Trail Running calendar near Riverbank 2025-2026

Celebrate Thanksgiving with a flat, scenic course at Quarry Lakes in Fremont offering a half marathon, 10K, 5K and a Little Turkeys kids dash. Costume friendly, walkers welcome, and donations support the Alameda County Community Food Bank.

Run ZombieRunner Quarry Lakes in Fremont on December 6 for scenic, mostly flat courses along Alameda Creek with distances from 5K to marathon. Stocked aid stations, custom finisher medals, and timed results make it a fun day for all.

Tackle scenic singletrack and dirt at Calero County Park in the Calero Trail Run Winter, with distances from a kids mile to a 50K. Expect rolling hills, oak vistas, aid stations, a finishers medal and race day registration.

Run a scenic point to point trail half marathon along Folsom Lake, mostly on single track through oak lined sections and rolling hills with lake and Sierra views. Race day bib pick up and shuttle service back to the start keep logistics sim..

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.

Join Placerville's Holiday Jingle & Mingle Run for a festive outing on the scenic El Dorado Trail with distances for every runner from kids to half marathon. Finishers earn a commemorative medal and the event welcomes families rain or shine..

Woodside Ramble on December 20, 2025 winds through Huddart and Wunderlich parks near Woodside, CA, mixing scenic singletrack and fire roads. Multiple distances from 10K to 50K welcome trail runners in a capped, festive field.

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.

Kick off 2026 on the trails around scenic Lake Chabot with a challenging half marathon, 10K, 5K or remote option. Run both Brazen New Year's Eve and New Year's Day to earn the New Year Mega Medal.

Enjoy Bay Area views and varied singletrack at Hacienda Hills Trail Run Winter near San Jose on Jan 3, 2026. Choose from nine distances up to 50K, enjoy marked courses, aid stations and a finisher medal.

Run scenic shoreline single track at Granite Beach with 12K and 5K options, then toast your effort with a custom IPA glass and locally brewed beer for participants 21 and over. Enjoy post race food and age group awards in a lively community..

Join Hope in Every Step 5K in Modesto, California on January 10, 2026 for a scenic run and walk along the Tuolumne River Parkway trails. Enjoy community vibes, teal race shirts, and friendly competition with awards for top finishers.

Run through towering redwoods and fern filled trails at Huddart Park with distances from 8K to 50K plus a free kids run. Well stocked aid stations and scenic single track make this a perfect challenge for trail lovers.

Run through redwood lined trails at Huddart Park in the Crystal Springs Trail Run, with distances from 8K to 50K plus a free kids sprint. Enjoy scenic single track, frequent aid stations and a commemorative finisher medal.

Run scenic single track along Folsom Lake under oak trees with gently rolling hills and a creek crossing. Distances from 1 mile to 50K, race day registration on site, and every finisher earns a commemorative medal.

Enjoy scenic shoreline trails at Folsom Lake with the Gumby 5K or 10K on January 24, 2026. Expect a fun, challenging course on single track and groomed trails, plus finisher medals and pre order soft cotton shirts.

Run along the San Francisco Bay at Coyote Hills Regional Park in Fremont with half marathon, 10K and 5K options plus a remote entry. Trails, boardwalks and paved paths make for a scenic, low climb course and walkers are welcome.

Jed Smith Ultra Classic in Sacramento on January 31, 2026 offers scenic looped courses along the American River Parkway with distances from 50 miles to the half marathon. Entrants receive a shirt and finishers a handcrafted wooden medal.

Hit single track at the Hensley Off Road Races at Hensley Lake near Raymond CA in early February 2026. Trail runners and mountain bikers will tackle technical terrain and 10k finishers get medals and shirts.

Run scenic, rugged trails around Mt. Umunhum at Almaden Quicksilver Park with distances from a mile and kids run up to 50K. Clearly marked courses, aid stations and medals for all finishers make this winter trail event welcoming to all.