California Ultramarathons
75 upcoming ultras across California, updated nightly. Want radius search and maps? Open these in the Race Finder.
July 2026
- Fri 7/24South Bay 24San Diego, CA · Half Marathon · 1 Mile · Ultra
- Sat 7/25Elder Creek Night RunsAnza, CA · 50K · Other · Half Marathon · Ultra
- Sat 7/25Lost Sierra Endurance RaceDownieville, CA · Ultra · 50K · Other
- Sat 7/25ARAVAIPA's OC Trail Runners Group RunNewport Coast, CA · Ultra
- Sat 7/25Dirty Dozensan pablo, CA · Ultra
- Sat 7/25Dirty Dozen Endurance Run 2026Richmond, CA · Ultra
- Sat 7/25Run and Raft Adventure DayLotus, CA · Ultra
August 2026
- Sat 8/1Riley Park Trail RacesCoto de Caza, CA · Other · Half Marathon · 10K · Ultra · 5K
- Sat 8/8The Napa Lapa Trail AdventureNapa, CA · Ultra
- Sat 8/22Liberty Station Adventure Race Training EventSan Diego, CA · Ultra
- Sat 8/22Desolate PeaksSouth Lake Tahoe, CA · Ultra
September 2026
- Sat 9/12Mendocino Running FestivalMendocino, CA · Half Marathon · Ultra · 10K
- Sat 9/12Spokes and Shadows Night Mountain Bike RaceYucaipa, CA · Ultra
- Fri 9/18Last One Standing at Bradley CaliforniaBradley, CA · Ultra
- Sat 9/19Tierra Redonda Mountain Trail RunBradley, CA · Ultra · Half Marathon · 10K
- Fri 9/25Devils in the Canyon TripSpringdale, CA · Ultra
- Fri 9/25Mammoth TrailfestMammoth Lakes, CA · Ultra
- Fri 9/25Scena Performance Series PassesBerkeley, CA · Ultra
- Sat 9/26Dick Collins FiretrailsCastro Valley, CA · Ultra · 50 Mile · Marathon
- Sat 9/26JP's Backyard Ultra/Hike, The Final EditionNapa, CA · 50K · Ultra
October 2026
- Fri 10/2Back On The Ranch Trail RunLos Olivos, CA · Ultra
- Fri 10/2THE MAMMOTHMammoth Lakes, CA · Ultra
- Sat 10/3Grizzly Gravel & Century Charity RideNorth Fork, CA · Ultra · 100 Mile · Other
- Sat 10/3Cuyamaca 100kJulian, CA · Ultra
- Sat 10/10Ridge Creek Run Club 12 Hour UltraDinuba, CA · Ultra
- Fri 10/16Bike to Hope 2026Petaluma, CA · Ultra · 50K · Other
- Sat 10/17Cahuilla Rez UltraAnza, CA · 100 Mile · Ultra · Half Marathon · 5K
- Sat 10/17Ride Santa Barbara 100Santa Barbara, CA · 100 Mile · Ultra · 50K
- Sun 10/18Lake Tahoe Marathon EventsSouth Lake Tahoe, CA · Marathon · Half Marathon · Ultra · 10K · 5K · 50 Mile
- Wed 10/21Hill Valley 88 Miler ™Hill Valley, CA · Ultra · 1 Mile · Other
- Thu 10/22Weekend at BurneyBurney, CA · Ultra · Other
- Fri 10/23NorCal Backyard UltraGranite Bay, CA · Ultra
- Sat 10/24Island View - Endurance RunGoleta, CA · Other · Ultra · 50K
- Sat 10/24Wildwood Canyon Trail RunYucaipa, CA · Ultra · 5K
- Sat 10/24The RubiconOxbow Reservoir, CA · Ultra
- Sun 10/25Finish The Ride and Finish The Run Santa ClaritaValencia, CA · Other · 5K · 10K · Ultra
- Sat 10/31HALLOWEEN SPOOKTACULAR 6 HOUR AND 4 HOUR TRAIL RUNLaguna Beach, CA · Ultra
November 2026
- Sat 11/7Mermaid Trail Run - 2026Woodside, CA · 5K · 10K · Other · Half Marathon · 1 Mile · Ultra
