Trail Running Calendar California 2025-2026

We have found 243 Trailruns in California. Check below where and when you can find the races.

Run the scenic Merced River Canyon in Briceburg CA on Saturday March 28 2026 with two race options. Pick a 5 mile out and back on mostly flat foothill roads or the 9 mile climb up Burma Grade for a bigger challenge.

April 2026

Challenge yourself at the Billy Goat Mountain Climb near Silverado with steep climbs and sweeping views through Cleveland National Forest. Choose a 17 mile loop, half marathon or 10K and finish with a medal, race shirt and post race snacks.

Run scenic single track and fire roads above the Golden Gate Bridge at the Golden Gate Headlands Marathon, Half Marathon and 10K on April 4, 2026. Limited to 400 spots, this race delivers sweeping bay and ocean views.

Run scenic Mount Diablo trails on April 4, 2026 in Walnut Creek with distances from 5K to 50K. Brazen Racing hosts the event with proceeds helping Save Mount Diablo and a festive post race BBQ.

Run the scenic American River Parkway from Folsom to Auburn with 50, 25 or 10 mile options. Expect aid stations, a tech shirt and finisher medallion, plus a festive post race party with food and a beer garden.

Hop into spring at Hoppy Easter, a road and trail run at Griffith Park with 5k, 10k, 15k and half marathon distances on scenic park trails. Looped courses, on course aid, custom finisher medals and free photos make it fun for racers and fam..

Hit the trails at Crystal Cove for Rock It in El Moro Canyon on April 4, 2026, choose a scenic 6K or challenging 10 Miler with climbs, descents and Pacific Ocean views. Run or hike, and enjoy a shirt, race photos and a finisher medal.

Run scenic trails at the Nature Made Great Race in Agoura Hills with distances from 1 mile to a half marathon and combo events. Enjoy a big post race party with food, music and shopping or join virtually.

Run with the Burros in Inyokern CA mixes classic pack burro racing with trail running across desert terrain, raising funds for local animal charities. Choose from marathon to 5 mile distances and race solo or paired with a burro.

Romancing the Island at Angel Island State Park offers a scenic half marathon or 10K loop with iconic Bay views. Limited to 400 runners, this intimate island race is ferry accessible and unforgettable.

Run scenic trails at Lake Sonoma near Healdsburg with 100K, 50K or the Trail Sisters women only half marathon that finishes at the Visitor Center. Expect big climbs, lake overlooks, strong aid support and a celebratory finish.

Two days of scenic trail runs and gravel rides at Bedrock Valley Trail Runs, April 11 and 12, 2026 at Diamond Valley Lake Marina in Hemet, CA. Family friendly with kids and stroller runs, medals and finisher shirts, bring your own hydration..

The Oriflamme 50K near Julian, CA offers sunrise views over Anza Borrego as the route drops from the Pacific Crest to Blair Valley. Limited to 150 runners, this out and back features varied trail footing, full aid, and a 9 hour cutoff.

Run around Lake Chabot's scenic reservoir and rolling hills on April 11, 2026, with distances from a kids dash to a 50K ultra. Pre registered runners get shirts, all finishers earn medals, and well stocked aid stations keep you moving.

Run the scenic Wild Flowers 10K in Auburn on April 11, a loop of single track trails with rolling hills and two aid stations. All finishers get a race tee and top finishers can win prizes including an all expenses paid trip to Spain.

Challenge scenic, technical trails above Calistoga with 50K, 35K, half marathon and 10K options, several UTMB index races. Big climbs, remote single track and a custom finisher medal and race shirt for every finisher.

UTMB Index

Run the scenic Ruth McKenzie Table Mountain Preserve with half marathon, 10k, 5k and kids races, all finishers get medals. Expect rolling hills, a summit climb and post race refreshments including beer for 21 and over.

Soak up ocean views at Yaya's Run in Ventura, offering 5k, 10k, 15k and half marathon on the scenic Surfers Point beach path. Enjoy custom finisher medals, free photos and post race snacks while racing along a fast, friendly course.

Badwater Salton Sea is an epic team ultramarathon from the Salton Sea to Palomar Mountain, mixing road and single track through desert and mountain scenery. Teams of two or three tackle 81 miles in a small, supported field.

Run lakeside single track around Folsom Lake at the Outlands Endurance Race in Pilot Hill CA on April 18, 2026. Choose 25K 50K or 50M out and back courses with stocked aid stations plus finisher swag and wood awards.