Trail Running calendar near Redwood City 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.

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..

Join Hope in Every Step 5K in Modesto for a family friendly run or walk along the scenic Tuolumne River Parkway. Gear up with a teal event shirt, compete for awards, and help support local youth through Sole Support.

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.

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.

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..

Take on scenic trails at Fort Ord National Monument with 10K, 25K, and 50K options featuring rolling dirt trails and late course climbs. Enjoy marked routes, aid stations, and custom finisher medals in a friendly, seaside trail running atmo..

Run the Monterey Ultra 50 Miler at Fort Ord and Laguna Seca, a scenic two loop test across coastal trails and varied terrain. Aid stations keep you fueled and every finisher earns a custom medal and hat.

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.

Run scenic trails around Lake Chabot in Castro Valley with distances from 5K to a challenging 50K across technical singletrack, fire roads and long climbs. Chip timed, cupless event with a 500 runner limit.

Experience coastal mountain single track and sweeping Pacific views at the Montara Mountain Trail Run in Pacifica. Choose distances from a 10K up to 50K or marathon for challenging climbs and a family friendly kids dash.

Tackle scenic, hilly trails on Angel Island in Tiburon with 5, 10, and 15 mile courses plus a free 50 yard kids run for ages 6 and under. Expect single track climbs, stunning views, ferry access, medals and stocked aid stations.

Run or hike scenic Skyline Ridge in La Honda, CA with 50K, 21K and 10K options across rolling ridges and forested trails. All entry fees support the Bay Area Ridge Trail so your miles help protect local open space.

Run scenic trails at China Camp State Park in Santa Venetia with live and virtual 5K, 10K, and half marathon options on March 15, 2026. Expect technical single track, big climbs, and rewarding views for trail runners seeking a challenge.

Run through iconic Marin Headlands, Mt Tamalpais and Muir Woods in this scenic trail ultramarathon with 50 Mile and 50K options showcasing coastal views and big climbs. Expect technical single track, steep climbs and unforgettable scenery.