Trail Running calendar near Healdsburg 2026-2027

A trail race in the Marin Headlands with 8K, half, 30K and 50K options along coastal single-track and fire roads, marked courses, cupless aid stations, and a 350 runner capacity.

Monthly community hikes with an optional trail-run pace in Richmond organized by FIERCE Advocates, Moving Forward, and Richmond Run Club at 5551 Giant Highway.

An annual August trail event from Lake Chabot Marina offering a 50 km and a half marathon with volunteer aid stations and a plant-based finish festival.

Time based trail running at Skyline Wilderness Park in Napa where participants run as far as they can in 3 hour, 6 hour, or 12 hour formats on a 4.16 mile loop.

Bear Creek on August 8, 2026 offers 5K, 10K and a 13.32-mile half marathon in the Briones Regional Park area, with a virtual Remote Runner option. Entry windows and fees are listed for each race.

A 50K trail ultramarathon near San Francisco with about 6,600 feet of climbing across Coastal, Miwok, Matt Davis and Dipsea trails and a $10,000 prize 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.

A 5K trail race along the Lands End Trail in San Francisco with coastal views, finisher ribbons for all and awards for the top five overall runners.

A map based 5K and 10K navigation event in Fillmore and Japantown, San Francisco, with team options, checkpoint questions, and post event refreshments.

A 13.7 mile out and back on the Dipsea Trail from Stinson Beach to Mill Valley and back run with a handicapped start and annually adjusted waves.

Trail race around Angel Island with a 10K single loop and a half marathon that repeats the loop, limited to 400 participants and includes a ferry.

A steep 4.75 mile up and down run, hike, or walk on San Anselmo's Bald Hill that finishes downtown with live music and a t shirt. The third annual event benefits local nonprofits and includes town endorsement.

The 33rd annual Phil Widener Empire Open is a 3.4 miles PA/USATF cross country race at Spring Lake Regional Park featuring rugged trails and a $1500 prize purse.

Experience the natural scenery of Mount Diablo State Park through a variety of trail races. Runners can select distances ranging from 4 miles to a 50K with spectacular views of the San Francisco Bay Area.

A 6.45 miles trail race in Annadel State Park organized by the Empire Runners Club, held in early September with staggered age and gender starts, limited to 100 runners and awards for the top 13 finishers.

Experience the trails of China Camp State Park with a selection of distances including a 5K 10K and Half Marathon. Participants enjoy a post race festival with beer steins custom medals and local snacks.

Trail running festival in Mendocino Woodlands Park offering 10K, Half marathon and 6 hour and 12 hour timed events with camping and weekend food options.

Trail races at Tilden Regional Park in Berkeley with distances from 10K to 50K, cupless aid stations about every 5–7 miles, and a 350-runner capacity.

Run through Bishop Ranch and San Ramon in this diverse racing event. Choose between a half marathon, 10k, 5k, or beer mile before enjoying unlimited tastings with your finisher medal.

A 40th edition cross country meet in Golden Gate Park with an approximately 4 mile two loop course over grass, dirt, and rolling hills.