Trail Running Calendar California 2026-2027

Los Mugrosos 5K - La Vida Sucia Run in South El Monte, CA on June 14, 2026 features a scenic single-loop 3.1 mile trail and a 0.3 mile kids dash, with shirts and finisher medals included and a 90-runner limit for the 5K.

A 100 mile loop trail race based at Burney Mountain Guest Ranch in Cassel, CA, running through Lassen National Forest and the Thousand Lakes Wilderness with about 15,000 feet of total climb. Camping for runners and crew is provided and a po..

A four day Skyrace at Palisades Tahoe on June 18–21, 2026, offering technical mountain distances from a steep Ascent to a 46K, plus youth and multi-day Crown options. The courses feature alpine exposure, ladders, hand lines, and a large pri..

Orange Curtain Run in Orange County, California offers a range of distance and timed events from 10K to 100K on mixed pavement and bike path surfaces. The event is scheduled for June 19 and 20, 2026 and includes a certified marathon.

A trail race at Black Mountain in San Diego with 50K, 25K and a half marathon on June 20, 2026. The event follows Trail Sisters guidelines and features aid stations staffed by ham radio experts.

A cupless trail race in the Susan River Canyon featuring a loop from Hobo Camp that uses the Bizz Johnson Trail outbound and flowy South Side singletrack on the return. Three distances are offered and all finishers receive a towel and medal..

A supported trail event at Topanga State Park offering 10k and 15k races, a non-timed Hiker’s Delight, and a kids 1k, with marked singletrack and fire road routes, aid stations, chip timing, and a timed Downhill Mile cash bonus.

Trail runs near Mount Shasta on June 20, 2026 with 52k, 34k and 10k courses. Mountain loop routes and a lakeside 10k, cupless with stocked aid stations, post-race meal, and finisher items.

A multi-distance trail event at Fort Ord National Monument on June 20, 2026, with 50K, 35K, half marathon and 10K courses on varied single-track and fire roads. Chip timing, cupless aid stations, and a 350-runner capacity.

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 community fundraising run in Healdsburg offering 10K and 3K courses that begin and end near the Historic Downtown Plaza. The 10K loops around Fitch Mountain and the Russian River while the 3K is a flat in-town loop for families and walker..

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.

Experience the scenic trails of Lake Chabot Regional Park with a variety of distances including a 5k, 10k, and half marathon. Enjoy a lively atmosphere with a post-race brewfest and handcrafted finisher awards.

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 fundraiser in Pearblossom that pairs camping with a six hour looped trail challenge summiting Mount Hillyer, offering aid stations, meals, free photos and a finisher's medal in an inclusive women focused space.

A mountain trail run at Mt. Shasta Ski Park with sustained climbs, flowing descents, and multiple distance options. The long route links the top of every chairlift while shorter routes include a roughly 5k to the Marmot lift.

Experience an ultra trail run through the scenic forests between Lake Tahoe and Truckee. This 50 km loop features rocky summits and 4500 feet of elevation gain with full course support and post race festivities in Tahoe City.

A 10 mile trail race in Oakland that starts at Chabot Space and Sciences Center, featuring hilly single track and the Woodmonster climb. The event uses reverse handicap starts by age, includes a team competition, and a hill climb prize.

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..

A trail event in Burney, CA offering 5K, 10K and a burro race along part of the Great Shasta Rail Trail. The burro race requires participants to provide their own donkey and follow specific gear and welfare rules.