Trail Running Calendar California 2025-2026

Run rugged single track trails above Folsom Lake near Pilot Hill, CA, enjoying stony paths and sweeping water views. Options from a 5K to a 36 Miler make this a great day for trail runners of many paces and goals.

Celebrate the City of Fullerton's inaugural 5K Trail Run through scenic Brea Dam trails near the Fullerton Tennis Center and Golf Course. After the race, enjoy a Health & Wellness Fair, food trucks, a finisher shirt, medal and free photos.

Run Marin Headlands trails, cross the Golden Gate Bridge and finish near San Francisco at the Golden Gate Trail Classic by Spartan Trail. Multiple distances across two days wrap up the Spartan Trail season.

Explore a scenic 5 mile loop at Red Tail Roost in Cleveland National Forest with possible snow and ice underfoot. Hot drinks, snacks and photo stops make this a cozy social outing for ages 18 to 35; limited spots available.

Celebrate Thanksgiving at the Zoom Turkey Trot in San Jose at Hellyer Park with a USATF certified half, 10K, 5K and kids runs, plus t shirts and finisher medals. Flat, fast courses and stocked aid stations welcome all abilities.

Run off your Thanksgiving with the Wild Turkey trail run at Beals Point, Granite Bay, benefiting Folsom's Hope. Choose a stroller friendly 5K, a 10K or a free kids 1K and enjoy a new doubletrack stretch plus post race music and refreshments..

Celebrate Thanksgiving at the Moraga Turkey Trot, a friendly 5K or 1.5 mile run or walk on the Moraga Country Club cart path. Advance registration is required, proceeds benefit the food bank and participants get a tee, bib and prize chances..

Celebrate Thanksgiving with the first annual Spring Valley 5K on scenic Quarry Road, offering a trail run or walk plus a relaxed 1.5 mile Community Stroll and a lively half mile Kids Sprint. Family friendly and welcoming to all ages.

Join the College of the Canyons Turkey Trot in Santa Clarita for a scenic three mile run through campus and valley trails, ending with a fast finish on the Cougar Stadium track. Expect live results, a commemorative shirt, and race day fun.

Celebrate Thanksgiving weekend at Quarry Turkey in Fremont with a mostly flat half marathon, 10K, 5K and kids races. Walkers welcome, virtual options available, proceeds support the local food bank, and you can earn a Double Turkey connecto..

Run a scenic one mile loop at Washburn Ranch in Hemet with 100 mile, 24 hour and relay formats, live tracking, on site camping and close aid. Buckles await solo runners who complete 100 miles within the 31 hour window.

Join the Waffle Run in Clovis on Nov 29 for competitive and fun 5K, 2 mile and virtual options for all ages. Proceeds benefit Poverello House and many entries include Huckleberry's waffle breakfast coupons.

Run scenic single track at Black Mountain Ranch Park in the Turkey Burner, offering a half marathon, 10K, 5K and kids dash. Expect steep climbs on the technical half and a capped field for a friendly trail vibe.

Island View Endurance Run in Goleta, CA offers distances from 12 km to 100 mile across scenic coastal trails with big climbing. Supportive aid stations and buckle awards for 100 mile finishers make this a memorable ultrarunning test.

Run Krampus Cross Country in San Francisco live on Dec 7 or virtually Dec 5 to 8 with 5K 10K and the Naughty Nine Miler. All entrants get a wooden woodallion a Krampus tee and a beer sampler stein plus a brewfest on Dec 5.

The Fremont Canyon 28k Trail Run is an exciting running event taking place in Irvine Regional Park, Orange, California. Scheduled for December 6, 2025, this challenging 28k (17.5 miles) course features fire roads with an elevation gain and..

Run amid Death Valley beauty with marathon, half marathon and 10K along Badwater Basin. Limited to 200 runners, this low elevation course includes medals, a T shirt and an unforgettable desert road experience.

Run the 38th High Desert Ultra in Ridgecrest, California on December 6, 2025, with 50K, 30K, and a new 10K through scenic desert loops. Proceeds support youth running and community charities and all finishers get a handmade ceramic medal.

Choose distances from a kids 50 yard dash to a full marathon as you run scenic Quarry Lakes and the Alameda Creek Trail in Fremont. Enjoy stocked aid stations, finisher medals and pre registered shirts with park entry included.

Tackle scenic singletrack and dirt at Calero County Park in the Calero Trail Run Winter, with distances from a kids mile to a 50K. Expect rolling hills, oak vistas, aid stations, a finishers medal and race day registration.