Trail Running calendar near Fairfield 2026-2027

Kick off 2026 on Lake Chabot trails with Brazen New Year’s Day, featuring scenic half marathon, 10K, 5K and remote options. Enjoy a festive trail vibe, free photos and the chance to earn a Mega Medal while supporting local parks.

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.

Explore scenic Hacienda Hills trails with sweeping Bay Area views in San Jose on Jan 3, 2026, choosing distances from a kids run to a 50K ultramarathon. Day of registration, aid stations, and medals for all finishers make it welcoming for e..

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..

Tackle rugged trails and steep climbs around Auburn on the historic Western States route, with distances from 8K to a 50K for every trail runner. Chip timed, scenic, and limited to 400 entrants, this is a true test of grit and views.

Join the Hope in Every Step 5K in Modesto on January 10 for a lively community run and walk along the Tuolumne River Parkway. Proceeds benefit the Sole Support Sponsorship Program and local youth programs, so every step gives back.

Run the scenic El Dorado Trail from Placerville to Folsom in the Double Double Double 50K, a mostly runnable, gently downhill ultramarathon on Jan 10, 2026. Low key support and post run Double Double treats make this a relaxed, fun challeng..

Run through redwood forests at Huddart Park with distances from a short 8K to a challenging 50K, plus a free kids dash. Expect scenic single track routes, friendly aid stations and a welcoming trail community.

Tackle scenic single track at Huddart Park in Woodside on Jan 18 for the Crystal Springs Trail Run, with distances from 8K to 50K plus a kids dash. Expect big climbs, stocked aid stations, cupless rules, and custom finisher medals.

Run scenic single track trails along Folsom Lake with distances for every runner from a 1 mile kids run to a 50K. Commemorative medals for finishers, aid stations, and on site EMT support create a welcoming day on the trails.

Hit the scenic shoreline trails of Folsom Lake on January 24, 2026 with the Gumby 5K and 10K at Granite Beach. Enjoy well marked single track, finisher medals and Gumby themed shirts available for preorder.

Take on twisty dirt trails and big climbs around Montara Mountain at San Pedro Valley Park. Choose 10K, half marathon or 30K with aid stations, cupless racing and finisher medals for all.

Experience iconic San Francisco trails as Spartan Trail takes runners over the Golden Gate Bridge into the Marin Headlands. Distances from 15K to 50M make this coastal challenge a fitting finale for the Spartan Trail World Championship.

Coyote Hills 2026 in Fremont on Jan 31 invites runners to choose a half marathon, 10K, 5K or remote entry along scenic bayfront trails and boardwalks. Expect easy climbs, great shoreline views, free photos and community vibes.

Run the 48th Jed Smith Ultra Classic in Sacramento Jan 31, 2026 and tackle courses from half marathon to 50 miles on scenic American River Parkway loops. Finishers receive a long sleeve technical shirt and a hand crafted wooden medal.

Test your legs on scenic Sierra Azul trails at Mt Umunhum Trail Conquest Winter, with distances from a kids run to 50K and routes that summit Mt Umunhum and Bald Mountain. Finishers earn commemorative medals and aid stations keep you fueled..

Run scenic shoreline trails at Escape from Folsom Trail Runs on Feb 7 and 8, 2026 at Granite Beach, Folsom Lake. Choose a 5K or 10 Mile and earn a finisher medal while enjoying aid stations and lake views.

Run the stunning coastal trails around Rodeo Beach at the Golden Gate Trail Run, with distances from 8K to 50K to suit all levels. Expect rugged singletrack, stocked aid stations, generous finisher medals, and unforgettable views.

Join the JW House Hope Run at Vasona Lake Park for a scenic 5K or 10K that welcomes runners, walkers, and teams. Family and stroller friendly, this community event raises funds to support families facing medical crises.

Enjoy a scenic bayside run at Bay Breeze 2026 in San Leandro Marina Park on February 14. Choose a half marathon, 10K, 5K or remote option on a mostly flat route by the water, with walkers welcome and free photos.