Ultramarathons in California, United States
Find ultramarathons in California, United States. Compare 43 upcoming events by date and location. Open a race guide for the course, recorded editions and official entry information where available.
Events to explore include Leona Divide, Silver Moon Race and Coyote Two Moon.
Compare running races by distance, date and surface, from shorter road events to trail races and ultras.
44 listed events · 43 with upcoming dates
Upcoming ultramarathons
43 matching events, earliest date first. Entry availability is shown separately.
Leona Divide
USALake Hughes, California
Mountain trail ultras and a 30K starting in Lake Hughes.
Date listed · latest organiser confirmation not yet checked.
Silver Moon Race
USAReedley, California
Evening and overnight races on a flat loop beside the Kings River.
Date listed · latest organiser confirmation not yet checked.
Coyote Two Moon
USAOjai, California
Mountain ultras through Los Padres National Forest above Ojai.
Date listed · latest organiser confirmation not yet checked.
Grizzly Peak Trail Run
USABerkeley, California
Trail races through the wooded hills of Tilden Regional Park.
Date listed · latest organiser confirmation not yet checked.
Born to Run Ultra Marathons
USALos Olivos, California
A trail-running festival on dirt ranch roads and singletrack near Los Olivos.
Date listed · latest organiser confirmation not yet checked.
Cinderella Trail Run
USAOakland, California
Trail races through Joaquin Miller and Redwood Regional parks.
Date listed · latest organiser confirmation not yet checked.
Malibu Canyon Trail Races
USAMalibu, California
Trail ultras and shorter races in Point Mugu State Park.
· Status TBC
Date listed · latest organiser confirmation not yet checked.
Western States Endurance Run
USAOlympic Valley, California
The world’s oldest 100-mile trail race, from Olympic Valley to Auburn.
· Status TBC
Date listed · latest organiser confirmation not yet checked.
San Lorenzo River Trail Run
USASanta Cruz, California
Trail races through redwood forests and across the San Lorenzo River.
Date listed · latest organiser confirmation not yet checked.
Elder Creek Night Runs
USAAnza, California
Night trail races through desert singletrack near Anza.
· Status TBC
Date listed · latest organiser confirmation not yet checked.
Harding Hustle
USAModjeska Canyon, California
Trail races through the Santa Ana Mountains on Harding Truck Trail.
· Status TBC
Date listed · latest organiser confirmation not yet checked.
Lost Sierra Endurance Race
USADownieville, California
Mountain trail races through the northern Sierra Nevada around Downieville.
Date listed · latest organiser confirmation not yet checked.
Redwood Summer Trail Run
USAOakland, California
Trail races through Redwood Regional Park with a short children’s dash.
Date listed · latest organiser confirmation not yet checked.
Race archive
Past races and previous editions
Looking back at a race? Browse the guides below for recorded editions. This section also includes events awaiting a new date and cancelled editions. Previous editions of races in the upcoming calendar are available through their race guides above.
Open the race archive to browse past events and races awaiting a new date.
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