind Over MountainsAuburn, CA · 50K · Half Marathon · 10K · 5K · register ↗
- Sat 11/14Roosters Backyard UltraSan Diego, CA · Timed · register ↗
- Sat 11/21ARAVAIPA's OC Trail Runners Group RunNewport Coast, CA · Ultra · Trail · register ↗
- Sat 11/21Griffith Park Trail MarathonLos Angeles, CA · 50K · Marathon · 30K · Half Marathon · 10K · Trail · register ↗
- Sat 11/21Harvest Hustle 5K 2026 Grace Church San DiegoSan Diego, CA · 150 Miles · from $45 · register ↗
- Sat 11/21The Captain’s RunaroundRiverbank, CA · 8 Hour · 6 Hour · 4 Hour · 2 Hour · from $12 · register ↗
- Thu 11/26Trail Half League by SoCalTrailTopanga, CA · Ultra · Trail · register ↗
- Sat 11/28Boundiful Endurance RunsHemet, CA · 24 Hour · 12 Hour · 6 Hour · 3 Hour · register ↗
- Sat 11/28Quad DipseaMill Valley, CA · 28.4 Miles · register ↗
December 2026
- Tue 12/1SoCal Ultra Runners Grand Prix SeriesSouthern, CA · Ultra · register ↗
- Sat 12/5Anza Borrego Cuyamaca 50 Mile RunJulian, CA · 50 Mile · register ↗
- Sat 12/5Calero Trail Run - WinterSan Jose, CA · 50K · Marathon · 25K · Half Marathon · 15K · Trail · register ↗
- Sat 12/5DIRTY 30 XL - GRAVEL vs MTBEscondido, CA · 30 Miles · from $115 · register ↗
- Sat 12/5Over The Hill Track Club High Desert 50K & 30KRidgecrest, CA · 50K · 30K · 10K · register ↗
- Sat 12/5Ray Miller 50/50Malibu, CA · 50 Mile · 50K · 30K · register ↗
- Sat 12/5San Joaquin River Trail 10k/25k/50kFriant, CA · 50K · 25K · 10K · Trail · from $45 · register ↗
- Sun 12/6Hunter S. Thompson Fear & LoathingSan Francisco, CA · 50 Mile · 50K · register ↗
- Fri 12/11The Wrath of Krampus: Last Person StandingYucaipa, CA · Timed · register ↗
- Sat 12/12DoomsdayCool, CA · 50K · Half Marathon · register ↗
- Sat 12/12Lunatic Loop 6/12 hour runRamona, CA · 12 Hour · 6 Hour · register ↗
- Sat 12/12Robin Ames Foundation 100 Mile Solo RunSan Clemente, CA · 100 Mile · register ↗
- Sat 12/19Magnolia Magic River Trail RunPilot Hill, CA · 50K · Marathon · 30K · Half Marathon · 12K · Trail · register ↗
- Sat 12/19Woodside RambleWoodside, CA · 50K · 23.1 Miles · Half Marathon · 10K · registration closed · register ↗
- Sun 12/20Dirty December Trail RunSan Diego, CA · Marathon · Half Marathon · 10K · 6 Hour · Trail · register ↗
- Thu 12/31New Year's One DaySan Jose, CA · 100 Mile · 50 Mile · 30 Miles · 5K · from $90 · register ↗
January 2027
- Fri 1/1Badwater 267 VRDeath Valley, CA · 100+ Mile · from $93 · register ↗
- Sat 1/2Hacienda Hills Trail Run - WinterSan Jose, CA · 50K · Marathon · 30K · Half Marathon · 9 Miles · Trail · register ↗
- Sat 1/2Lasse Viren Trail RacesMalibu, CA · 50K · 20K · 10K · 5K · Trail · register ↗
- Sat 1/9Avalon Benefit 50 Mile/50K RunAvalon, CA · 50 Mile · 50K · from $135 · register ↗
- Sat 1/9No Hands Trail RunAuburn, CA · 50K · 35K · Half Marathon · 8K · Trail · register ↗
- Sat 1/9San Diego 50 & Trail RunsEscondido, CA · 50 Mile · Marathon · Half Marathon · 10 Mile · 5 Miles · Trail · from $15 · register ↗
- Sun 1/17SPASM Crystal Springs Trail RunWoodside, CA · 5 Miles · Half Marathon · 22 Miles · Marathon · 50K · Trail · from $60 · register ↗
- Sat 1/23Folsom Lake Sweetwater Trail RunFolsom, CA · 38 Miles · 50K · Marathon · 30K · Half Marathon · Trail · register ↗
- Sun 1/24Calico Trail RunYermo, CA · 50K · 30K · Trail · register ↗
