Races in CA, United States
85 upcoming races in CA, United States.
85 races found
Noble Canyon 50K/15K
Noble Canyon 50K/15K is a 50 km ultra trail race held in Pine Valley, CA. The event takes place in September 2026.
Mammoth Bar Trail Runs
Mammoth vert." Mammoth Bar Trail Runs take place on the single-track and double-track trails of Mammoth Bar OHV Area in Auburn State Recreation Area, in the Endurance Capital of Auburn, California. Mammoth Bar is known for its steep climbs and descents, as well as it's beautiful American River Canyon views.
Diablo Trail Run
Mount Diablo provides spectacular views of the San Francisco Bay Area and surrounding valleys. The 4 mile course is relatively flat and fast within Mitchell Canyon.
The Honey Badger Half (& 10K/5K)
The Badger's race RETURNS to China Camp State Park in Santa Venetia, CA. If the LIVE option doesn't work for you, we're supporting VIRTUAL as well.
Berkeley Trail Adventure
Berkeley Trail Adventure is a 50 km ultra trail race held in Berkeley, CA. The event takes place in September 2026.
Stevens Creek Striders Reservoir Run
Stevens Creek Striders Reservoir Run is a 11 km trail race held in Cupertino, CA. The event takes place in September 2026.
Mendocino Running Festival
Mendocino Running Festival is a 10 km trail race held in Mendocino, CA. The event takes place in September 2026.
Los Angeles Sunset Relays | 5K & Kid Run
For more Information go to: https://lasunsetrelay.com/ Get ready for an unforgettable evening of trail running at the Los Angeles Sunset Trail Relays & 5K. This race brings together adventure, teamwork, and breathtaking views in one epic event.
Last One Standing at Bradley California
Last One Standing at Bradley California is a trail race held in Bradley, CA. The event takes place in September 2026.
Tierra Redonda Mountain Trail Run
Tierra Redonda Mountain Trail Run is a 20 km trail race held in Bradley, CA. The event takes place in September 2026.
Red Rock Sunset Rumble
Red Rock Sunset Rumble is a 10 km trail race held in Topanga, CA. The event takes place in September 2026.
Mammoth Trailfest
Mammoth Trailfest is a trail race held in Mammoth Lakes, CA. The event takes place in September 2026.
Devils in the Canyon Trip
Devils in the Canyon Trip is a trail race held in Springdale, CA. The event takes place in September 2026.
Mount Disappointment Mountain Race
Mount Disappointment Mountain Race is a 50 km ultra trail race held in Mt. Wilson, CA. The event takes place in September 2026.
Dick Collins Firetrails
Dick Collins Firetrails is a 100 km ultramarathon trail race held in Castro Valley, CA. The event takes place in September 2026.
Bandit Ultra Trail
Bandit Ultra Trail is a 50 km ultra trail race held in Los Angeles (Simi Valley), CA. The event takes place in September 2026.
Double Peak Challenge 10k
Double Peak Challenge 10k is a 10 km trail race held in San Marcos, CA. The event takes place in September 2026.
Ridge Rambler 5k
Ridge Rambler 5k is a 5.0 km trail race held in Bridgeport, CA. The event takes place in September 2026.
JP's Backyard Ultra/Hike, The Final Edition
JP's Backyard Ultra/Hike, The Final Edition is a ultra trail race held in Napa, CA. Now in its fourth and final year, this grassroots event is more than just a race, it’s a celebration of life, resilience, and community.
Ridge Rambler Half Marathon
Ridge Rambler Half Marathon is a marathon trail race held in Bridgeport, CA. The event takes place in September 2026.
THE MAMMOTH
THE MAMMOTH is a trail race held in Mammoth Lakes, CA. The event takes place in October 2026.
Back On The Ranch Trail Run
Back On The Ranch Trail Run is a trail race held in Los Olivos, CA. The event takes place in October 2026.
Cirque Series - Mt Baldy, CA
Cirque Series - Mt Baldy, CA is a trail race held in Mt Baldy, CA. 9.1 miles featuring 3,926' ft vert.
Cuyamaca 100k
Cuyamaca 100k is a 100 km ultramarathon trail race held in Julian, CA. The event takes place in October 2026.
Angeles Crest 100 Mile Endurance Run
Angeles Crest 100 Mile Endurance Run is a 161 km ultramarathon trail race held in Wrightwood, CA. The event takes place in October 2026.
Saddle2Surf
Run 50 miles from Norco, CA (AKA Horsetown USA) to the beautiful California coast in Huntington Beach (Surf City USA). On this run, you will experience the beauty and the beast that is Southern California.
Kokanee Trail Runs
Kokanee Trail Runs is a 10 km trail race held in South Lake Tahoe, CA. The event takes place in October 2026.
Sunset & Cider Trail Races
Sunset & Cider Trail Races is a 50 km ultra trail race held in Auburn, CA. The event takes place in October 2026.
