Ultramarathons in California
29 upcoming ultramarathons in California, with dates and field depth before you enter.
By city
Long Beach (100)Los Angeles (83)San Diego (79)San Francisco (54)Sacramento (46)Fresno (25)San Jose (21)Bakersfield (19)Huntington Beach (17)Irvine (15)Granite Bay (14)Ventura (12)Anaheim (11)Perris (10)Temecula (10)Canoga Park (9)Santa Clarita (9)Santa Monica (9)Clovis (8)Oakland (8)Stockton (8)Auburn (7)Castro Valley (7)Escondido (7)Palm Springs (7)Santa Rosa (7)South El Monte (7)Alameda (6)Modesto (6)Redding (6)Riverside (6)Visalia (6)Avalon (5)Chico (5)San Mateo (5)Sausalito (5)Silverado (5)
November 2026
December 2026
January 2027
- Sat, Jan 2Hacienda Hills RunSan Jose5K10KUltra
- Sat, Jan 9Avalon Benefit 50 Mile/50K RunAvalonUltra
- Sat, Jan 9No Hands Trail RunAuburnUltra
- Sat, Jan 23Folsom Lake Sweetwater Trail RunFolsom5K10KUltra
- Sat, Jan 23Golden Gate Trail ClassicSan FranciscoUltra
- Sat, Jan 23La Cuesta Ranch Trail RunSan Luis Obispo10KUltra
- Sun, Jan 24Calico Trail RunBarstowUltra
- Sun, Jan 24Del Dios Trail RaceEscondido5K10KUltra
February 2027
- Sat, Feb 6Fort Ord Trail RunMonterey10KUltra
- Sat, Feb 6Jed Smith UltraSacramentoUltra
- Sat, Feb 6Mt. Umunhum Trail ConquestSan Jose5KUltra
- Sat, Feb 13FOURmidableAuburnUltra
- Sat, Feb 20Redtail RidgeCastro Valley5K10KUltra
- Sat, Feb 27Salmon Falls 50KColomaUltra
- Sat, Feb 27SoCal Ultra Trail at Tejon RanchLebecUltra
March 2027
- Sat, Mar 6Sycamore Canyon Trail RaceSan DiegoUltra
- Sat, Mar 6Way Too Cool 50K Endurance RunCoolUltra
- Sat, Mar 13Folsom South Side Trail RunFolsom5K10KUltra
- Sat, Mar 13Marin Ultra ChallengeSausalitoUltra
- Sat, Mar 13Old West Trail RunsShelter ValleyUltra
- Sat, Mar 13South Hills Single Track Trail RunSan Jose5K10KUltra
- Sat, Mar 20Valencia Trail RaceSanta Clarita10KUltra
- Sun, Mar 21Big AltaMarinwoodUltra