- Sun 1/24Del Dios Trail RaceEscondido, CA · 50K · Half Marathon · 10K · 5K · 22 Miles · Trail · register ↗
- Fri 1/2924HR "The Grind"Perris, CA · Ultra · register ↗
- Sat 1/30Sean O'Brien 100K/50M/50K/26.2/30KCalabasas, CA · 100K · 50 Mile · 50K · Marathon · 30K · register ↗
February 2027
- Sat 2/6Dalton Canyon UltraGlendora, CA · 50K · 10K · from $65 · register ↗
- Sat 2/6Fort Ord Trail RunSalinas, CA · 50K · Trail · register ↗
- Sat 2/6Golden Gate Trail RunSausalito, CA · 8K · Half Marathon · 30K · Marathon · 50K · Trail · from $60 · register ↗
- Sat 2/6Jed SmithSacramento, CA · 50 Mile · 50K · Marathon · 30K · Half Marathon · register ↗
- Sat 2/6Monterey UltraMonterey, CA · 50 Mile · register ↗
- Fri 2/12Elevate 5k & 12 Hour Race at First Baptist ChurchSanta Maria, CA · 5K · 12 Hour · from $22 · register ↗
- Sat 2/13Camino Real DoubleLake Forest, CA · 200 Miles · from $149 · register ↗
- Sat 2/13FOURmidableAuburn, CA · 50K · 35K · 13K · 13.4 Miles · from $40 · register ↗
- Sat 2/13The Ranch 50kEscondido, CA · 50K · Half Marathon · register ↗
- Sat 2/20Chabot/Redtail Ridge Trail RunCastro Valley, CA · 50K · 35K · Half Marathon · 10K · 5K · Trail · register ↗
- Sat 2/20Happy Chinese New YearSAN DIEGO, CA · 50 Mile · register ↗
- Sat 2/20Montara Mountain Trail RunPacifica, CA · 10K · Half Marathon · 20.7 Miles · Marathon · 50K · Trail · from $60 · register ↗
- Sat 2/27SoCalUltraTrail at Tejon RanchLebec, CA · 100K · 50K · 25K · 11K · register ↗
- Sat 2/27Will Rogers 24 Hour/12 Hours/6 HourPacific Palisades, CA · 100 Mile · 100K · 50 Mile · 50K · 30K · register ↗
March 2027
- Sat 3/6Solvang CenturyBuellton, CA · 100 Mile · 68 Miles · 50 Mile · from $135 · registration closed · register ↗
- Sat 3/6Sycamore CanyonPoway, CA · 100K · 50K · Half Marathon · register ↗
- Sat 3/6Way Too Cool 50K & 10 Mile Endurance Runs 2027Cool, CA · 10 Mile · 50K · register ↗
- Sat 3/13Marin Ultra ChallengeSausalito, CA · 50 Mile · 50K · register ↗
- Sat 3/13Nine Trails 35 Mile Endurance RunSanta Barbara, CA · 35 Miles · 17 Miles · Trail · register ↗
- Sat 3/13Old West Trail RunsJulian, CA · 50K · Marathon · Half Marathon · Trail · register ↗
- Fri 3/19Pirate's Cove 6/12/24 hour Run/HikeLake Cuyamaca, CA · 24 Hour · 12 Hour · 6 Hour · register ↗
- Fri 3/19The Big AltaMarinwood, CA · 50K · register ↗
- Sat 3/20Finish The Ride and Finish The Run Griffith ParkLos Angeles, CA · 1K · 5K · 10K · 15K · Half Marathon · from $10 · register ↗
- Sat 3/20JTreequinoxJoshua Tree, CA · 12 Hour · register ↗
- Sat 3/20Rattlesnake DickCool, CA · 50K · 25K · 10K · register ↗
- Sat 3/20Redwood (Spring) Trail RunOakland, CA · 5 Miles · Half Marathon · 18.3 Miles · Marathon · 50K · Trail · from $30 · register ↗
- Sat 3/20VALENCIA Trail RaceValencia, CA · 50K · Half Marathon · 10K · Trail · from $67 · register ↗
- Sat 3/27Bad Ass Backyard UltraRio Linda, CA · 12 Hour · Timed · register ↗
- Sat 3/27Great Shasta Rail TrailMcCloud, CA · 50K · 30K · 10K · Trail · register ↗
April 2027
- Sat 4/3American River Endurance Runs 2027Folsom, CA · 50 Mile · 25 Miles · 10 Mile · register ↗
- Sat 4/3Bedrock Valley Trail RunsHemet, CA · Marathon · Half Marathon · 15K · 10K · 5K · Trail · from $15 · register ↗
- Sat 4/3Diablo Trails Challenge 2027Walnut Creek, CA · Half Marathon · 50K · 10K · 5K · Trail · register ↗
