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70 marathons found for "California", Ultra marathon, United States. Keep the list broad first, then tighten the filters when a race looks realistic.





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Perris, California, United States
28OCT
ULTRA
Machete Muertos 200
Perris, California, United States
October 28, 2026 OCT
San Juan Capistrano, California, United States
31OCT
ULTRA
Caspers Trail Races
San Juan Capistrano, California, United States
October 31, 2026 OCT
California, United States
31OCT
ULTRA
IPA10K Brewfest & Beer Mile
California, United States
October 31, 2026 OCT
California, United States
31OCT
ULTRA
Santa Clarita Trail Race
California, United States
October 31, 2026 OCT
California, United States
01NOV
ULTRA
Joshua Tree Half Marathon
California, United States
November 1, 2026 NOV
Granite Bay, California, United States
06NOV
ULTRA
NorCal Backyard Ultra
Granite Bay, California, United States
November 6, 2026 NOV
Long Beach, California, United States
13NOV
ULTRA
Camp Turkey Terror: Night- Friday the 13th Deranged Turkey Trot: 5K. 10K. Half Marathon by Califlow Runs
Long Beach, California, United States
November 13, 2026 NOV
Long Beach, California, United States
14NOV
ULTRA
Huffin for the Stuffin- Turkey Trot 5K, 10K, & Half Marathon
Long Beach, California, United States
November 14, 2026 NOV
California, United States
14NOV
ULTRA
Pacific Trails California by UTMB (HOKA)
California, United States
November 14, 2026 NOV
Fremont, California, United States
14NOV
ULTRA
ZombieRunner Quarry Lakes
Fremont, California, United States
November 14, 2026 NOV
Long Beach, California, United States
22NOV
ULTRA
Friendsgiving/Barksgiving: Turkey Trot 5K, 10K, Half Marathon by Califlow Runs
Long Beach, California, United States
November 22, 2026 NOV
San Jose, California, United States
26NOV
ULTRA
Zoom Turkey Trot
San Jose, California, United States
November 26, 2026 NOV
California, United States
30NOV
ULTRA
San Joaquin River Trail 100k Run
California, United States
November 30, 2026 NOV
California, United States
05DEC
ULTRA
Death Valley Trail
California, United States
December 5, 2026 DEC
Malibu, California, United States
05DEC
ULTRA
Ray Miller 50/50
Malibu, California, United States
December 5, 2026 DEC
Friant, California, United States
05DEC
ULTRA
San Joaquin River Trail 10k/25k/50k
Friant, California, United States
December 5, 2026 DEC
Goleta, California, United States
12DEC
ULTRA
Holiday Half Marathon, 10K, 5K, Kid's 1-Mile
Goleta, California, United States
December 12, 2026 DEC
Long Beach, California, United States
13DEC
ULTRA
Winter Runderland 5K, 10K, & Half Marathon. Kids Dash
Long Beach, California, United States
December 13, 2026 DEC
Long Beach, California, United States
19DEC
ULTRA
The Jingle Bell Dash Kids Dash, 1 Miler, 5K, 10K and Half Marathon & Santa Paws Doggie Run
Long Beach, California, United States
December 19, 2026 DEC
Huntington Beach, California, United States
20DEC
ULTRA
Santa’s Reindeer Run - 5K, 10K, and Half Marathon
Huntington Beach, California, United States
December 20, 2026 DEC
Long Beach, California, United States
25DEC
ULTRA
Jingle All the Way - Christmas Day 5K, 10K, Half Marathon, Kids Dash by Califlow Runs
Long Beach, California, United States
December 25, 2026 DEC
San Jose, California, United States
31DEC
ULTRA
New Year's One Day
San Jose, California, United States
December 31, 2026 DEC
Escondido, California, United States
09JAN
ULTRA
San Diego 50 & Trail Runs
Escondido, California, United States
January 9, 2027 JAN
Santa Monica Mountains, California, United States
16JAN
ULTRA
Backbone Trail Ultra
Santa Monica Mountains, California, United States
January 16, 2027 JAN

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