Trail Running calendar near San Leandro 2025-2026

Join Tails & Trails on May 3, 2026 in Windsor, CA for a charitable walk and run supporting Dogwood Animal Rescue. Choose a 5K, the family friendly Dogwood Dash, or participate virtually while helping animals in need.

Join Angwin to Angwish, a scenic trail run through Pacific Union College woods with 26K, 10K and a 1 Mile Kids Run for ages 7 to 12. Family friendly, cupless event with race day check in and proceeds benefiting PUC Athletics.

Experience towering redwoods and coastal views at the 36th Stinson Beach Muir Woods Trail Run on May 9, 2026. Choose marathon, half, or 7 mile routes in an intimate field of 300 for a scenic, rugged adventure with T shirts and medals.

Run the scenic Berkeley hills from Lake Anza in Tilden Park with distances from 10K to a rugged 50K, plus a free kids dash. Register early for a tee, all finishers get a custom medal, and parking is free.

Join the Race for Open Space on May 9, 2026 in Carmel By The Sea, a scenic trail fundraiser supporting Big Sur Land Trust and access to Monterey County parks. Pick a distance from a fun mile to a rugged 35k plus and enjoy marked trails.

Tackle scenic hilly trails at the Quicksilver Endurance Runs on May 9 in Almaden Quicksilver Park. Choose 50K or Western States qualifying 100K, enjoy stocked aid stations and a post race BBQ while supporting youth and trail nonprofits.

Join the Wine Half Marathon in Napa Valley on May 9, 2026, a 13.1 mile route through vineyards from Rutherford to Yountville. Founded by four French American wine professionals, the race blends warm hospitality, surprises, and scenic trails..

Join Trailquake 2026 on May 10 at Sanborn Park in Saratoga for scenic trail runs along the San Andreas Trail through towering redwoods and pines. Half marathon, 10K, 5K and remote options welcome walkers, hikers and runners of all levels.

Hit rugged singletrack at the Napa Wilderness Trail Runs in Skyline Wilderness Park, with 10K, 21K, 30K and 50K options. Expect steep climbs, sweeping valley views, spaced aid stations and a true backcountry trail experience.

Celebrate the 15th anniversary of Run for Amma, a charity trail race at Skyline Ridge Open Space Preserve in Los Gatos supporting UCSF cancer research. Choose 50K, 30K or 10K routes on scenic trails and help fund lifesaving research.

Run Napa's Rim Rock 50, a rugged two loop trail challenge with solo and two person relay options. Camp at Skyline Wilderness Park and refill at cupless aid stations while enjoying scenic wildland views.

Join Wildcat 2026 on May 16 in El Sobrante for scenic half, 10K, 5K and remote run options that boast 360 degree views of the Bay Area. Run for fun or support the East Bay Regional Parks Campership Program.

Hit the trails at Point Pinole for Nitro Trail 2026, offering 5K, 10K, half marathon and remote options on scenic coastal trails. A relaxed hiker start welcomes walkers tackling the half marathon.

Cinderella Trail Run at Joaquin Miller Park, Oakland on May 30 offers distances from 8K to 50K plus a free kids dash. Run scenic redwood trails, earn a custom finisher medal, and enjoy stocked aid stations and shirts for pre registrants.

Join a community 5K run or walk along the scenic bay trail at Seal Point Park, capped off with a free Wellness Fair featuring local health and wellness vendors. Race registration includes a T shirt and supports mental and community wellness..

Run the Monterey Trail Experience by Spartan Trail at Toro Park in Salinas, CA on May 31, 2026. Choose from marathon, 21K or 10K routes across rolling golden hills and smooth coastal trails for a scenic challenge.

Run scenic trails at Lake Chabot on June 7, 2026 in a chip timed half marathon or 5K with ridge top views of Mt Diablo and the Bay. Presented by Castro Valley Sports Foundation as a fundraiser with finisher medals.

Run the Bay Area 100 on June 13, 2026, a point to point 100 mile race from UC Berkeley to Skyline High in Oakland. Enjoy epic East Bay ridge and redwood scenery with about 18,000 ft of climbing and a 33 hour cutoff.

Enjoy coastal redwoods and river crossings in Santa Cruz at the San Lorenzo River Trail Run, with distances from 10K to 50K and a free kids run. Pre registered runners get shirts and all finishers earn custom medals.

Run a scenic loop from Lake Chabot Marina through East Bay Regional Parks with 50K and half marathon options. Enjoy staffed aid stations, race shirt, Skyline socks and a finisher medal on this well supported trail event.