- Sat 4/3Release the Kraken 5K. 10K. 18 Miler & 50KLong Beach, CA · 5K · 10K · 18 Miles · 30 Miles · from $40 · register ↗
- Sat 4/3Solvang Double CenturyBuellton, CA · 195 Miles · from $189 · registration closed · register ↗
- Sat 4/10Lake Sonoma 100K, 50K & TS HalfHealdsburg, CA · 100K · 50K · Half Marathon · register ↗
- Sat 4/10OriflammeJulian, CA · 50K · register ↗
- Fri 4/16Bay Area 100 Training CampBerkeley, CA · Ultra · register ↗
- Fri 4/16Run4Kids Ultra Running PartyCorona, CA · 6 Hour · 12 Hour · 24 Hour · Half Marathon · Marathon · from $59 · register ↗
- Sat 4/17Leona DivideLake Hughes, CA · 100 Mile · 100K · 50 Mile · 50K · 30K · register ↗
- Sat 4/17Mendocino Coast 50KMendocino, CA · 50K · register ↗
- Sat 4/17Outlands Endurance RacesPilot Hill, CA · 50 Mile · 50K · 25K · register ↗
- Sat 4/17SPASM Lake Chabot Trail RunCastro Valley, CA · 5 Miles · Half Marathon · 17.9 Miles · Marathon · 50K · Trail · from $60 · register ↗
- Sat 4/17Silver Moon RaceReedley, CA · 100 Mile · 40K · 24 Hour · 20K · 12K · register ↗
- Sat 4/17Silver Moon Race: Kings RiverReedley, CA · 6 Hour · 12 Hour · 24 Hour · 100 Mile · 12K · from $70 · register ↗
- Sun 4/18Mountains 2 Beach Marathon and HalfVentura, CA · Marathon · Half Marathon · 10K · 5K · 29.3 Miles · from $26 · register ↗
- Sat 4/24Horseshoe Lake Trail RunLos Gatos, CA · 5.1 Miles · Half Marathon · 30K · Marathon · 50K · Trail · from $60 · register ↗
- Sat 4/24Machete Trail Madness 100kPerris, CA · 100K · 50K · 10K · Trail · register ↗
- Sat 4/24SoCal Redwood RaceBrea, CA · 12 Hour · 6 Hour · 3 Hour · register ↗
- Sun 4/25Orange County Multisport FestivalMission Viejo, CA · 32 Miles · 50K · 0.9 Miles · 5K · from $45 · register ↗
- Fri 4/30Big Burro 24HRBig Bear City, CA · 24 Hour · register ↗
- Fri 4/30Coyote Two MoonOjai, CA · 100 Mile · 100K · register ↗
- Fri 4/30Harvest & Howitzer Backyard UltraPlacerville, CA · Timed · register ↗
- Fri 4/30San Diego 100Lake Cuyamaca, CA · 100 Mile · register ↗
May 2027
- Sat 5/1Miwok 100K Trail Race presented by The North FaceStinson Beach, CA · 100K · Trail · from $175 · registration closed · register ↗
- Sat 5/1Santa Clarita Trail RaceSanta Clarita, CA · 5K · 10K · 15K · 30K · 60K · Trail · from $45 · register ↗
- Sat 5/1Sea to SkyJenner, CA · 100K · 75K · 50K · 25K · register ↗
- Sat 5/1Wild Wild West Marathon & UltraLone Pine, CA · 50 Mile · 50K · Marathon · 10 Mile · register ↗
- Sat 5/8Grizzly Peak Trail RunBerkeley, CA · 10K · Half Marathon · 30K · Marathon · 50K · Trail · from $60 · register ↗
- Sat 5/8Paiute Meadows Trail RunSusanville, CA · 50K · 30K · 13.6 Miles · 4.5 Miles · Trail · from $45 · registration closed · register ↗
- Wed 5/12Born to Run Ultra MarathonsLos Olivos, CA · Ultra · register ↗
- Sat 5/15Napa Wilderness Trail RunsNapa, CA · 50K · 30K · Half Marathon · 10K · Trail · register ↗
- Sat 5/15O'Neill Park Trail RacesTrabuco Canyon, CA · 50K · Marathon · 30K · Half Marathon · 10K · Trail · register ↗
- Sat 5/15Rim Rock 50 Mile Trail ChallengeNapa, CA · 50 Mile · Trail · register ↗
- Sat 5/22Bishop High Sierra UltrasBishop, CA · 100K · 50 Mile · 55K · 6K · register ↗
- Sat 5/22Mission Trails Twilight RunsSantee, CA · 50K · 25K · 5K · Trail · register ↗