That's No Moon Trail Races
That's No Moon Trail Races is a 50 km ultra trail race held in Silverado, CA. The event takes place in October 2026.
Ruth Anderson Memorial Endurance Run
The course is a 4.5 mi loop around Lake Merced.
Mountain Tiger Diablo
Mountain Tiger Diablo is a 19 km trail race held in Clayton, CA. The event takes place in October 2026.
Bizz Johnson
Set PRs and qualify for the Boston Marathon on this fast, downhill course. Total net downhill loss for the marathon is 929 feet making it the PERFECT course to qualify on.
California Gold Rush Trail Run - Fall
California Gold Rush Trail Run - Fall is a 15 km trail race held in Coloma, CA. The event takes place in October 2026.
Lake Hodges Trail Festival
THE LAKE HODGES TRAIL RUNS & TRAIL DUATHLON- RUN | BIKE | RUN is an annual trail running experience you don't want to miss. We offer something for the whole family to enjoy.
Heart of Cool Trail Run
Heart of Cool Trail Run is a trail race held in Cool, CA. If so, HoC 5k, 10k and half marathon is just what you are looking for.
Cahuilla Rez Ultra
Cahuilla Rez Ultra is a 5.0 km trail race held in Anza, CA. The event takes place in October 2026.
SPACEROCK Trail Race
OUT-OF-THIS-WORLD TRAIL RUNNING SPACEROCK: the final trail running frontier. These are the voyages of trail runners around the world.
Sonoma Fall Classic
Sonoma Fall Classic is a 161 km ultramarathon trail race held in Healdsburg, CA. The event takes place in October 2026.
The Peak 50K, Marathon & Half Marathon
The Peak 50K, Marathon & Half Marathon is a 50 km ultra trail race held in Julian, CA. The event takes place in October 2026.
The Jackalope Lope
Located in Whiskeytown National Recreation Area, an area known for it’s challenging trails and maximum vert. Whether you choose to do the 8.5 mile, 20.5 mile, or 52k - we are convinced this trail run will satisfy your craving for a challenge.
Fleet Feet Fall Classic - Trail October 18th, 2026
LOCATION South Rim Trail Head/ Backside of Bidwell Golf Course Chico, CA US 95928 DISCRIPTION Fleet Feet Chico is pleased to offer two trail races in our beautiful Upper Bidwell Park. The two races will start on the south side of the park down Annies Trail for a fun adventure on the single-track trails.
Weekend at Burney
Weekend at Burney is a 9.7 km trail race held in Burney, CA. The event takes place in October 2026.
NorCal Backyard Ultra
NorCal Backyard Ultra is a ultra trail race held in Granite Bay, CA. The event takes place in October 2026.
San Diego 200
San Diego 200 is a 322 km ultramarathon trail race held in Escondido, CA. The event takes place in October 2026.
Trail Run at Sly Park - Fall
Trail Run at Sly Park - Fall is a 50 km ultra trail race held in Pollock Pines, CA. The event takes place in October 2026.
Island View - Endurance Run
Island View - Endurance Run is a 100 km ultramarathon trail race held in Goleta, CA. The event takes place in October 2026.
Haunted Corner 5K, 10K Pleasant Hill
Haunted Corner 5K, 10K Pleasant Hill is a 10 km trail race held in Pleasant Hill, CA. The event takes place in October 2026.
Wildwood Canyon Trail Run
Wildwood Canyon Trail Run is a 6.0 km trail race held in Yucaipa, CA. The event takes place in October 2026.
The Rubicon
The Rubicon is a trail race held in Oxbow Reservoir, CA. The event takes place in October 2026.
Acorn Creek Trail Run
Acorn Creek Trail Run is a 10 km trail race held in Pilot Hill, CA. The event takes place in October 2026.
Machete Muertos 200
Machete Muertos 200 is a 322 km ultramarathon trail race held in Perris, CA. The event takes place in October 2026.
ZombieRunner Halloween
Run in your Halloween costume along the popular Coyote Creek trail and win a prize. The Half Marathon (CA21023TEB) and Marathon (CA22026TEB) courses are USATF are certified.
HALLOWEEN SPOOKTACULAR 6 HOUR AND 4 HOUR TRAIL RUN
HALLOWEEN SPOOKTACULAR 6 HOUR AND 4 HOUR TRAIL RUN is a trail race held in Laguna Beach, CA. The event takes place in October 2026.
Caspers Trail Races
Caspers Trail Races is a 50 km ultra trail race held in San Juan Capistrano, CA. The event takes place in October 2026.
Haunted Sacramento 5K, 10K
Haunted Sacramento 5K, 10K is a 10 km trail race held in Sacramento, CA. The event takes place in October 2026.
Oakland Tech 5km/1 mile Race/Run/Walk Fundraiser
Support Oakland Tech Students and Programs Join us for a 5K trail race or 1-mile fun run/walk in beautiful Joaquin Miller Park on November 2, 2025 (end of Daylight savings time.) The course winds. This event is a fundraiser for the Oakland Tech PTSA, which provides invaluable funding for student programs and activities.
