Trail Running Calendar California 2026-2027

A map-based mystery run from Ghirardelli Square through classic San Francisco neighborhoods, with team navigation, chip-tagged checkpoints, 5K and 10K options, age and gender divisions, and post-event snacks and socializing.

Multiple trail distances from 5K to 50K on very hilly single track and dirt roads at Rancho Cañada del Oro. The course features scenic foothill views, two aid stations, enforced cutoffs, and finishers receive a medal.

Two trail races at Elings Park in Santa Barbara on July 4, 2026 featuring a 5K and a 2K kids run that adults may enter; registration fees are $40 and $20 respectively.

The Run to the Beach - Tahoe Vista will take place in Tahoe Vista on Saturday 4 July 2026. You can run between 5 and 10 kilometers.

A 3-mile walk and 5-mile run around Lower Twin Lakes at about 7,000 feet elevation, held on slightly hilly graded and paved roads with two aid stations. Proceeds support the Coleville High School Sports Boosters.

Join a monthly community event in Richmond featuring a conversational hike or a self paced trail run. This inclusive series held on first Saturdays brings people together for outdoor movement and connection.

A series of all-comers cross-country meets in Palmdale running July 9 through August 6, featuring a coed relay and four weekly Thursday races. Main events include a 3 miles open race and a 1 kilometer kids run.

Experience a scenic trail run through ancient Coastal Redwoods and lush river canyons in Santa Cruz. Choose from multiple distances including a 50K and marathon with several river crossings.

A 5k uphill race on the slopes of Mt. Baldy Resort that climbs about 1,500 feet to the Top of the Notch, with a finish area featuring a BBQ, bar, and live music and lift access back down for bib holders.

A half marathon in Auburn, CA that mixes running with extreme ironing. Participants carry their own boards and irons, perform recorded ironing stops at specified local sites, and must be entirely self-supported.

Trail race in Tarzana, Los Angeles with a half marathon, a new two person half marathon relay, a 10K and a 5K on Dirt Mulholland fire road. The course is exposed with rolling terrain and likely hot, dry summer conditions.

A seven‑week series of Tuesday night fun runs in Redding from July 14 to August 25, 2026, with two distance options each week and a single punch card that covers all seven events.

Into the Wild is a 5k trail run at Saddleback Wilderness on July 15, 2026, over fire roads and single track with 300 ft of elevation gain. Entry is limited to 150 runners and there is no race day registration.

Trail races on the Harding Truck Trail in the Santa Ana Mountains offering 50K, 30K and 15K courses with significant elevation gain, aid stations, required shuttle access and typically hot July conditions.

Tough Mugu is a coastal mountain trail running event at Point Mugu State Park on July 18, 2026 offering a 25k and shorter course options. The event includes chip timed results, a finisher medal and race tee, and a cash prize for the 25k pod..

Hot to Trot offers 5k, 10k, 15k and a half marathon in Griffith Park on July 18, 2026. Routes run on a hard packed dirt horse trail with an aid station at the turnaround and free parking at Crystal Springs Picnic Area.

Trail runs on Mt. Tam near Stinson Beach with 10K, Half, and 30K options across technical trails and major elevation changes; cupless aid stations, chip timing, and a 300-runner field.

Multiple distance options on marked out-and-back loops at Whittier Narrows with on-course aid, finisher medals, photos, videos, live results, and an event app.

A 24 hour loop ultrarunning event at Montgomery Waller Community Park featuring a 1.22 mile mixed-surface loop, multiple timed race options, on-course aid and campsite facilities, finisher medals and a $1500 purse for 125 miles.

A trail event in Downieville, California with 25K, 50K, and 100K options on mostly singletrack. Courses include multiple aid stations, substantial elevation gain, and specific equipment and pacer rules for the 100K.