Trail Running calendar near Downtown San Jose 2025-2026

The 27th Annual Matt Yeo Memorial Aggie XC Open, presented by the HOKA Aggies, is held at Radke Martinez Regional Shoreline in Martinez, California. The meet features three 4.1-mile cross-country races for Women, Masters Men, and Open Men,..

Join the Quicksilver Trail Challenge at Almaden Quicksilver County Park in San Jose on Oct 25, 2025. Pick a scenic half marathon, 10K, or free kids one mile and explore single track trails with sweeping Mt Umunhum views.

Event overview The Haunted Hills 5K & 10K is a Halloween-themed walking and running event in Redwood City, CA, on October 25, 2025. It is organized as a trick-or-treat style course for adults and families. Participants form teams of 1 t..

Tackle the Oakland Hills Trail Run at Redwood Regional Park with scenic, technical singletrack and fire road courses offering 35K, half marathon and 10K options. Well marked routes, full aid stations, cupless rules and chip timing create a..

Event details The Almaden Hills Trail Run - Fall takes place on November 1, 2025 in San Jose, California. The event is based at Almaden Quicksilver Park in the Almaden Valley area, with a listed location of 19535 Mockingbird Hill Lane. Regi..

The 39th Golden Gate Park XC Open, held at Lindley Meadow (30th Ave & JFK Dr) in San Francisco's Golden Gate Park, is a 5k cross-country race over grass, dirt, and rolling hills. It features Masters Women 40+ and Masters Men 40+ along with..

Celebrate Halloween at ZombieRunner in San Jose's Hellyer Park with races from a kids 50 yard dash to a marathon on the flat Coyote Creek trail. Dress in costume for the contest and enjoy shirts for preregistered runners and finisher medals..

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.

Challenge yourself at the Rancho Hills Trail Run in Rancho Cañada del Oro Preserve, Morgan Hill, on November 8 2025 with distances from 5K to 50K. Expect steep climbs, oak shaded creek sections, panoramic views, aid stations and a finisher..

Take on Mt Tam's scenic but rugged trails above Stinson Beach with distances from 10K to a challenging 50K. Expect technical singletrack, aid stations, finisher medals and a sold out field with a waitlist for this popular November race.

Join the Lake Chabot Trail Run in Castro Valley on November 8, 2025 for scenic routes around the reservoir and rolling hills with distances from 8K to 50K plus a kids dash. Pre registered runners get shirts and all finishers earn medals.

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..

Test your endurance at The Captain’s Runaround in Riverbank on November 22, 2025, a timed loop race where you log as many miles as possible. Pick 8, 6, 4 or the new 2 hour sessions on a just under one mile loop at Jacob Myers Community Park..

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.

Run Quarry Turkey at Quarry Lakes Regional Park in Fremont for a festive trail race featuring a half marathon, 10K, 5K and a kids Little Turkeys race. Mostly flat trails welcome walkers and runners in costumes, and donations support the Ala..

Quad Dipsea : November 29, 2025 The Quad Dipsea is a trail ultramarathon held in Mill Valley, California. It is the 42nd running and covers 28.4 miles with about 9,000 feet of total ascent. The course is an out-and-back from Old Mill Park t..

The Krampus Cross Country is a festive running event held in San Francisco, California, featuring live and virtual options. Participants can choose from three distances: a 5K, 10K, or the challenging Naughty Nine Miler. The live races start..

Event details The Calero Trail Run - Winter is set for Saturday, December 6, 2025, at Calero County Park in San Jose, California. The event offers multiple trail distances: 50K Trail Marathon 25K Half Marathon 15K 10K 5K Mile Kids Run Rac..