Trail Running Calendar California 2026-2027

An evening trail event in Pasadena's Lower Arroyo Park offering 6K and 12K routes with chip timing and aid stations. The finish includes tacos and drinks and runners receive a commemorative shirt and wooden medal.

Trail and road races at Green Valley Lake offering 5K, 10K and half marathon distances with mixed paved and dirt terrain, aid stations about every 1.5 miles, chip timing and post-race activities at the Community Garden.

A 5K run or walk with a 282 step climb at Baldwin Hills Scenic Overlook in Culver City that benefits the Aztlan Athletics Foundation. Registration runs from 10/10/2025 to 12/31/2025 with a $45 fee.

Experience trail running in Orange County with several race distances ranging from a 5k to a 6 hour timed challenge. Navigate a scenic 3.3 mile looped course with multiple early bib pickup options available.

A trail race in the Marin Headlands with 8K, half, 30K and 50K options along coastal single-track and fire roads, marked courses, cupless aid stations, and a 350 runner capacity.

A multi-loop trail marathon near Soda Springs, CA covering about 26.4 miles and 4,300 ft of gain across Royal Gorge land, with a central aid station, solo and relay options, parking at Soda Springs Ski Resort, and shuttle service to the aid..

A two-mile beach run in Hermosa Beach, California on August 1, 2026, organized by the Mira Costa Track and Cross Country teams. Registration runs April 17 to August 1 and the $30 fee supports the team.

Monthly community hikes with an optional trail-run pace in Richmond organized by FIERCE Advocates, Moving Forward, and Richmond Run Club at 5551 Giant Highway.

An annual August trail event from Lake Chabot Marina offering a 50 km and a half marathon with volunteer aid stations and a plant-based finish festival.

Mountain trail race at Balsam Forebay, Shaver Lake offering 14K (8.7 mi) and 8K (4.97 mi) courses with notable climbs and Sierra views. Field capped at 250; includes shirts, finisher medals, awards, and post-race refreshments.

Experience a mountain run at 4,720 feet elevation through the pine forests surrounding Lake Gregory. This longstanding community event offers 5K and 10K courses on semi paved paths for runners and walkers of all levels.

Time based trail running at Skyline Wilderness Park in Napa where participants run as far as they can in 3 hour, 6 hour, or 12 hour formats on a 4.16 mile loop.

High Sierra trail event near Kit Carson, CA offering a 50K plus shorter looped races, 7,700 ft of climbing, marked courses and aid stations.

A trail running event on Aug. 8, 2026 in Gilroy, California through redwood groves and peak viewpoints. Distances include a 5K, 10K and half marathon with significant elevation gain, and proceeds support youth scholarships.

Bear Creek on August 8, 2026 offers 5K, 10K and a 13.32-mile half marathon in the Briones Regional Park area, with a virtual Remote Runner option. Entry windows and fees are listed for each race.

Operation YOSEMITE 2026 is an in-person trail event in Mono County, California on August 8, 2026, offering four distances from 6 to 22 miles with a 20 lb dry load and specified elevation gains.

SAR Wild Run is a mountain trail event near Shaver Lake supporting the Fresno County Sheriff’s Search & Rescue Team. Races and a family hike range from 5K to a trail half marathon, and a virtual option includes mailed finisher items.

50th annual Pinecrest Run in Pinecrest, CA: five-mile and one-mile courses along Pinecrest Lake, held as a fundraiser for Pinecrest Expedition Academy.

A trail running event at Malibu Creek State Park on August 15, 2026 offering 50k and 25k courses, stocked aid stations, prize purse and festival amenities.

A 50K trail ultramarathon near San Francisco with about 6,600 feet of climbing across Coastal, Miwok, Matt Davis and Dipsea trails and a $10,000 prize purse.