Trail Running Calendar California 2025-2026

Run 50 miles of iconic Pacific Crest Trail single track through the Laguna Mountains, with big climbs, rocky sections and sweeping views. Part of the SoCal Ultra Grand Prix, this classic out and back is a true test for trail lovers.

Run the 42nd annual Lake Chabot Trail Challenge on June 7, 2026 in Castro Valley, with a scenic hilly half marathon or a 5K featuring ridge line views of Mt Diablo and the Bay. Chip timed races, finisher medals, and on site packet pick up.

Join the Griffith Park Trail Marathon Relay and 8K for team excitement or a scenic solo run on fire roads and trails. Enjoy chip timing, a finisher medal, live music, food trucks and post race fun plus cash prizes for top finishers.

Run around Lake Tahoe in the Tahoe 200, a rugged 200 mile ultramarathon along the Tahoe Rim Trail with alpine lakes, long ridgelines and forest single track. Massive elevation, full aid stations and a 105 hour cutoff make this a true advent..

Run Phoenix Rising at Griffith Park with 5k, 10k, 15k or half marathon options on scenic dirt trails around Crystal Springs. Expect aid stations, finisher medals, free photos and a friendly shared trail with hikers and equestrians.

Challenge yourself on a scenic one mile loop at Crissy Field with 3, 6, and 12 hour solo and team timed events. Enjoy a flat waterfront course, real time lap tracking, and a finisher medal for every runner.

Take on a scenic 100 mile trail challenge near Cool, California featuring looped singletrack and fire roads with about 13,600 ft of climbing. Live tracking, regular aid and a handcrafted buckle await finishers.

Run the Cool Moon Trail Races in Cool, California on June 13-14, 2026, with options from 5K to 100K on scenic single track and fire roads. Well marked routes, lively aid stations and live runner tracking make for an unforgettable trail week..

Broken Arrow Skyrace is California's first skyrunning event, held at Squaw Valley (Palisades Tahoe) in the Sierra Nevada. Presented by Salomon and organized by Alpenglow Mountain Racing, it offers multiple mountain-running distances: 11K, 1..

Challenge a scenic 100 mile loop in Northern CA with about 15,000 feet of climbing through Lassen and Thousand Lakes Wilderness. Starts and finishes at Burney Mountain Guest Ranch with ranch camping and a post race meal.

Challenge yourself on the rugged trails of Black Mountain in San Diego on June 20, 2026 with 50K, 25K and half marathon options. Expect technical rocky single track, sweeping views and lively aid stations in a wild coastal landscape.

Run the Bizz Johnson Southside Scramble in Susanville on June 20 from Hobo Camp. Choose 7K, 14K, or 22K on scenic singletrack with river crossings and vista points. Cupless event so bring your own hydration.

Tough Topanga invites trail runners to scenic Topanga State Park with 10k, 15k and a 1 kilometer junior race over winding singletrack and big climbs. Finish with a handmade medal and tee, post race breakfast, a beer garden and massage.

Experience the world's oldest 100 mile trail race as runners tackle 100 miles from Olympic Valley to Auburn across rugged Sierra trails. Finishers earn silver or bronze belt buckles for sub 24 or 30 hour completions.

On July 11 join the San Lorenzo River Trail Run in Santa Cruz and run through coastal redwoods and scenic river crossings. Distances range from 10K to 50K, pre registered runners get T shirts and all finishers earn a custom medal.

Event overview Tough Mugu is a trail running event held at La Jolla Group Campground in Point Mugu State Park, 1 mile north of 9000 E Pacific Coast Hwy, Malibu, CA 90265. The event includes the following race distances: 10k 25k The event..

Join Hot to Trot at Griffith Park on July 18, 2026 for 5k, 10k, 15k and half marathon options on scenic dirt trails. Enjoy aid stations, custom finisher medals, free photos and a friendly community vibe.

Take on the Harding Hustle in Cleveland National Forest on July 18, 2026, with 50K, 30K and 15K options over scenic, rugged jeep road terrain. Expect hot July conditions, stocked aid stations, chip timing and hearty post race food.

Run under a full moon on scenic loops through manzanita and rock formations near Cahuilla Mountain, with distances from a 9 miler up to 50K. Limited to 200 runners for an intimate nighttime trail experience.

Run rugged Sierra singletrack and stunning high country scenery in Downieville, CA on July 25, 2026. Choose from 25K, 50K, or the epic 100K and celebrate at a lively finish festival hosted by Bad Luck Run Club.