Trail Running calendar near San Ramon 2026-2027

Run the Quicksilver Endurance Runs at Almaden Quicksilver County Park in San Jose, with 100K and 50K trail courses through oak forests and ridge views. Fully stocked aid stations and finish BBQ await; the 100K is a Western States qualifier.

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..

Trailquake stages a half marathon, 10K and 5K on the redwood and pine trails of Sanborn Regional Park in Saratoga, California. Finishers receive custom medals and shirts and volunteer photographers provide free race photos.

Celebrate Mother's Day with a scenic 1K kids fun run plus 5K and 10K at Pinto Lake County Park. Enjoy trails and family fun while supporting Pajaro Valley Shelter Services and local families experiencing homelessness.

Choose from 10K to 50K trail runs at Skyline Wilderness Park in Napa, featuring steep climbs, valley views and well stocked aid stations. Camping, showers and park scenery make this a perfect weekend escape for trail lovers.

Celebrate the 15th Run for Amma on May 16, 2026 at Skyline Ridge in Los Gatos. Routes from 10K to 50K welcome all paces and 100 percent of registration proceeds support UCSF Julia Carnevale Lab.

Rim Rock 50 Mile Trail Challenge in Napa Valley is a scenic yet rugged two loop course through oak woodlands and exposed ridgelines at Skyline Wilderness Park. Run solo for 50 mile glory or team up for a two person relay and tackle the terr..

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.

Run the Wild Rose Half Marathon or 5K on May 16, 2026 in Roseville, CA, finishing at Moksa Barrel House. Enjoy scenic paved bike and park paths, a finisher medal, choice of tech shirt or BOCO hat, and a Moksa drink ticket for 21 and over.

Trail races at China Camp State Park in San Rafael on May 23, 2026 offer 5K, 10K and half marathon courses across single track trails with bay and Mt. Tam views. Aid stations provide packaged fuel and the event is cupless.

Nitro Trail 2026 is a trail running event at Point Pinole Regional Shoreline Park in San Pablo, CA on May 30, 2026, offering a half marathon, 10K and 5K. Organized by Brazen Racing, it includes a remote runner option and volunteer-supported..

Run scenic trails in Joaquin Miller and Redwood parks near Oakland, with distances from a 50 yard kids dash to marathon and 50K. Enjoy stocked aid stations, a technical Cinderella finish and shirts for preregistered runners.

Join San Mateo PALs 5K and 10K at Coyote Point on May 30, 2026 to support health and mental wellness. Race registration includes a T shirt and access to a free Wellness Fair, and the event welcomes families, strollers and dogs.

Trail races at Toro Park near Salinas, CA take place on rolling golden hills and smooth trails. Distances include Trail 10K, Half Marathon and Trail Marathon, and the weekend also features Spartan obstacle course races and spectator access.

Join Dirt Circus in Mill Valley for a free community running festival with social runs, an expo, pancake breakfast and local vendors. Costumes are encouraged and the event is cupless so bring a reusable bottle.

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.

The Bay Area 100 is a 100 mile point to point ultramarathon across Berkeley and Oakland ridgelines and redwood forests. With about 18,000 feet of climbing and a finish on the Skyline High School track, it offers a rugged, scenic test.

Rock the Loch offers 5K, 10K and half marathon around Lake Chabot with scenic but challenging trails. Live and virtual entries include a tech shirt, wooden medallion, post race snacks and a brewfest.

The Bay 2 Bankers 10K will take place in Fort Mason on Saturday 4 July 2026. You can run between 5 and 10 kilometers.

Run through coastal redwoods and riverside canyons in Santa Cruz with distances from 10K to 50K and a free kids run. Pre registered runners get shirts and all finishers earn a custom medal on scenic single track trails with full aid.