Trail running races in California, United States
Find trail running races in California, United States. Compare 48 upcoming events by date and location. Open a race guide for the course, recorded editions and official entry information where available.
Upcoming running events include 50K races, half marathons, 10K races, 30K races, marathons and 5K races.
Events to explore include Sycamore Canyon Ultras, Marin Ultra Challenge and Pirate’s Cove Timed Races.
51 listed events · 48 with upcoming dates
Upcoming trail running races
48 matching events, earliest date first. Entry availability is shown separately.
Sycamore Canyon Ultras
USAPoway, California
Looped trail ultras and a half marathon at Sycamore Canyon Preserve.
· 100K / 50K / Half marathon
Race details, entry and past editions →Entry information ↗Marin Ultra Challenge
USASausalito, California
Demanding coastal trail ultras through the Marin Headlands and Mount Tamalpais.
· 50K / 50mi
Race details, entry and past editions →Entry information ↗Pirate’s Cove Timed Races
USALake Cuyamaca, California
Timed running and hiking races beside Lake Cuyamaca.
· 12H / 24H / 6H
Race details, entry and past editions →Entry information ↗Redwood (Spring) Trail Run
USAOakland, California
Trail races through Redwood Regional Park with redwood groves and ridge views.
· 30K / 50K / 50yd / 5mi / Half marathon / Marathon
Race details, entry and past editions →Entry information ↗VALENCIA Trail Race
USAValencia, California
Hilly trail races on ridges and through canyons above the Santa Clarita Valley.
· 10K / 50K / Half marathon
Race details, entry and past editions →Entry information ↗Leona Divide
USALake Hughes, California
Mountain trail ultras and a 30K starting in Lake Hughes.
· 100K / 100mi / 30K / 50K / 50mi
Race details, entry and past editions →Entry information ↗Silver Moon Race
USAReedley, California
Evening and overnight races on a flat loop beside the Kings River.
· 100mi / 12H / 12K / 20K / 24H / 40K / 6H
Race details, entry and past editions →Entry information ↗Coyote Two Moon
USAOjai, California
Mountain ultras through Los Padres National Forest above Ojai.
· 100K / 100mi
Race details, entry and past editions →Entry information ↗Grizzly Peak Trail Run
USABerkeley, California
Trail races through the wooded hills of Tilden Regional Park.
· 10K / 30K / 50K / 50yd / Half marathon / Marathon
Race details, entry and past editions →Entry information ↗Born to Run Ultra Marathons
USALos Olivos, California
A trail-running festival on dirt ranch roads and singletrack near Los Olivos.
· 96H
Race details, entry and past editions →Entry information ↗Cinderella Trail Run
USAOakland, California
Trail races through Joaquin Miller and Redwood Regional parks.
· 30K / 50K / 50yd / 8K / Half marathon / Marathon
Race details, entry and past editions →Entry information ↗Malibu Canyon Trail Races
USAMalibu, California
Trail ultras and shorter races in Point Mugu State Park.
· 100K / 30K / 50K / 50mi / Half marathon · Status TBC
Race details, entry and past editions →Western States Endurance Run
USAOlympic Valley, California
The world’s oldest 100-mile trail race, from Olympic Valley to Auburn.
· 100 Mile · Status TBC
Race details, entry and past editions →San Lorenzo River Trail Run
USASanta Cruz, California
Trail races through redwood forests and across the San Lorenzo River.
· 0.25mi / 10K / 30K / 50K / Half marathon / Marathon
Race details, entry and past editions →Entry information ↗Elder Creek Night Runs
USAAnza, California
Night trail races through desert singletrack near Anza.
· 13mi / 30K / 50K / 6H / 9H / 9mi · Status TBC
Race details, entry and past editions →Lost Sierra Endurance Race
USADownieville, California
Mountain trail races through the northern Sierra Nevada around Downieville.
· 7mi
Race details, entry and past editions →Entry information ↗Harding Hustle
USAModjeska Canyon, California
Trail races through the Santa Ana Mountains on Harding Truck Trail.
· 15K / 30K / 50K · Status TBC
Race details, entry and past editions →Redwood Summer Trail Run
USAOakland, California
Trail races through Redwood Regional Park with a short children’s dash.
· 30K / 50K / 50yd / 5mi / Half marathon / Marathon
Race details, entry and past editions →Entry information ↗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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