Trail Running calendar near Piedmont 2026-2027

An annual trail race on the north shore of Lake Natoma in Fair Oaks offering 5K and 10K courses through wetlands, oak bluffs, and historic gold-dredge terrain, with proceeds supporting a local scholarship.

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 the scenic trails of Lagoon Valley Park at The Pena Passage. Choose from 30K, 10K, or 5K distances featuring rolling hills and oak groves in a natural setting.

Experience a scenic 5K or 10K run or walk through the flat dirt trails and green hills of Henry W. Coe State Park in Gilroy.

A charitable walk and run on June 14, 2026 at Howarth Memorial Park in Santa Rosa, CA. The event includes an in person 5K, a Dogwood Dash and a virtual any distance option; registration is coming soon.

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 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.

Rancho Hills Trail Run on July 5, 2025 at Rancho Cañada del Oro offers distances from 5K to 50K on hilly single track with scenic Bay Area views, two aid stations, limited facilities, and strict cutoffs for longer distances.

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.

A coastal mountain trail race in Stinson Beach offering 10K, half marathon and 30K courses with steep climbs, ridge single track, redwood sections, and a descent on the Dipsea Trail. Aid stations and volunteer support are provided.

Test your limits at Point Pinole Regional Shoreline with three 6 or 12 hour endurance runs on a scenic coastal loop. Enjoy a party atmosphere with an all day picnic and options for individual or team participation.

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.

Join the Bear Creek 2026 trail run in Lafayette for a Half Marathon, 10K, or 5K featuring scenic views and shaded single-track trails. Runners and walkers alike will enjoy this professionally timed event with custom medals and shirts.

A 50K single loop ultramarathon around the Marin Headlands with about 6,500 feet of elevation gain, varied trail and fire road terrain, and start and finish at Santos Meadows. A Kids One Mile Challenge is also offered.

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.