Trail Running Calendar California 2025-2026

Run the scenic coastal trails of Crystal Cove State Park on December 13, 2025 at the Crystal Cove Trail Run with 15K and 6K courses plus a kids 1K. Celebrate at the post race party with breakfast, a 21 and over beer garden, free photos and..

Run a scenic point to point trail half marathon along Folsom Lake, winding on single track through oak groves, grassy slopes and Sierra views. Expect technical sections, gentle rolling hills and shuttle service back to the start.

Run through towering redwoods at Sanborn Regional Park with half marathon, 10K and 5K options plus a remote runner choice. Expect scenic climbs, narrow single track trails, professional chip timing and custom finisher medals.

Experience the Dixon Lake 10/10 Trail Race at Daley Ranch in Escondido on December 13, 2025 with 10 mile, 10K and 5K courses on scenic single track and dirt roads. Limited to 300 runners, the 10 mile reaches Standley Peak for panoramic view..

Experience a scenic loop around Angel Island with views of the Golden Gate and Alcatraz at the 37th Hark the Herald, offering a half marathon and a hilly 10K. Limited to 400 runners, includes ferry transport and finisher swag.

Doomsday is a trail run in Cool, California on December 13 with 50K and Half Marathon routes across rugged high elevation terrain. Limited to 200 runners, this scenic but demanding race rewards finishers with medals and shirts.

Run under the stars on fully marked fire road courses at Mulholland Gateway Park in Tarzana, with 5K and 10K night options. Bring a working headlamp, enjoy aid stations, and collect a finisher medal and shirt.

Take on the Chino Hills Trail Run Series Fall at Chino Hills State Park on Dec 13, 2025 with 30K and 50K routes through chaparral and oak woodlands. Aid stations and sweeping views make this a must for fall trail lovers.

Join the Hanukkah 8 Krazy Kilometers on December 14, 2025 at Panorama Vista Preserve in Bakersfield for a scenic trail 8K or family friendly 2K Latke Loop, available in person or virtually. Expect swag, music and community fun.

Celebrate the season with the Holiday Fun Run at Griffith Park, offering 5k, 10k, 15k and half marathon routes on scenic dirt horse trails and grassy starts. Enjoy on course aid, a finisher medal, free photos and post race snacks.

Run or walk the 10th annual Homeless for the Holidays at Griffith Park on a scenic flat 5K or 2.5K, with chip timed and self paced options. Proceeds support Pennies From Kevan and local programs serving those facing homelessness.

Celebrate the season with Placerville's Holiday Jingle & Mingle Run on the scenic El Dorado Trail, offering distances from a kids run to a half marathon. Enjoy oak lined views, festive fun, aid stations and a commemorative medal at the fini..

Take on dirt trails at Paramount Ranch in Agoura Hills with distances from 10K to 50K for every trail runner. Enjoy scenic post fire recovery vistas and a supportive trail community on challenging winding terrain.

Run among redwoods at the Woodside Ramble in Huddart and Wunderlich parks. Multiple trail distances, small field atmosphere and cupless eco focus so bring your own bottle for a scenic, rugged trail day.

Get into the holiday spirit at Run for a Claus in Irvine on Dec 20, 2025, with 1 mile and 5K options plus virtual entries. Enjoy festive music, cookies, a Santa hat, finisher medal and support local charities and kids.

Tackle rugged Sycamore Canyon trails at the Dirty December Trail Run in San Diego on December 21, 2025. Choose from marathon, half, 10K or a timed hill climb, enjoy technical shirts, fun costume awards and challenging climbs.

Ring out the year with Almost New Year's Eve at scenic Lake Chabot in Castro Valley on 12/27/25. Trail routes for runners, walkers and hikers include 5K, 10K and half marathon distances with free post race photos.

Celebrate New Year’s Day with scenic loop races at Lake Chabot, from half marathon to 10K, 5K and remote options on rolling trail terrain. Enjoy free race photos and earn a New Year Mega Medal if you also ran Brazen New Year’s Eve.

Kick off the new year on the trails at Overlook Park in Auburn, CA with the Auburn Resolution Run. Choose 5K, 10K, 10 mile or virtual and earn a 2026 finisher medal for completing the course.

Ring in 2026 with the Happy New Year Run at West Creek Park in Valencia, CA. Choose from 5k, 10k, 15k or half marathon on scenic looped trails, enjoy finisher medals, free photos and a festive start to your year.