Trail Running Calendar California 2026-2027

A free untimed 3 mile community trail run at San Andreas Staging Lot in Del Mar on August 26, 2026. Limited to 250 participants, finishers receive a throwback shirt and medal distributed grab bag style.

A 5k trail run at Gypsum Canyon Wilderness on June 24, 2026 over fire roads and single track with about 350 ft of elevation gain. One aid station at mile 2.2 and a cupless race policy.

A community 100 mile project in Auburn with two options: a 100 runner relay where each runner covers 1 mile, or a 100 mile in 20 days individual challenge with a finisher buckle.

Live and virtual options at Lake Chabot feature 5K, 10K, and a half marathon with multiple aid stations, on-course nutrition, race apparel and a woodallion, post-race beverages, and a brewfest atmosphere.

A trail event on June 26, 2026 in Olympic Valley that starts at the Western States 100 line, runs around High Camp, and includes a kids 100.2 m dash. The day finishes with an after party at High Camp Lodge and live music.

A 100 mile trail race along the trans Sierra Western States Trail from Olympic Valley to Auburn, featuring over 15,000 feet of ascent and more than 22,000 feet of descent. Entry for 2026 is allocated by a lottery system.

A weekend camping and trail event in Pearblossom, CA that raises funds for Chingonas on the Run. Participants attempt a six hour loop challenge on singletrack around Mount Hillyer with aid at a central basecamp.

A trail run on the forested slopes of Mt. Shasta with sustained climbs, runnable descents, and multiple distance options. The long route reaches the top of every chairlift while a shorter roughly 5k goes to the Marmot lift.

The The Sober Endurance 2-4-6 will take place in San Luis Obispo on Saturday 27 June 2026. You can run 6 miles.

A free social, non-competitive group run in Newport Coast on May 30, 2026, organized by Aravaipa and OC Trail Runners. The route is about 5.5 miles with 500 feet of gain, includes rocky sections, and finishes with snacks and a raffle.

The Big Chief 50K will take place in Tahoe City on Sunday 28 June 2026. You can run 50 kilometers.

A 10-mile trail race in Redwood Regional Park with single-track terrain, a timed 0.8 mile hill climb, age-based handicap starts, limited to 250 runners, and a team competition.

The Burton Creek Trail Run will take place in Tahoe City on Sunday 28 June 2026. You can run between 6 and 21 kilometers.

Multi-day trail runs in Yosemite high country offering summit routes (El Capitan, North Dome, Cloud's Rest), point-to-point mileage across 40-98 miles, glamp-style basecamp at Tioga Pass, guided shuttles, meals, and permit logistics include..

Trail events in Burney Basin include a 5K, 10K and a burro race along part of the Historic Great Shasta Rail Trail. The event is tied to Burney Basin Day festivities, with a craft fair, parade and next day fireworks.

A community Independence Day event at Sycamore Grove Park featuring a flat 5K on mixed paved and dirt trails and a 400 meter kids run for ages 10 and under. T shirts are included with race fees.

A map based urban navigation run in San Francisco with 5K and 10K map courses starting at Ghirardelli Square. Teams of one to five use custom maps to find checkpoints, with refreshments and socializing after the finish.

A community July 4 event in Newhall Park featuring a flat, paved 5K along the parade route, a Kid K, and a Masters Mile Walk, with shirts, medals, an expo, and awards benefiting local high school cross-country programs.

A multi-distance trail event at Rancho Cañada del Oro Open Space Preserve on July 4, 2026, with routes from 5K to 50K over hilly single track and dirt roads. Two fully stocked aid stations support runners and time limits range from 1 to 9 h..

Two trail races at Elings Park in Santa Barbara on July 4, 2026 featuring a 5K and a 2K kids run that adults may enter; registration fees are $40 and $20 respectively.