- Sat 5/22Run for AmmaLos Gatos, CA · 50K · 30K · 10K · register ↗
- Sun 5/23Diablo Trail RunClayton, CA · 4 Miles · 10 Mile · Half Marathon · Marathon · 30.4 Miles · Trail · from $50 · register ↗
- Sat 5/29Pacifico UltraPalmdale, CA · 50K · Half Marathon · register ↗
- Sat 5/29Western States Training Camp - Memorial WeekendForesthill, CA · Ultra · register ↗
- Sun 5/30Cinderella Trail RunOakland, CA · 8K · Half Marathon · 30K · Marathon · 50K · Trail · from $60 · register ↗
June 2027
- Sat 6/52027 Giro di San DiegoEscondido, CA · 95 Miles · 56 Miles · 32 Miles · 20 Miles · from $57 · register ↗
- Sat 6/5Malibu Canyon Trail RacesMalibu, CA · 100K · 50 Mile · 50K · 30K · Half Marathon · Trail · register ↗
- Sat 6/5PCT 50Cleveland National Forest, CA · 50 Mile · register ↗
- Sat 6/5Shadow of the Giants 50k & 20k RunFish Camp, CA · 50K · 20K · from $99 · register ↗
- Sat 6/12Bay Area 100Berkeley, CA · 100 Mile · register ↗
- Sat 6/12Bike the Coast VenturaVentura, CA · 20 Miles · 30 Miles · 40 Miles · 65 Miles · from $45 · registration closed · register ↗
- Fri 6/18Burney Mountain 100Cassel, CA · 100 Mile · Trail · register ↗
- Sat 6/19Headwaters Trail RunsMount Shasta, CA · 52K · 34K · 10K · Trail · register ↗
- Mon 6/21Tahoe 200 Endurance RunLake Tahoe, CA · 200 Miles · register ↗
- Thu 6/24Run the Robie (100 Mile relay )Auburn, CA · 1 Mile · 100 Mile · from $50 · register ↗
- Sat 6/26Western StatesOlympic Valley, CA · 100 Mile · register ↗
July 2027
- Sat 7/10San Lorenzo River Trail RunSanta Cruz, CA · 10K · Half Marathon · 30K · Marathon · 50K · Trail · from $60 · register ↗
- Sat 7/17Elder Creek Night RunsAnza, CA · 50K · 30K · Half Marathon · 9 Miles · 9 Hour · register ↗
- Fri 7/23Lost Sierra Endurance RaceDownieville, CA · Ultra · register ↗
- Fri 7/23South Bay 24 HRSan Diego, CA · 24 Hour · 12 Hour · 6 Hour · register ↗
- Sat 7/24Harding HustleModjeska Canyon, CA · 50K · 30K · 15K · register ↗
August 2027
- Sun 8/1Skyline 50k Endurance RunCastro Valley, CA · 50K · Half Marathon · register ↗
- Sat 8/14Redwood (Summer) Trail RunOakland, CA · 5 Miles · Half Marathon · 30K · Marathon · 50K · Trail · from $60 · register ↗
September 2027
- Sat 9/11Mendocino Running FestivalMendocino, CA · Half Marathon · 12 Hour · 10K · 6 Hour · register ↗
- Sat 9/18Backbone Trail UltraSanta Monica Mountains, CA · 68 Miles · Trail · register ↗
- Sat 9/18Chupacabra 5K. 10K. 18 Miler & 50KLong Beach, CA · 5K · 10K · 18 Miles · 30 Miles · from $40 · register ↗
- Fri 9/24Mile Madness Endurance RunAuburn, CA · 10 Mile · 50K · 50 Mile · 100 Mile · 200 Miles · from $75 · register ↗
October 2027
- Sat 10/2Angeles Crest 100 Mile Endurance RunAltadena, CA · 100 Mile · 100K · register ↗
- Sat 10/2Cuyamaca 100kJulian, CA · 100K · register ↗
- Mon 10/4Hill Valley 88 Miler ™Hill Valley, CA · 88 Miles · 1 Mile · 0.5 Miles · from $15 · register ↗
- Fri 10/15Furnace Creek 508Santa Clarita, CA · 100+ Mile · from $640 · register ↗
- Sat 10/16Lake Hodges Trail FestivalSan Diego, CA · 50K · 25K · 15K · 6.4 Miles · 5K · Trail · from $15 · registration closed · register ↗
Planning a race
- The adventure listrim to rim, the big rounds, and routes worth planning a year around
- Getting inhow entry works for the races that sell out or ballot
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