California
California Trail Running Calendar 2026-2027
Explore the best trail runs in California for 2026-2027! Our updated list features 370 exciting trail runs across the region. Find your next trail run in California below and join the trail community at these great events!
November 2026
Community 10K and 5K in Cool, CA supporting local food closets, with a custom beanie for registrants, an aid station on the 10K and nearby parking.
College of the Canyons Turkey Trot in Santa Clarita features a three-mile campus and trail course, a Kiddie K, live results, free parking, t-shirts and medals for top finishers.
A no-frills trail event at Torrey Hills Park on 11/26/2026 featuring 5K and 10K courses, a mid-course waterfall view, cupless running, and virtual options.
A 2.2 mile fun run on the Gunn cross country course in Palo Alto on November 26, 2026 with a kids half lapper, retro t shirts, prizes and race day registration.
A 28 mile out and back on the Dipsea Trail around Mill Valley featuring 9200 feet of climb, single track, many stairs, and aid stations stocked with GU Roctane.
Quarry Turkey in Fremont offers a half marathon, 10K, 5K and a virtual race over Thanksgiving weekend, plus a Little Turkeys kids race and a food drive.
A November trail race at Black Mountain Ranch Park offering Half Marathon, 10K and 5K on dirt single-track and service roads, limited to 300 runners.
One mile loop ultra on hardpacked dirt with timed 3, 6, 12 and 24 hour options plus relay teams. Live chip timing, free on course camping, continuous food service, and a 31 hour buckle challenge to reach 100 miles.
Waffle Run in Clovis offers 5K, 2 mile and virtual options on Nov 29, 2026 with a post-race waffle breakfast and proceeds benefiting Poverello House.
December 2026
Trail marathon and half marathon on the single dirt road through Titus Canyon in Death Valley National Park, with limited field size, staffed aid stations, and shuttle service.
Trail races of 50K, 25K and 10K along Millerton Lake and the San Joaquin River with start and finish at S. Finegold Picnic Area in Friant, CA.
A 50 mile point to point trail race through Cleveland National Forest and Cuyamaca Rancho State Park, featuring Stonewall Peak and Oriflamme Canyon. Aid stations, drop bag rules, shuttle options, and finish amenities at Stagecoach Trails are provided..
A 28k trail run in Fremont Canyon at Irvine Regional Park featuring about 3800 feet of elevation change and four aid stations. The course runs on fire roads, is cupless, and participants are asked to carry personal hydration.
Trail races from a kids run to a 50K at Calero County Park in San Jose with varied single track, multiple aid stations, free parking, and drop bag support for the 50K.
Trail running at Point Mugu State Park with 30K, 50K and 50 mile courses on rugged coastal singletrack and major elevation gain.
High Desert Ultra in Ridgecrest, California on December 5, 2026 offers 50K, 30K and 10K courses across rolling desert trails with nine stocked aid stations.
Trail races at China Camp State Park with 10K, half and 30K options on marked singletrack and fire roads featuring significant climbs and cupless aid stations.
A community run and walk on Del Mar beach on December 5, 2026, offering 3K and 5K routes and benefiting Semper Fi & America’s Fund and San Dieguito River Park.
An in-person half marathon on Runyon Canyon trails in Los Angeles on Saturday, December 5, 2026, with tickets listed at 0.00 USD.
A San Francisco cross country event on Sunday, December 6, 2026 offering 5K, 10K and a Naughty Nine Miler with live and virtual options and race swag for all.