Trail Running Calendar California 2026-2027

Run the unique empty Kaweah Lake bottom in Three Rivers CA. Choose 5k or 10K, snag a finisher tee and wood medal, enjoy post race food and music, and support St Anthony Retreat.

Run scenic Catalina Island from Avalon, passing the historic Wrigley Mansion and sweeping ocean views in this half marathon, 10K and kids 1K. Tackle challenging hill climbs and the Triple Crown multi race for an extra test of grit.

Join the Third Annual SCTC 5K Turkey Trot on Thanksgiving in Santa Clarita Central Park, a scenic hilly 5K with a 1K kids run. Support Santa Clarita Track Club as runners of all ages race for a great cause.

Celebrate Thanksgiving at the Zoom Turkey Trot in Hellyer County Park, San Jose with family friendly distances from a free kids dash to a USATF certified half marathon. Park entry is included and every finisher earns a medal.

Run the LA Turkey Trail through the Santa Monica Mountains on Thanksgiving for scenic ocean and mountain views past the Nike Missile Tower. Finishers get medals, shirts, vegan tacos, race photos, a 21 and over beer garden and awards.

Island View Endurance Run returns to Goleta, California on December 4 and 5, 2026, with distances from 12K to 100 miles. Enjoy scenic coastal trails and multi day endurance challenges; registration opens April 1, 2026.

Run the Enviro Sports northern California trail series, from short trail jaunts to full marathons across Big Sur, Mount Tam, Napa and Angel Island. Experience coastal views, redwood forests and wine country trails for every pace.

Take on 10k, 25k or 50k trail routes along Millerton Lake and the San Joaquin River in Friant, CA on December 5, 2026. Enjoy scenic waterside singletrack, well stocked aid stations and a friendly ultrarunning vibe.

Run a scenic 50 mile point to point ultramarathon from Sunrise Trailhead to Stagecoach Trails RV Resort in Julian, CA, climbing Stonewall Peak and skirting lakeside trails before a desert finish. Family and crew friendly with aid, camping,..

Join the festive Krampus Cross Country in San Francisco with live and virtual options Dec 4 to 7 and the in person race on Dec 6. Pick 5K, 10K or the Naughty Nine Miler and take home a woodallion, tee and beer sampler stein.

Hit the trails in San Diego on December 20, 2026 for the Dirty December Trail Run, featuring marathon, half marathon, 10K and a new Hill Climb six hour challenge up and down Cardiac Hill. Wear a costume for solo or team awards and vie for K..

Take on the 68 mile Backbone Trail in the Santa Monica Mountains on January 16, 2027, with 13,600 feet of climbing and epic coastal views. Field capped at 200; solo entries require a prior 50 mile finish, relays of two to four welcome.