California Ultramarathons
158 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 158 upcoming ultras over the next 12 months. Among complete calendar months, April 2027 has the most listed races, with 25. Most are around Escondido, Auburn, San Diego. The next one is Cahuilla Rez Ultra on November 14 in Anza.
- Nov 202613 races
- Dec 202617 races
- Jan 202711 races
- Feb 202716 races
- Mar 202716 races
- Apr 202725 races
- May 202719 races
- Jun 202713 races
- Jul 20274 races
- Aug 20272 races
- Sep 20276 races
- Oct 202715 races
- Nov 20271 race
November 2026
- 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 · registration closed · 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 12/19Ultra Sport - Backyard UltraHemet, CA · Timed · 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
- 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 GrindPerris, 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 ↗
- Sat 2/6Mt. Umunhum Trail Conquest-WinterSan Jose, CA · 50K · Marathon · 30K · Half Marathon · 7 Miles · Trail · 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 · 13.4 Miles · 13K · 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 2/27Salmon Falls 50KPilot Hill, CA · 50K · Half Marathon · 10K · 5K · register ↗
- Sat 2/27SoCalUltraTrail at Tejon RanchLebec, CA · 100K · 50K · 25K · Half Marathon · 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 3/6Skyline Ridge Trail Run and HikeLa Honda, CA · 50K · 30K · Half Marathon · 12K · Trail · register ↗
- Sat 3/6Solvang CenturyBuellton, CA · 100 Mile · 68 Miles · 50 Mile · from $135 · 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 · 50K · Marathon · Half Marathon · 15K · 10K · 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 4/3Santa Barbara Tough EnoughSanta Barbara, CA · 118 Miles · 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 ↗
- Sat 4/17Woodside/Purisima Creek CrossoverRedwood City, CA · 50K · 35K · Half Marathon · 10K · 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 4/30San Diego 100Lake Cuyamaca, CA · 100 Mile · register ↗
May 2027
- Sat 5/1Harvest & Howitzer Backyard UltraPlacerville, CA · Timed · register ↗
- Sat 5/1Miwok 100K Trail Race presented by The North FaceStinson Beach, CA · 100K · Trail · from $175 · 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 5/8Paiute Meadows Trail RunSusanville, CA · 50K · 30K · 13.6 Miles · 4.5 Miles · Trail · from $45 · registration closed · register ↗
- Sat 5/8Quicksilver Endurance RunsSan Jose, CA · 100K · 50K · 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 5/23Cycle of HopeDublin, CA · 100K · 44 Miles · 23 Miles · 14 Miles · 2K · from $15 · 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 · register ↗
- Sat 6/12Cool Moon 100 Mile Endurance RunCool, CA · 100 Mile · register ↗
- Sat 6/12Cool Moon Trail RacesCool, CA · 100K · 50 Mile · 25 Miles · Trail · 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 ↗
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 ↗
- Sat 9/18Mount Disappointment Mountain RaceMt. Wilson, CA · 50K · 25K · Trail · register ↗
- Fri 9/24Mile Madness Endurance RunAuburn, CA · 10 Mile · 50K · 50 Mile · 100 Mile · 200 Miles · from $75 · register ↗
- Sat 9/25Dick Collins FiretrailsCastro Valley, CA · 100K · 50 Mile · Marathon · register ↗
October 2027
- Fri 10/1Yuba GoldNevada City, CA · 50K · Half Marathon · register ↗
- 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 ↗
- Sun 10/10Bizz JohnsonSusanville, CA · 50K · Marathon · Half Marathon · 10K · from $55 · registration closed · register ↗
- Fri 10/15Furnace Creek 508Santa Clarita, CA · 100+ Mile · from $640 · registration closed · register ↗
- Sat 10/16Lake Hodges Trail FestivalSan Diego, CA · 50K · 25K · 15K · 6.4 Miles · 5K · Trail · from $15 · register ↗
- Thu 10/21Weekend at BurneyBurney, CA · 48 Hour · 24 Hour · 12 Hour · 4.6 Miles · register ↗
- Fri 10/22NorCal Backyard UltraGranite Bay, CA · Timed · register ↗
- Fri 10/22San Diego 200Escondido, CA · 200 Miles · register ↗
- Wed 10/27Machete Muertos 200Perris, CA · 200 Miles · register ↗
- Sat 10/30Borrego Time Trial ClassicBorrego Springs, CA · 24 Hour · 12 Hour · 6 Hour · from $165 · registration closed · register ↗
- Sat 10/30HALLOWEEN SPOOKTACULAR 6 HOUR AND 4 HOUR TRAIL RUNNewport Coast, CA · 6 Hour · 4 Hour · Trail · register ↗
- Sat 10/30Wildwood Canyon Trail RunsYucaipa, CA · 6K · 8 Hour · Trail · register ↗
- Sun 10/31Finish The Ride and Finish The Run Santa ClaritaValencia, CA · 1K · 5K · 10K · 12 Miles · 25 Miles · from $10 · register ↗
November 2027
- Sat 11/6The RubiconOxbow Reservoir, CA · Ultra · 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
More California: Marathons · Half Marathons · 5K Races · 10K Races · All California races · Browse by state