Trail 10k races in California, United States
Find trail 10k races in California, United States. Compare 17 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 No Name Trail Races, Trail Run at Sly Park - Fall and Griffith Park Trail Races.
17 listed events · 17 with upcoming dates
Upcoming 10k races
17 matching events, earliest date first. Entry availability is shown separately.
No Name Trail Races
USAAgoura, California
Trail races through Cheeseboro Canyon in the Santa Monica Mountains, with an ultra, half marathon and shorter course.
· 10K
Race details, entry and past editions →Entry information ↗Trail Run at Sly Park - Fall
USAPollock Pines, California
Autumn trail races around Jenkinson Lake at Sly Park Recreation Area.
· 10K
Race details, entry and past editions →Entry information ↗Griffith Park Trail Races
USALos Angeles, California
Hilly trail races on Griffith Park’s singletrack and fire roads, starting at the Merry-Go-Round parking area.
· 10K
Race details, entry and past editions →Entry information ↗Anaheim Turkey Trot 5K/10K
USAAnaheim, California
Anaheim Turkey Trot 5K/10K in Anaheim, United States.
· 10K
Race details, entry and past editions →Entry information ↗Calero Trail Run Winter
USASan Jose, California
Winter trail races on Calero County Park’s singletrack and rolling dirt paths, with several distances from one mile to an ultra.
· 10K
Race details, entry and past editions →Entry information ↗OTHTC High Desert Ultra
USARidgecrest, California
Desert trail races on rolling dirt roads above Ridgecrest, starting and finishing at Cerro Coso Community College.
· 10K
Race details, entry and past editions →Entry information ↗San Joaquin River Trail
USAFriant, California
Trail races following the hills beside Millerton Lake and the San Joaquin River, starting at South Finegold Picnic Area.
· 10K
Race details, entry and past editions →Entry information ↗Woodside Ramble
USAWoodside, California
Trail races through the redwood forest and hills of Huddart County Park.
· 10K
Race details, entry and past editions →Entry information ↗Dirty December Trail Run
USASan Diego, California
Holiday trail races at Sycamore Canyon, with three fixed distances and a timed hill-climb challenge.
· 10K
Race details, entry and past editions →Entry information ↗Brazen New Year’s Day
USACastro Valley, California
New Year’s Day trail races around Lake Chabot in Castro Valley.
· 10K · Status TBC
Race details, entry and past editions →Hacienda Hills Trail Run – Winter
USASan Jose, California
Winter trail races through the hills of Almaden Quicksilver County Park.
· 10K
Race details, entry and past editions →Entry information ↗Folsom Lake Sweetwater Trail Run
USAEl Dorado Hills, California
Trail races beside Folsom Lake, mainly on singletrack with some dirt road.
· 10K
Race details, entry and past editions →Entry information ↗Del Dios Trail Race
USAEscondido, California
Trail races around Lake Hodges, with singletrack and dirt service roads.
· 10K
Race details, entry and past editions →Entry information ↗Fort Ord Trail Run
USASalinas, California
Trail races through Fort Ord National Monument across two days.
· 10K
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
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
Race details, entry and past editions →Entry information ↗San Lorenzo River Trail Run
USASanta Cruz, California
Trail races through redwood forests and across the San Lorenzo River.
· 10K
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.
No separate archived race guides are listed for this selection yet.
View full race archive (0) →Choosing a race in California
The unfiltered upcoming calendar includes events in San Jose (2), Agoura (1), Anaheim (1). Use the town filter to compare locations, then check the race guide for the start venue and organiser’s travel information.
Questions about 10k races in California
Which trail 10k races are coming up in California, United States?
No Name Trail Races is listed for 24 October 2026. Trail Run at Sly Park - Fall is listed for 24 October 2026. Griffith Park Trail Races is listed for 21 November 2026. Check the race guide and organiser’s latest information before making plans.
Where can I find race entry details for California, United States?
Follow the link from the race guide to the organiser or entry provider, where one is available. Check the entry deadline, eligibility and current availability there. A listed race date does not necessarily mean entries are still open.
Why has a race moved out of the upcoming calendar?
Once its listed dates have passed, a race moves to the past-editions view unless another upcoming edition is recorded. Cancelled events also leave the upcoming list. The race guide stays available, and the event returns when a new date is added.