Trail Running Calendar California 2026-2027

Trail race at Corral Canyon Campground on 05/16/26 offering looped courses from a 5 mile scramble to a 50K across rocky single track, jeeping trails and sandy sections, with aid stations and camp access for drop bags.

A point-to-point Half Marathon on May 16, 2026 in Almaden Quicksilver County Park, running from Mt. Umunhum down to the Hacienda Entrance with 1,909 ft of ascent, marked ribbons, aid stations and a 5.5-hour time limit.

A 10 km high altitude trail race at Snow Summit near Big Bear on May 17 2026. The route follows singletrack through pine forest with technical climbs and a three hour finish cutoff.

Mud Factor Sacramento is a 5K mud and obstacle run at the 300 acre Mahon Ranch in Elk Grove on May 17, 2026. The event includes adult and KIDZ family waves, a festival area with paid spectator access, and required signed waivers.

The 30th annual Jackrabbit Derby on May 17, 2026 at Spring Lake Regional Park in Santa Rosa features a 3 mile cross country race and a 1K Bunny Hop for kids. Online registration closes May 15 and members have free online entry.

A multi-distance loop race on a flat, one-mile dirt and grass loop at a private ranch in Riverside. Options run from 3-hour events to a 100-mile race, with camping, relay teams, and event awards.

This unique 8-mile race climbs 4,600 feet up a historic 19th-century mining road to the Cerro Gordo ghost town. At the summit, a celebration with BBQ and music awaits before a shuttle ride back down. All finishers receive a shirt and medal,..

Experience the final 70 miles of the Western States trail during this three day training event featuring supported runs of 19, 20, and 32 miles through iconic canyon terrain and mountain climbs.

Trail races of 5K, 10K and a half marathon take place at China Camp State Park near San Rafael, CA, on single-track and fire road routes with bay and Mt. Tam views. Courses are chip timed and supported by aid stations; this is a cupless eve..

A mountain trail race in Sierra Madre on May 23, 2026 featuring an 8.6 mile out-and-back course from Kersting Court to Orchard Camp, a Kids Fun Run, and community-led trail repair efforts supported by the Fletcher Trail Maintenance Fund.

The Páli Peak Trail Run takes place at the scenic Rio Bravo Ranch in Bakersfield. Choose from a 5K, 10K, or 21K half marathon, with proceeds supporting a college scholarship fund. Runners receive a shirt, medal, photos, and post-race snacks..

A trail event on the El Dorado Trail in Placerville on May 23, 2026, offering distances from a kids run to a half marathon, paved and unpaved sections, aid stations, color-coded course markings, and medals for finishers.

Return to Hahamongna Watershed Park on May 24, 2026 for a day of team relays and solo challenges. Choose a 50 km relay with teams of up to five, a solo 50 km ultra, or a 10 km fun run amid scenic Pasadena trails.

Join the Forever Brave event in Valencia for a 5k, 10k, 15k, or half marathon at West Creek Park. Enjoy a loop-based course with finisher medals and professional timing for all participants.

A 5k trail run at Black Star Canyon in Silverado, California, with mixed fire road and single track, 390 ft elevation gain, one aid station, a cupless policy, and pre-run access restricted to authorized days.

A Spartan obstacle weekend at Toro Park near Salinas on May 30 and 31 2026, featuring a Sprint 5 km with 20 obstacles and a Super 10 km with 25 obstacles. The course runs through wooded trails, rolling hills and coastal views.

Nitro Trail on May 30, 2026 at Point Pinole Regional Shoreline Park features a half marathon, 10K and 5K plus a remote runner option. A hiker start is available for half marathon walkers and the event supports a parks campership program.

Experience the natural beauty of the Angeles National Forest at the Pacifico Ultra. Runners can choose between 50k and 21k distances on mountain trails this May.

Experience a technical trail race through the redwood groves of Joaquin Miller and Redwood Regional parks. Choose from multiple distances ranging from an 8K to a 50K ultra marathon on accurately measured courses.

Experience a scenic run through Coyote Point Recreation Area with a 5K or 10K event supporting mental health. Enjoy a free community wellness fair featuring local health vendors and family friendly activities.