Trail Running Calendar California 2026-2027

Join the SJVDHA for their annual Pacing for Prevention 5K, supporting oral cancer research. Walk or run a paved, scenic trail that welcomes strollers and dogs. Connect with health professionals and participate in wellness activities.

Test your speed and navigation skills in this unsanctioned 4+ mile race through Chino Hills. Navigate four checkpoints across gravel and trail terrain to compete for cash prizes in a format where you choose your own route.

Trail races inside Marshall Gold Discovery State Historic Park range from a Kids Run to a half marathon on varied singletrack and paved sections, with marked courses, aid stations, and notable elevation gains.

Experience a rugged trail race through the Sierra Nevada foothills featuring technical single tracks and fire roads. Choose between three distances and take on the steep ascent of El Guapo before celebrating at the finish line fiesta.

A 13.5-mile trail race on fire roads and single track in Limestone Canyon with 2,719 feet of elevation gain, two aid stations, cupless policy, and limited packet pickup options.

Mud Factor Fresno is a 5k mud run at Hobb's Grove in Sanger, CA on April 26, 2026. The all ages event runs Adult and KIDZ family waves; participants must bring a signed waiver and adults must show a photo ID.

Celebrate the 14th anniversary of Aut2Run at CSU Channel Islands with distances from a 1 Mile Run to a 15K Hero Run. Support the local autism community through this inclusive event featuring both trail and road courses.

Support youth programs while running or walking through beautiful Griffith Park. This community trail event features a 5K course for all ages and offers medals and t-shirts to the first 500 participants.

A multi-distance trail event in Los Padres National Forest near Ojai, CA, on May 1 to 3, 2026, offering distances up to 100 miles with large elevation gains and a 150-entry limit; qualifying requirements apply for the longer races.

A 100 mile loop ultramarathon around Lake Cuyamaca with mostly single track, about 15,400 feet of climbing and a 32 hour limit. Offers crewed and Solo divisions and requires recent race qualification plus volunteer or donation service.

Experience an iconic trail ultramarathon through the redwoods and coastal cliffs of the Marin Headlands. This challenging 62 mile course features 11,000 feet of gain and serves as a major race qualifier.

Trail race in Lone Pine, CA on May 2, 2026 with 50 mile, 50K, marathon and 10 mile options through the Alabama Hills and Mt. Whitney foothills. Multiple aid stations and community support are provided.

Trails n Vines Wine Run takes runners through the scenic vineyards of Orfila Winery in Escondido. Choose from 3, 6, or 9-mile trail distances and enjoy wine tastings after the race. Participation is limited to 400 runners.

Experience a fun mud filled course at Bates Nut Farm featuring waist deep mud pits and a dozen unique obstacles. This untimed event is perfect for those looking to run crawl and slide through the mud followed by a post race party.

Trail races from Browns Ravine Marina follow out-and-back lakeside trails with 10K, half marathon, 35K and 50K options; aid stations appear every 4 to 6 miles and all finishers receive a custom medal.

This trail race in Santa Clarita's historic Placerita Canyon offers a wide range of distances, from a 5K to a 120K ultramarathon. The course travels through the golden hills of the East Walker Ranch Open Space, featuring singletrack trails..

Run through the historic Beauty Ranch at Jack London State Historic Park. This inaugural trail event features a half marathon and five mile course amongst the vineyards and forested slopes of Sonoma Mountain.

Held May 3, 2025 at Almaden Quicksilver County Park, this trail event offers distances from a kids run to 50K on dirt roads and single track, with marked courses, multiple aid stations, drop bag service at the Hacienda and free parking.

A memorial marathon in San Diego on May 3, 2026. The event is not a race and offers no official support; participants navigate and support themselves and may register to record a result.

A trail run through the forested trails of Pacific Union College offering 26k, 10k, and a 1 Mile Kids Run for ages 7 to 12. The event is cupless, parking is free first come first served, and proceeds support PUC Athletics.