Trail Running Calendar California 2025-2026

We have found 221 Trailruns in California. Check below where and when you can find the races.

Run a scenic loop through Goodman Ranch Sycamore Canyon Preserve near San Diego with options from a half marathon to 100K, including solo and 4 person relay entries. Ideal for trail lovers chasing a challenging ultra or a fun team weekend.

March 2026

Experience panoramic Bay views on the hilly trails of Angel Island with 5, 10, and 15 mile options and a free kids dash. Finishers earn custom medals and pre registered runners receive shirts; a charter ferry from Tiburon is required.

Way Too Cool in Cool, California brings scenic 50K and 10 mile trail runs over rolling hills and creek crossings. Enjoy stocked aid stations, a handcrafted finisher medallion, and post race tacos with a beer garden.

Enjoy scenic ridgeline trails in La Honda CA with 50K, half marathon and 10K courses through redwood forests and open grasslands. All entry fees support Ridge Trail Organisation and every runner receives a Bay Area Ridge Trail duffel bag.

Test your trail legs at the San Joaquin River Trail Half Marathon or 10K in Auberry, CA, with mostly single track foothill terrain, steep climbs, and scenic river gorge views. All finishers receive a custom medal and shirt and enjoy post ra..

Run scenic trails and rolling hills at the Tesoro Viejo Spring Classic, with half marathon, 10k, 5k and virtual options. Enjoy live music, local food, a medallion and festival fun while supporting local land and wildlife conservation.

Tackle scenic trails at China Camp State Park in March 2026 with in person or virtual 5K, 10K, and a challenging half marathon. All entrants receive a beer sampler stein, event shirt, and handcrafted woodallion.

Run desert trails in Anza Borrego from Stagecoach Trails RV Resort on March 14, 2026 with 50K, marathon, and half marathon options. Aid stations, volunteers, and on site camping make this scenic course an ideal spring trail getaway.

Experience rugged mountain trails and sweeping views at Tierra Redonda Mountain Trail Run and Camp in Bradley California on November 15 2025. Choose from epic 48 hour and 24 hour challenges or 20 km 10 km and 5 km distances.

Take on a scenic 50K along the Western States Trail near Foresthill, California on March 14, 2026. This out and back course mixes rugged singletrack with friendly aid stations and a 9 hour 30 minute cutoff for a big day on trail.

Discover the Catalina Island Marathon, 10K, or 5K in Avalon, with sweeping ocean views, rolling green hills, and classic trail terrain. Pick your distance and enjoy a scenic off road challenge perfect for trail lovers and coastal scenery se..

Challenge yourself on classic Marin trails with towering redwoods, coastal ridges and sweeping bay views starting at Rodeo Beach. Choose a 50 mile or 50K route over technical single track and fire roads for a true Bay Area ultrarunning expe..

Run scenic singletrack through Las Virgenes Canyon in Calabasas with 22k and 10k options featuring hills, switchbacks and creek crossings. This March event is Race 2 of the SoCalTrail Trail 1/2 Series and includes shirts, finisher medals an..

Experience rugged mountain trails and sweeping views at Tierra Redonda Mountain Trail Run and Camp in Bradley California on November 15 2025. Choose from epic 48 hour and 24 hour challenges or 20 km 10 km and 5 km distances.

Pirate's Cove at Lake Cuyamaca on March 20, 2026 is a scenic timed endurance run and hike with 24 hour, 12 hour and 6 hour options. Camp at Chamber's Park Campground for race HQ and remember to bring a reusable cup for this cupless event.

Run three scenic courses over three days in Marin County, summiting classic peaks with sweeping Bay Area views. Choose from 28K and 50K single loops or a new 100K point to point, with full race support, timing and finisher awards.

Rattlesnake Dick offers scenic, challenging trail routes in Cool, CA with 50K, 25K and 10K options starting and finishing at the Cool Staging Area. Professional timing and live tracking keep you connected, and finishers under 10 hours earn..

Join the VALENCIA Trail Race in Valencia California on March 21, 2026 for scenic, rugged single track and ridge runs with 10K, half marathon and 50K distances. Expect big climbs, friendly aid stations and a festive finish.

Experience scenic single track trails through Bothe Napa Valley State Park with marathon, half marathon and 10K options. Limited to 300 runners, this hilly, creek lined route showcases vineyard country and rewards finishers with medals and..

Run through towering redwoods in Oakland's Redwood Regional Park with distances from a kids 50 yard dash to a challenging 50K. Enjoy ribbon marked singletrack, stocked aid stations, custom finisher medals, and awards for top finishers.