Trail Running Calendar California 2025-2026

Machete Muertos 200 brings Dia De Los Muertos flair to Lake Perris Oct 29 to Nov 2, 2025 with races from 10 miles to 200 miles. Expect rugged lakeside trails, big climbs, camping and a festive vibe for racers and crews.

Join the Santa Clarita Trail Race Saturday November 1 2025 in Placerita Canyon with 5K, 10K, half marathon and 28K entries. Run flowing singletrack and rugged roads with big climbs and panoramic views over the Santa Clarita Valley.

Join the ZombieRunner Halloween at Hellyer County Park in San Jose for a spooky, family friendly race day with distances from a kids dash to a full marathon. Costume contest, festive aid stations, and custom finisher medals add extra fun.

Run the scenic Kaweah Lake Bottom Trail on Saturday, November 1 in Three Rivers, CA with 5K and 10K options over paved and dirt trails near Sequoia National Park. Enjoy a finisher tee, custom wood medal, free photos and live results.

Run Rio Del Lago in the Sierra foothills near Folsom Lake on November 1, 2025, with 100 mile and 50K distances. The 100 mile is a Western States qualifier featuring scenic single track, big climbs and full aid support.

Run as many 3.6 mile loops with about 600 ft of climb as you can in an 8 hour Wildwood Canyon trail challenge through meadows and oak hills. Live bluegrass, vendors, and an afterparty at Hops and Spokes add festival vibes.

Run Griffith Park's iconic trails on Saturday November 1 2025 with distances from 10K to 50K, including marathon and half marathon. The out and back course climbs to the Hollywood sign, features multiple aid stations, and registration close..

Challenge yourself at the 39th Golden Gate Park XC Open on November 1, 2025 in San Francisco, a scenic two loop 5k over grass, dirt and rolling hills. The event hosts the USATF Masters 5k XC National Championship alongside competitive open..

Run through scenic Pine Creek Wilderness on a wide dirt fire road, climbing to a rewarding turnaround and returning with a fast descent. Choose the half marathon or 10K for a peaceful, well marked trail experience near Alpine, California.

Challenge yourself on the Almaden Hills Trail Run in San Jose on November 1 at Almaden Quicksilver Park. Scenic, very hilly trails with dirt roads and single track offer distances for every runner from 5K to 50K.

The Roosters Backyard Ultra will take place in San Diego on Saturday 1 November 2025.

Run through towering redwoods at the Oakland Tech 5 km fundraiser, with a 1 mile fun run or walk for all levels. Enjoy scenic trails while supporting Oakland Tech PTSA and the school cross country team.

Mount Laguna Trail Marathon is a challenging single loop on technical single track with Pacific Crest Trail views and climbs around Big Laguna Lake. Volunteer run nonprofit with an inclusive, environmentally focused community.

Test your limits at NorCal Backyard Ultra at Beals Point on Folsom Lake where runners tackle an hourly loop of about 4.2 miles until one remains. Choose Last Person Standing or the 24 hour Mini and soak in scenic lakefront trails.

Run the Catalina Island half marathon or scenic 10K in Avalon for trail climbs, a summit view of the Pacific and nearby islands, and a return through Wrigley Memorial. A 1 km kids run and Triple Crown challenge complete the options.

Join scenic trails around Lake Chabot on November 8, 2025 with distances from 8K to 50K and a free kids dash. Expect rolling hills, well marked routes, finisher medals and tech shirts for pre registered runners at the Marina.

Runapalooza in Clovis on Nov 8, 2025 features competitive and fun 5K races, a 2 mile run walk and a virtual option on the Old Town Clovis Trail. Participants receive a shirt and medal, post run celebration and support Beyond The Barracks.

Enjoy scenic redwood trails at Huddart Park with distances from 3 Mile to Half Marathon, plus a family Mermaid Dash for kids. Try the festive 6 Hour Challenge to see how many 3 Mile loops you can cover, or join virtually.

Run scenic, technical trails on Mt Tam with sweeping coastal views and big climbs, then celebrate with food and drinks on Stinson Beach. Four distances from 10K to 50K welcome every level of trail runner.

Take on the rolling, scenic trails of Rancho Cañada del Oro in Morgan Hill with distances from 5K to 50K. Expect challenging hills, mixed singletrack and fire road, creek crossings and big views framed by old oaks for a true trail running a..