Trail Running calendar near Brisbane 2025-2026

Enjoy challenging coastal mountain trails at the Montara Mountain Trail Run in Pacifica, with distances from 10K to 50K plus a Kid's Run. Scenic single track, stocked aid stations, and great trail views make it a must for trail lovers.

Take on scenic technical trails at Lake Chabot Regional Park in Castro Valley with distances from 5K to 50K. Aid stations, chip timing and a cupless format make this a true trail challenge for all levels.

Zoom Angel Island is a trail running event on Angel Island, accessible via chartered ferries from Tiburon, California, offering spectacular views of Marin County and San Francisco. Distances include 5 miles, 10 miles, 15 miles, plus a Kids..

The The Rattlesnake Ramble will take place in Santa Venetia from Friday 13 March 2026 to Monday 16 March 2026. You can run between 5 and 21 kilometers.

Tackle iconic Marin Headlands and Mt Tamalpais on rugged coastal trails in the Marin Ultra Challenge, with 50 Mile and 50K options. Limited to 450 runners, the race offers live tracking, full aid stations, and finisher medals.

Event overview The Napa Valley Trail event takes place on Saturday, March 21, 2026, at Bothe-Napa Valley State Park in Saint Helena, California. The race is limited to 300 participants. Distances offered: Marathon Half Marathon 10K The ev..

Redwood (Spring) Trail Run is held at the Chabot Space & Science Center in Oakland, California, featuring multiple distances from 5 miles up to 50K, plus a Half Marathon, Marathon, 30K, a 5K, and several youth events. The course winds throu..

Run the scenic Lag Bon 10K on Sunday, March 22, 2026, along lakeside trails in Fairfax for a springtime challenge. Proceeds support Evidence Action's Safe Water Now program in honor of World Water Day.

Enjoy a scenic trail run along the historic Western Pacific route at Quarry Lakes in Fremont on March 28, 2026, with half marathon, 10K, 5K or remote entries. Brazen Racing welcomes runners, walkers and hikers on a mostly flat dirt and grav..

Event details The 41st annual Golden Gate Headlands race takes place on Saturday, April 4, 2026, at the Marin Headlands Visitor Center and Fort Barry area in Mill Valley, California. The event offers multiple distances: Marathon Half Marat..

Run scenic trails around Mount Diablo with distances from 5K to 50K, including a Brazen Ultra Half Series half marathon. Brazen Racing hosts this April event that benefits Save Mount Diablo and celebrates the region's protected open space.

Event overview The 35th annual Romancing the Island event takes place on April 11, 2026 at Angel Island State Park, Belvedere Tiburon, CA. The race offers two distances: Half Marathon - completes the island loop twice 10K - single loop aro..

Experience scenic trails at Lake Sonoma with three races on April 11: a Western States qualifier 100K, a challenging 50K, and the women only Trail Sisters Half Marathon. Volunteer aid stations, a Wilson Winery finish bottle, and weekend fes..

Explore Napa's wild side on scenic single track and fire roads around Mount St Helena, starting and finishing at the Calistoga Fairgrounds Great Lawn. Choose from 10K to 50K distances, with UTMB Index status for select races.

Run the scenic Horseshoe Lake Trail Run at Skyline Ridge in La Honda on April 18, 2026, with distances from 5 mile to 50K and a free kids dash. Expect rolling ridge single track, aid stations, and a friendly festival atmosphere.

Event overview Badger Cove Half Marathon/10K/5K 2026 takes place on April 18, 2026, at Del Valle Regional Park in Livermore, California. The event includes on-site race options at Lake Del Valle and a remote runner option. Hikers and walker..

Event The 2026 Mt. Tam Wild Boar Half Marathon & 10K takes place on April 25, 2026, at Mt. Tamalpais State Park in Mill Valley, California. The event is limited to 300 participants. Distances offered: Half Marathon 10K Course and logi..

Run the Miwok 100K from Stinson Beach through scenic Marin single track trails and big climbs. Run solo or as a four person relay; this UTMB index race and Western States qualifier champions sustainability.

Join Tails & Trails in Windsor on May 3, 2026 for a fun charitable walk and run supporting Dogwood Animal Rescue. Choose a 5K, the playful Dogwood Dash, or participate virtually to help animals and enjoy community spirit.

2026 Stinson Beach/Muir Woods Marathon, Half Marathon & 7 Mile The event takes place on May 9, 2026, at Stinson Beach Parking Lot in Stinson Beach, California. It is the 36th annual edition and the field is limited to 300 participants...