Trail Running calendar near Gilroy 2026-2027

A multi-distance trail running event at Calero County Park on May 30, 2026, featuring single track, hills, aid stations, and a commemorative medal for finishers. Distances range from a Kids Run up to a 50K described as a Western States trai..

Toro Park Trail Run in Salinas presents scenic trail routes through rolling golden hills and oak stands. Distances include a 10K, a half marathon and a 50K and the weekend also features Spartan obstacle races.

A community run and expo in San Francisco on June 6, 2026 featuring group runs of 3.2 miles and 4.5 miles, vendor booths, a pancake breakfast, and a raffle with prizes.

A trail event at Almaden-Quicksilver County Park on June 7, 2025 offering distances from 5K to 50K, steep climbs, marked courses, aid stations, and toilet facilities. The 52 mile race is not held in 2025 and is planned to return in 2026.

Experience the 42nd annual Lake Chabot Trail Challenge featuring a scenic half marathon loop and a paved 5K run. Enjoy views of the San Francisco Bay and Mt Diablo while competing for medals on chip timed courses.

Experience a point to point 100 mile ultramarathon from UC Berkeley to Oakland. This trail race features 18,000 feet of elevation gain through redwood forests and scenic ridgelines with expansive California views.

Experience a fixed-time event at Crissy Field with stunning views of the Golden Gate Bridge. Run or walk as many laps as you choose in three six or twelve hour blocks as an individual or part of a team.

A 5K and 10K run or walk through fairly flat dirt trails in Henry W. Coe State Park, featuring spring flowers, green hills, and creek crossings, with race day registration, packet pickup, T-shirts while supplies last, and group pricing.

Trail races at Fort Ord National Monument offering 50K, 35K, half marathon and 10K on varied trails with rolling hills, single-track and wildflower fields. The event is cupless and aid stations provide food and hydration options.

Experience the scenic trails of Lake Chabot Regional Park with a variety of distances including a 5k, 10k, and half marathon. Enjoy a lively atmosphere with a post-race brewfest and handcrafted finisher awards.

A July 3, 2026 event at Sycamore Grove Park in Livermore with a flat 5K on mixed paved and dirt trails plus a free untimed 400 meter kids run for ages 12 and under. Registration windows and fees differ by race.

A map-based mystery run from Ghirardelli Square through classic San Francisco neighborhoods, with team navigation, chip-tagged checkpoints, 5K and 10K options, age and gender divisions, and post-event snacks and socializing.

Multiple trail distances from 5K to 50K on very hilly single track and dirt roads at Rancho Cañada del Oro. The course features scenic foothill views, two aid stations, enforced cutoffs, and finishers receive a medal.

Experience a scenic trail run through ancient Coastal Redwoods and lush river canyons in Santa Cruz. Choose from multiple distances including a 50K and marathon with several river crossings.

Trail running at Calero County Park with multiple distances across single track and dirt paths, significant climbs, aid stations and free parking at the park.

Trail races of 8K, half marathon, 30K and 50K run from Rodeo Beach through the Marin Headlands with coastal singletrack and ocean views. The event is limited to 350 runners and the 50K has an 8.5 hour time limit.

A classic trail event in Castro Valley offering 50K and 21K loop courses through East Bay Regional Parks, with on-course aid stations, volunteer support, race swag, and age-group awards.

Experience a trail run through redwood trees and mountain peaks at the Mt. Madonna Challenge. Choose between steep 5K, 10K, and Half Marathon courses while supporting local youth running scholarships.

Bear Creek 2026 in Lafayette California offers a half marathon, 10K, 5K and a remote runner option on August 8, 2026. The trail course includes hills, scenic views and a final mile of downhill shaded single track.

Experience the trails of Redwood Regional Park in Oakland. Runners can choose from distances ranging from a 50 yard kids dash to a 50K ultramarathon through scenic ridge lines and redwood groves.