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 Weekend at Burney, No Name Trail Races and Trail Run at Sly Park - Fall.
51 listed events · 48 with upcoming dates
Upcoming trail running races
48 matching events, earliest date first. Entry availability is shown separately.
Weekend at Burney
USACassel, California
Timed trail races and a short loop race near Baum Lake, based at Burney Mountain Guest Ranch.
· 48H
Race details, entry and past editions →Entry information ↗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 / 50K / Half marathon
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 / 17mi / 50K / 5K / 8mi / Half marathon / Marathon
Race details, entry and past editions →Entry information ↗Wildwood Canyon Trail Runs
USAYucaipa, California
An eight-hour trail challenge and a shorter race on a hilly loop through Wildwood Canyon State Park.
· 6K / 8H
Race details, entry and past editions →Entry information ↗Machete Muertos Trail Races
USAPerris, California
Mountain trail races around Lake Perris for the Día de los Muertos weekend. The 200-mile race starts on Wednesday, with the shorter races starting on…
· 200mi
Race details, entry and past editions →Entry information ↗Chino Hills Trail Run — Fall
USABrea, California
Autumn trail races through chaparral, oak woodland and the hills of Chino Hills State Park.
· 30K / 50K
Race details, entry and past editions →Entry information ↗Rio Del Lago Endurance Runs
USAGranite Bay, California
Trail ultras starting at Beals Point, following the lakes and foothills between Folsom and Auburn.
· 100mi / 50K
Race details, entry and past editions →Entry information ↗Saddleback Marathon
USABlue Jay, California
Saddleback November mountain marathon.
· Marathon
Race details, entry and past editions →Entry information ↗Live Oak Odyssey
USATrabuco Canyon, California
Timed trail races on a hilly loop through the oak and sycamore woodland of O’Neill Regional Park.
· 3H / 6H / 8H
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 / 30K / 50K / Half marathon / Marathon
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 / 1mi / 5K
Race details, entry and past editions →Entry information ↗Boundiful Endurance Runs
USAHemet, California
Fixed-distance and timed endurance running on a hard-packed dirt loop through a Southern California fruit and nut farm.
· 100mi / 12H / 24H / 3H / 6H
Race details, entry and past editions →Entry information ↗Anza Borrego Cuyamaca 50 Mile Run
USAJulian, California
A point-to-point trail ultra from the mountains near Julian to the desert finish at Stagecoach Trails RV Resort.
· 50mi
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 / 15K / 1mi / 25K / 50K / 5K / Half marathon / Marathon
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 / 30K / 50K
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 / 25K / 50K
Race details, entry and past editions →Entry information ↗Doomsday
USACool, California
Trail races from the Cool Staging Area, with a 50K ultra and half marathon through the surrounding foothills.
· 50K / Half marathon
Race details, entry and past editions →Entry information ↗Lunatic Loop
USARamona, California
Timed trail races on a hilly loop at a private venue in Ramona, with early and late six-hour starts.
· 12H / 6H Early / 6H Late
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 / 35K / 50K / Half marathon
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 / 6H / Half marathon / Marathon
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 / 5K / Half marathon · 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 / 1mi / 30K / 50K / 5K / 9mi / Half marathon / Marathon
Race details, entry and past editions →Entry information ↗No Hands Trail Run
USAAuburn, California
Trail races in the American River canyon near Auburn.
· 13.5mi / 35K / 50K / 8K
Race details, entry and past editions →Entry information ↗San Diego 50 & Trail Runs
USAEscondido, California
Trail races through San Pasqual Valley and around Lake Hodges, with shorter and junior options.
· 10mi / 1mi / 5.4mi / 50mi / 5K / Marathon
Race details, entry and past editions →Entry information ↗Crystal Springs Winter Trail Run
USAWoodside, California
Winter trail races through Huddart Park and the coastal redwoods.
· 35K / 50K / 50yd / 8K / Half marathon / Marathon
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 / 1mi / 30K / 50K / 5K / 9mi / Half marathon / Marathon
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 / 50K / 5K / Half marathon
Race details, entry and past editions →Entry information ↗Fort Ord Trail Run
USASalinas, California
Trail races through Fort Ord National Monument across two days.
· 50K
Race details, entry and past editions →Entry information ↗Monterey Ultra
USAMonterey, California
A 50-mile trail race through Fort Ord National Monument.
· 50mi
Race details, entry and past editions →Entry information ↗Will Rogers Ultra
USAPacific Palisades, California
Timed and fixed-distance trail races on a loop at Will Rogers State Historic Park.
· 100K / 12H / 24H / 50mi / 6H
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.
Big Sur Trail Marathon
USABig Sur, California
Big Sur Trail Marathon in Big Sur.
Next date not listed
Race guide and recorded editions →CTR Diablo Trail Run
USAClayton, California
CTR Diablo Trail Run in Clayton.
Next date not listed
Race guide and recorded editions →Sonoma Fall Classic — Lake Sonoma
USAGeyserville, California
The Lake Sonoma trail programme now held in autumn, with long ultras and shorter routes around the lake and surrounding hills.
Next date not listed
Race guide and recorded editions →Choosing a race in California
The unfiltered upcoming calendar includes events in Oakland (3), Escondido (2), San Jose (2). Use the town filter to compare locations, then check the race guide for the start venue and organiser’s travel information.
Questions about trail running races in California
Which trail running races are coming up in California, United States?
Weekend at Burney is listed for 22 October 2026. No Name Trail Races is listed for 24 October 2026. Trail Run at Sly Park - Fall is listed for 24 October 2026. Check the race guide and organiser’s latest information before making plans.
What running distances are listed in California, United States?
Look for 50K races, half marathons, 10K races, 30K races, marathons and 5K races in the upcoming listings. If an event offers several distances, check the individual race guide to choose the edition and distance you want to enter.
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.