Lake Chabot Trail Run
The course starts at the Marina and travels around the popular Lake Chabot reservoir and surrounding hills. Great course for first-time trail runners.
The Saddleback Marathon
The Saddleback Marathon is a 25 km trail race held in Silverado, CA. The event takes place in November 2026.
Sri Chinmoy 6-Hour Race - San Diego
Sri Chinmoy 6-Hour Race - San Diego is a trail race held in San Diego, CA. The event takes place in November 2026.
Catalina Island Half-Marathon & 10K
Experience the ultimate California trail half-marathon, an adventure that will test your limits while rewarding you with awe-inspiring beauty. Starting in the charming town of Avalon, the race kicks off with a scenic run past the historic Wrigley Mansion.
Live Oak Odyssey
Live Oak Odyssey is a trail race held in Trabuco Canyon, CA. The event takes place in November 2026.
Roosters Backyard Ultra
Roosters Backyard Ultra is a ultra trail race held in San Diego, CA. The event takes place in November 2026.
Go Wild! Santa Cruz 2 Hr, 4 Hr
Go Wild! Santa Cruz 2 Hr, 4 Hr is a trail race held in Santa Cruz, CA. The event takes place in November 2026.
ZombieRunner Quarry Lakes
The course starts in the scenic Quarry Lakes Regional Recreation area and follows the popular Alameda Creek Trail up to the mouth of Niles Canyon. The Half Marathon (CA19047RS) course is USATF certified.
LA Turkey Trail
LA Turkey Trail is a 10 km trail race held in Los Angeles, CA. The event takes place in November 2026.
Zoom Turkey Trot
Run along the popular Coyote Creek trail Thanksgiving morning and stand to win a turkey. The Half Marathon course is USATF certified (CA21023TEB).
Quad Dipsea
Quad Dipsea is a 6.4 km trail race held in Mill Valley, CA. The event takes place in November 2026.
SoCal Ultra Runners Grand Prix Series
SoCal Ultra Runners Grand Prix Series is a ultra trail race held in Southern, CA. The event takes place in December 2026.
Anza Borrego Cuyamaca 50 Mile Run
Anza Borrego Cuyamaca 50 Mile Run is a 81 km ultra trail race held in Julian, CA. The event takes place in December 2026.
Ray Miller 50/50
Ray Miller 50/50 is a 50 km ultra trail race held in Malibu, CA. The event takes place in December 2026.
The Wrath of Krampus: Last Person Standing
The Wrath of Krampus: Last Person Standing is a trail race held in Yucaipa, CA. The event takes place in December 2026.
Crystal Cove Trail Run
Crystal Cove Trail Run is a 15 km trail race held in Newport Beach, CA. The event takes place in December 2026.
Holiday Hustle 5K, 10K Livermore
Holiday Hustle 5K, 10K Livermore is a 10 km trail race held in Livermore, CA. The event takes place in December 2026.
Holiday Hustle Sacramento 5K, 10K
Holiday Hustle Sacramento 5K, 10K is a 10 km trail race held in Sacramento, CA. The event takes place in December 2026.
Dirty December Trail Run
Dirty December Trail Run is a 10 km trail race held in San Diego, CA. The event takes place in December 2026.
Hops and Spokes Mountain Bike Classic
Hops and Spokes Mountain Bike Classic is a trail race held in Yucaipa, CA. The event takes place in January 2027.
Backbone Trail Ultra
Backbone Trail Ultra is a 109 km ultramarathon trail race held in Santa Monica Mountains, CA. The event takes place in January 2027.
La Cuesta Ranch Trail Run
La Cuesta Ranch Trail Run is a 30 km trail race held in San Luis Obispo, CA. The event takes place in January 2027.
Sean O'Brien 100K/50M/50K/26.2/30K
Sean O'Brien 100K/50M/50K/26.2/30K is a 100 km ultramarathon trail race held in Calabasas, CA. The event takes place in January 2027.
The Ranch 50k
The Ranch 50k is a 50 km ultra trail race held in Escondido, CA. The event takes place in February 2027.
SoCalUltraTrail at Tejon Ranch
SoCalUltraTrail at Tejon Ranch is a 100 km ultramarathon trail race held in Lebec, CA. The event takes place in February 2027.
Will Rogers 24 Hour/12 Hours/6 Hour
Will Rogers 24 Hour/12 Hours/6 Hour is a 50 km ultra trail race held in Pacific Palisades, CA. The event takes place in February 2027.
Sycamore Canyon
Sycamore Canyon is a 100 km ultramarathon trail race held in Poway, CA. The event takes place in February 2027.
The Quest! Adventure Run
The Quest! Adventure Run is a 19 km trail race held in Auburn, CA. The event takes place in March 2027.
Bad Ass Backyard Ultra
Bad Ass Backyard Ultra is a ultra trail race held in Rio Linda, CA. The event takes place in March 2027.