Trail Running calendar near Santa Cruz 2025-2026

Challenge yourself at the 39th Golden Gate Park XC Open on November 1, 2025 in San Francisco, a scenic two loop 5k over grass, dirt and rolling hills. The event hosts the USATF Masters 5k XC National Championship alongside competitive open..

Join the ZombieRunner Halloween at Hellyer County Park in San Jose for a spooky, family friendly race day with distances from a kids dash to a full marathon. Costume contest, festive aid stations, and custom finisher medals add extra fun.

Challenge yourself on the Almaden Hills Trail Run in San Jose on November 1 at Almaden Quicksilver Park. Scenic, very hilly trails with dirt roads and single track offer distances for every runner from 5K to 50K.

Run through towering redwoods at the Oakland Tech 5 km fundraiser, with a 1 mile fun run or walk for all levels. Enjoy scenic trails while supporting Oakland Tech PTSA and the school cross country team.

Enjoy scenic redwood trails at Huddart Park with distances from 3 Mile to Half Marathon, plus a family Mermaid Dash for kids. Try the festive 6 Hour Challenge to see how many 3 Mile loops you can cover, or join virtually.

Join scenic trails around Lake Chabot on November 8, 2025 with distances from 8K to 50K and a free kids dash. Expect rolling hills, well marked routes, finisher medals and tech shirts for pre registered runners at the Marina.

Run scenic, technical trails on Mt Tam with sweeping coastal views and big climbs, then celebrate with food and drinks on Stinson Beach. Four distances from 10K to 50K welcome every level of trail runner.

Take on the rolling, scenic trails of Rancho Cañada del Oro in Morgan Hill with distances from 5K to 50K. Expect challenging hills, mixed singletrack and fire road, creek crossings and big views framed by old oaks for a true trail running a..

The Ripon Turkey Trail Run is a community-focused running event held in Ripon, California, at Mavis Stouffer Park along the Stanislaus River Trail. Scheduled for November 15, 2025, the race offers three distance options: 5K, 10K, and a half..

The Golden Gate Trail Classic will take place in San Francisco from Saturday 22 November 2025 to Sunday 23 November 2025. You can run between 15 and 50 miles.

Celebrate Thanksgiving at the Zoom Turkey Trot in San Jose at Hellyer Park with a USATF certified half, 10K, 5K and kids runs, plus t shirts and finisher medals. Flat, fast courses and stocked aid stations welcome all abilities.

Join the Quarry Turkey at Quarry Lakes on November 29 for a fast, mostly flat trail 5K, 10K or half marathon with a free kids sprint and family friendly Thanksgiving costumes encouraged. Proceeds benefit Alameda County Community Food Bank.

Quad Dipsea in Mill Valley is a brutal but beautiful 28.4 mile trail challenge with about 9,000 feet of climbing on the legendary Dipsea Trail. Stairs, steep single track and ocean views make the out and back to Stinson Beach an unforgettab..

Run Krampus Cross Country in San Francisco live on Dec 7 or virtually Dec 5 to 8 with 5K 10K and the Naughty Nine Miler. All entrants get a wooden woodallion a Krampus tee and a beer sampler stein plus a brewfest on Dec 5.

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 anything from a 50 yard kids dash to a marathon at Quarry Lakes Regional Recreation Area in Fremont, CA on Dec 6, 2025. Enjoy a mostly flat, scenic Alameda Creek Trail course with pre registered shirts, custom finisher medals and aid st..

Run scenic Marin trails at China Camp State Park with 30K (19.5 miles), Half Marathon (13.1 miles) or 10K. Expect technical dirt trails, a small field vibe, and a cupless format so bring your own bottle.

Run the iconic Hunter S. Thompson Fear & Loathing in San Francisco on December 7, a free grassroots single loop that winds past city landmarks and finishes at Twin Peaks. Choose 50 mile or 50K distances and help support Shoes For Runners.

Run through redwood groves on winding single track trails in the Santa Cruz Mountains at Summit Rock, a scenic trail race just outside Silicon Valley. Half marathon, 10K and 5K distances welcome walkers and hikers with a separate hiker star..

Run a scenic, challenging loop around Angel Island with sweeping views of the Golden Gate, Alcatraz and San Francisco. Choose the half marathon or 10K and ride the chartered ferry to this intimate 400 runner event.