Trail Running Calendar California 2026-2027

Trail races at Topanga State Park include 10k and a new 15k, a non timed Hiker's Delight, and a kids 1k, with aid stations, chip timing, prize purses, shuttle parking, and a post-race festival.

Trail races of 52k, 34k and 10k take place in the Klamath Mountains west of Mount Shasta City, California. Courses include mountainous single-track loops and a lakeside 10k with staffed aid stations and a post-race meal.

Trail distances at Fort Ord National Monument near East Garrison, CA, traverse rolling hills, fields of wildflowers, single-track, sandy hills and fire roads. Courses are newly designed and differ from the winter Fort Ord Trail Runs.

Nixon 5K for Title IX on June 20, 2026 in Yorba Linda features a 5K and a 1K kids run along El Cajon Trail. The family-friendly event includes commemorative medals, race bibs, a 5K race shirt, and a Nixon Library admission.

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 event in Auburn CA offering a 100 runner relay with one mile per runner and an open 100 mile multi day challenge, both with a $35 entry and finisher items for participants.

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.

A sober-focused running event on June 27 at Cerro San Luis with a one-loop 5.5 mile race and 2, 4, and 6 hour timed loops, offering in person and worldwide virtual participation plus a post run ceremony and live results.

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.