Trail Running Calendar California 2026-2027

Experience the scenic trails of Lagoon Valley Park at The Pena Passage. Choose from 30K, 10K, or 5K distances featuring rolling hills and oak groves in a natural setting.

Annual 5 km and 10 km run and walk in Hunting Hollow at Henry W. Coe State Park, on a relatively flat dirt road through valleys with late spring wildflowers and possible wildlife sightings. Proceeds support Pine Ridge Association projects a..

A multi-distance trail running event at Griffith Park on June 13, 2026, offering 5k, 10k, 15k and a half marathon on hard-packed horse trails with an aid station, finisher medals, free photos, and posted results.

A charitable walk and run on June 14, 2026 at Howarth Memorial Park in Santa Rosa, CA. The event includes an in person 5K, a Dogwood Dash and a virtual any distance option; registration is coming soon.

The Old Zoo Half Marathon offers a half marathon and a 12K on scenic, flat trails starting at the historic Old LA Zoo. Runners receive a unique elephant finisher medal and other amenities. Early registration is advised as space is limited.

A family-friendly trail event at Whittier Narrows on June 14, 2026 featuring a scenic 5K with a shirt and medal and a short kids run for ages 3 to 10. The 5K field is limited to 90 runners and prices change after April 30.

A 100 mile loop through Lassen National Forest and the Thousand Lakes Wilderness with about 15,000 feet of climbing, on-site dry camping at Burney Mountain Guest Ranch, varied mountain terrain and a post race meal for runners.

A multi-day skyrunning festival at Palisades Tahoe featuring technical, high-alpine courses and multiple distances including an Ascent, 23k, 46k, the Iron Face via ferrata, and a kids race.

Orange Curtain Run in Orange County, California offers a range of distance and timed events from 10K to 100K on mixed pavement and bike path surfaces. The event is scheduled for June 19 and 20, 2026 and includes a certified marathon.

A trail race at Black Mountain in San Diego with 50K, 25K and a half marathon on June 20, 2026. The event follows Trail Sisters guidelines and features aid stations staffed by ham radio experts.

A cupless trail race in the Susan River Canyon featuring a loop from Hobo Camp that uses the Bizz Johnson Trail outbound and flowy South Side singletrack on the return. Three distances are offered and all finishers receive a towel and medal..

Trail running at Topanga State Park with 10k and new 15k courses, a non-timed Hiker's Delight, a kids 1k, on-course aid, chip timing, and prize purses as part of the Bulldog Challenge Series.

Trail runs near Mount Shasta on June 20, 2026 with 52k, 34k and 10k courses. Mountain loop routes and a lakeside 10k, cupless with stocked aid stations, post-race meal, and finisher items.

A multi-distance trail event at Fort Ord National Monument on June 20, 2026, with 50K, 35K, half marathon and 10K courses on varied single-track and fire roads. Chip timing, cupless aid stations, and a 350-runner capacity.

Celebrate the legacy of Title IX in Yorba Linda. Run or walk a moderate 5K on the El Cajon Trail with the family, strollers, and dogs. After the race, visit the vendor fair and explore awards for various age groups.

A 5k trail run at Gypsum Canyon Wilderness on June 24, 2026 over fire roads and single track with about 350 ft of elevation gain. One aid station at mile 2.2 and a cupless race policy.

Experience the scenic trails of Lake Chabot Regional Park with a variety of distances including a 5k, 10k, and half marathon. Enjoy a lively atmosphere with a post-race brewfest and handcrafted finisher awards.

A historic 100.2 mile trail run from Olympic Valley to Auburn on June 27 and 28 2026, featuring high alpine and river crossings, large elevation change, and traditional belt buckle time standards for sub 24 and sub 30 hour finishes.

Experience a weekend of community and trail running in the Angeles National Forest. Challenge yourself to complete multiple laps of a scenic 4.16 mile loop over six hours while enjoying a supported camping experience.

A mountain trail run at Mt. Shasta Ski Park with sustained climbs, flowing descents, and multiple distance options. The long route links the top of every chairlift while shorter routes include a roughly 5k to the Marmot lift.