California
California Trail Running Calendar 2026-2027
Explore the best trail runs in California for 2026-2027! Our updated list features 389 exciting trail runs across the region. Find your next trail run in California below and join the trail community at these great events!
January 2027
Trail running event at Whittier Narrows Nature Center on January 30, 2027, featuring 10K, 5K and a kids dash with finisher medals.
A 5.75 mile coastal run from Saunders Park in Trinidad across Moonstone Beach to Clam Beach, followed by a beach gathering with chili, music and a bonfire.
Multi distance trail run and hike in Griffith Park with an out and back to the Hollywood Sign viewpoint, chip timing, aid stations, and finisher awards.
A trail event in Griffith Park with multiple distances, featuring an out and back 8 mile route to the Hollywood Sign viewpoint, aid stations, chip timing, and finisher medals.
Experience the scenic foothills of Auburn with trail races featuring single track paths, canyon views, and a stroller friendly course option at Overlook Park.
February 2027
Experience the coastal beauty of the Marin Headlands at the Golden Gate Trail Run. Choose from distances ranging from a 50K trail race to a fun kids dash with views of the Golden Gate Bridge and San Francisco.
Experience a winter run through the technical terrain of the Red Hills Recreation Area in the Sierra Foothills. Choose between six or twelve mile distances featuring water crossings and muddy trails in a scenic natural environment.
Mt. Umunhum Trail Conquest (Winter) is a multi-distance trail event at Almaden Quicksilver County Park offering races from a kids run to a 50K with marked out-and-back courses, multiple aid stations, and summit sections to Bald Mountain or Mt. Umunhu..
Escape from Folsom on February 6, 2027 at Granite Beach offers a 10 mile and a 5K on scenic trails beside Folsom Lake. Aid stations supply water and fuel and every finisher receives a custom medal.
Jed Smith Ultra Classic on February 6, 2027 is a USATF certified loop event on the American River Parkway offering 50 mile, 50 k, marathon, 30 k and half marathon distances with two aid stations and race day packet pick up.
A half marathon, flat shaded 5K, and a dog-friendly Top Dog race through Griffith Park with medals, food trucks, and on-course water stations.
Experience the coastal landscape of Fort Ord National Monument with a range of trail races from 10 km to 50 km hosted at the iconic Laguna Seca Recreation Area.
Experience the diverse terrain of Fort Ord National Monument on a 50 mile trail course featuring single track, fire roads, and scenic coastal views in Monterey.
Trail event in Glendora offering a 50K solo, a 4-person 50K relay, and a 10K loop; heavy elevation on dirt trails and proceeds support the Wildland Firefighter Foundation.
A two-day campus event in Santa Maria featuring a timed 12 Hour race and a separate 5k, supporting a church missions project.
Trail race at Daley Ranch in Escondido offering a 50K two loop course with 6,318 ft total gain and a 13.1 mile loop, three aid stations, and SoCal Ultra Series qualification.
Valentine's Day trail event in Griffith Park with 5k, 10k, 15k and half marathon options on shared dirt trails, aid station, medals and live results.
Trail races in San Pasqual Valley on February 20, 2027 offering 20 Mile, Half Marathon and 10K through vineyards and orange groves with wine tasting at the finish.
Experience the unique Coastal Mountain Habitat and Pacific Coast views at this trail event in Pacifica. With distances from a kids dash to a 50K there are options for many different types of trail runners.
Experience a trail running event in Auburn featuring four major climbs and 6000 feet of elevation. Choose from distances ranging from 13km to 50km on a course with less than one mile of pavement.