- Sat 11/7Ride the PointSan Diego, CA · Other · Ultra
- Sun 11/8Sri Chinmoy 6-Hour Race San DiegoSan Diego, CA · Ultra
- Sat 11/14Death Valley CenturyDeath Valley, CA · 100 Mile · 50 Mile · Ultra
- Sat 11/14Go Wild! Santa Cruz 2 Hr, 4 HrSanta Cruz, CA · Ultra
- Sat 11/14Live Oak OdysseyTrabuco Canyon, CA · Ultra
- Sat 11/14Roosters Backyard UltraSan Diego, CA · Ultra
- Sat 11/21The Captain’s RunaroundRiverbank, CA · Ultra
- Thu 11/26Trail Half League by SoCalTrailTopanga, CA · Ultra
- Sat 11/28Boundiful Endurance RunsHemet, CA · Other · Ultra
December 2026
- Tue 12/1SoCal Ultra Runners Grand Prix SeriesSouthern, CA · Ultra
- Fri 12/11The Wrath of Krampus: Last Person StandingYucaipa, CA · Ultra
- Sun 12/20Dirty December Trail RunSan Diego, CA · Marathon · Half Marathon · 10K · Ultra
January 2027
- Sat 1/16Backbone Trail UltraSanta Monica Mountains, CA · Ultra
- Sat 1/16Hops and Spokes Mountain Bike ClassicYucaipa, CA · Ultra
- Fri 1/2924HR "The Grind"Perris, CA · Ultra
- Sat 1/30Sean O'Brien 100K/50M/50K/26.2/30KCalabasas, CA · Ultra · 50 Mile · 50K · Marathon · Other
February 2027
- Fri 2/12Elevate 5k & 12 Hour Race at First Baptist ChurchSanta Maria, CA · 5K · Ultra
- Sat 2/27Will Rogers 24 Hour/12 Hours/6 HourPacific Palisades, CA · 100 Mile · 50K · Other · Ultra · Half Marathon · 10K
- Sat 2/27Sycamore CanyonPoway, CA · Ultra · 50K · Half Marathon
- Sat 2/27SoCalUltraTrail at Tejon RanchLebec, CA · Ultra · 50K · Other
March 2027
- Sat 3/6Solvang CenturyBuellton, CA · 100 Mile · Ultra · 50 Mile
- Sat 3/13Bayshore 70.4 and Sprint TriathlonLong Beach, CA · Ultra · Other
- Fri 3/19Pirate's Cove 6/12/24 hour Run/HikeLake Cuyamaca, CA · Ultra
- Sat 3/20Finish The Ride and Finish The Run Griffith ParkLos Angeles, CA · Other · 5K · 10K · Half Marathon · 50K · 50 Mile · Ultra · 100 Mile
- Sat 3/20JTreequinoxJoshua Tree, CA · Ultra
- Sat 3/27Bad Ass Backyard UltraRio Linda, CA · Ultra
April 2027
- Sat 4/3Bedrock Valley Trail RunsHemet, CA · Marathon · Half Marathon · Other · 10K · 5K · 1 Mile · 50 Mile · Ultra
- Sun 4/4Bedrock Valley Gravel RideHemet, CA · Other · 50 Mile · Ultra · 10K
- Sat 4/17Leona DivideLake Hughes, CA · 100 Mile · Ultra · 50 Mile · 50K · Other
- Sat 4/17Silver Moon RaceReedley, CA · 100 Mile · Other · Ultra · Half Marathon
- Sat 4/17Silver Moon Race: Kings RiverReedley, CA · Ultra · 100 Mile · Other · Half Marathon
- Sun 4/182027 Granfondo San DiegoSan Diego, CA · 100 Mile · Ultra · 50K
- Fri 4/30Coyote Two MoonOjai, CA · 100 Mile · Ultra
- Fri 4/30Harvest & Howitzer Backyard UltraPacerville, CA · Ultra
May 2027
- Sat 5/1Santa Clarita Trail RaceSanta Clarita, CA · 5K · 10K · Other · Ultra · 1 Mile
- Wed 5/12Born to Run Ultra MarathonsLos Olivos, CA · Ultra
June 2027
- Sat 6/5Malibu Canyon Trail RacesMalibu, CA · Ultra · 50 Mile · 50K · Other · Half Marathon
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