Trail Running calendar near Redwood City 2026-2027

A 10-mile trail race in Redwood Regional Park with single-track terrain, a timed 0.8 mile hill climb, age-based handicap starts, limited to 250 runners, and a team competition.

A community Independence Day event at Sycamore Grove Park featuring a flat 5K on mixed paved and dirt trails and a 400 meter kids run for ages 10 and under. T shirts are included with race fees.

A team navigation run in San Francisco starting at Ghirardelli Square where teams of one to five use a custom map to find checkpoints, with refreshments and social time after the finish.

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 races of 10K, half marathon, and 30K run on technical dirt trails at Mt. Tamalpais near Stinson Beach, featuring steep climbs, ocean ridge views, marked aid stations, chip timing, and a cupless event policy.

Timed trail races at Point Pinole on July 25, 2026 offer 12 hour, 6 hour and 3 hour formats on a 3.37 mile loop with shoreline views and eucalyptus groves. Solo runners and two or three person teams are accepted, and entry includes an all d..

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.

Coastal trail races in the Marin Headlands on August 1 offer 8K, half, 30K and 50K options across non-technical dirt trails with steep climbs, chip timing, cupless aid stations, and scenic views of the Pacific and the Golden Gate area.

A loop trail race from Lake Chabot Marina through East Bay Regional Parks with substantial climbing, offered as a 50K and 21K on August 2, 2026. Finishers receive a shirt, socks, and a medal.

A time based trail event at Skyline Wilderness Park in Napa where runners cover as much distance as possible in 3, 6, or 12 hour events on a 4.16 mile loop with significant climbing; cupless and chip timed, 500 runner capacity.

A trail event at Sprig Lake Day Use Area in Gilroy offering 5K, 10K, and half marathon routes with substantial elevation gain; proceeds fund local running scholarships. Chip timing is used and the race is cupless.

Trail races in Lafayette on August 8 2026 include a half marathon, 10K and 5K through Briones Regional Park. All courses have hills and use electronic chip timing; finishers receive medals and shirts.

A 50K ultramarathon in Marin County on August 15, 2026, running iconic Coastal, Miwok, Matt Davis and Dipsea trails with about 6,600 feet of elevation gain. Part of the USATF PA Grand Prix and offering a $10,000 podium purse.

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.

Trail races on hilly mixed dirt and single track at Almaden Quicksilver Park with distances from 5K to 50K, aid stations, drop bag service for longer races, and mandatory course markings and cutoffs.

A five kilometer trail run along the Lands End Trail in San Francisco with views of the Golden Gate and the Pacific Ocean. The event lists a $10 entry fee, awards finisher ribbons, and requests no headphones or pets on course.

A community fundraising race in Oakland that supports the Oakland Cubs youth running team and its scholarship programs. The event features a Kids Fun Run and 5K trail runs at 3594 Sanborn Dr on August 16, 2026.

A community 10K and a 1 mile kids race through the redwoods in Felton, California, starting and finishing at Roaring Camp Railroads. The event supports the local business and community association and includes a pancake breakfast.

Trail races at Henry Cowell Redwoods State Park on August 22, 2026, offering 10K, half marathon, and 30K on single-track and coastal-influenced terrain with river crossings, chip timing, aid stations, and a cupless aid setup.