Trail Running calendar near Woodland 2025-2026

Experience scenic single track trails through Bothe Napa Valley State Park with marathon, half marathon and 10K options. Limited to 300 runners, this hilly, creek lined route showcases vineyard country and rewards finishers with medals and..

Run through towering redwoods in Oakland's Redwood Regional Park with distances from a kids 50 yard dash to a challenging 50K. Enjoy ribbon marked singletrack, stocked aid stations, custom finisher medals, and awards for top finishers.

Run the Lag Bon 10K on March 22 in Fairfax on a scenic, technical Lagunitas trail with roots, rocks and muddy sections. This small charity race supports World Water Day with proceeds to safe water programs and runners get a shirt and medal.

Run along the historic Western Pacific Trail at Quarry Lakes in Fremont on March 28, 2026, with 5K, 10K and half marathon options plus a remote runner category. Mostly flat dirt and gravel trails make for a scenic, friendly race for all pac..

Tackle scenic single track along the American River at Knickerbocker Canyon Trail Run near Auburn. Choose 35K, half marathon, 10K or 5K routes with river crossings, big climbs and rugged trail that rewards grit and views.

Run with sweeping views of the Golden Gate Bridge, San Francisco Bay and Pacific Ocean on scenic trails in the Marin Headlands. Choose Marathon, Half Marathon or 10K on April 4, 2026 in a 400 runner field for an intimate coastal challenge.

Join the Diablo Trails Challenge on April 4, 2026 at Mount Diablo with distances from 5K to 50K on scenic but demanding trails. A portion of entry fees benefits Save Mount Diablo and race day photos and a BBQ add to the experience.

Run the classic American River Endurance Runs from Folsom to Auburn, featuring 50 mile, 25 mile and 10 mile trail races that finish at the Auburn Overlook. Scenic river corridor, on course support, and a festive post race atmosphere.

Run Angel Island on a scenic hilly loop with sweeping Golden Gate, Alcatraz and Bay views. Choose a 10K or a half that circles the island twice at the 35th annual event limited to 400 runners, ferry included.

Lake Sonoma race weekend in Geyserville on April 11, 2026 hosts a Western States qualifying 100K, a rolling 50K, and the Trail Sisters half for women. Expect scenic lake overlooks, lively aid stations, and campground vibes.

Join the SPASM Lake Chabot Trail Run on April 11 for scenic loops around Lake Chabot with distances from 8K to 50K for every level. Enjoy rolling hills, color coded trails, tech shirts for pre registered runners and custom finisher medals.

Napa Valley Endurance Run in Calistoga on April 12 offers 50K, 35K, half marathon and 10K across scenic single track and fire roads. Expect big climbs, vineyard views, UTMB Index status and a custom finisher medal.

Outlands Endurance Race at Peninsula Campground in Pilot Hill offers lakeside singletrack and double wide trails around Folsom Lake on 25K, 50K and 50M out and back courses. Full aid, finisher swag, wood awards and a post race meal.

Enjoy springtime trails at Del Valle Regional Park with the Badger Cove Half Marathon, 10K, 5K or remote option on April 18, 2026. Scenic lake routes, chip timing, finisher medal and tee make it a great day for runners and walkers.

Run scenic trails around Annadel State Park in a community fundraiser with a half marathon, 10K and 5K. Celebrate Earth Day with cup free aid stations and help support Trione Annadel State Park and Sonoma County Parks Foundation.

The Canyons Endurance Runs will take place in Auburn from Friday 24 April 2026 to Saturday 25 April 2026. You can run between 25 and 161 kilometers.

Run the scenic 38th Mt Tam Wild Boar at Mt Tamalpais State Park on April 25 2026, choose the half marathon or 10K, and enjoy coastal ridge views and single track trails. Field limited to 300 so register early.

Tackle the iconic Miwok 100K through the Marin Headlands on May 2, 2026, where redwoods, ridgelines, and coastal views await. Limited to 400 runners, this supported trail ultramarathon blends rugged challenge with community and sustainabili..

Join Tails & Trails on May 3, 2026 in Windsor CA to support Dogwood Animal Rescue with a fun 5K, Dogwood Dash, or virtual option. Bring your pup for a dog friendly run and help animals in need.

Run from Stinson Beach into the ancient redwoods of Muir Woods on a scenic, rugged course with ladders, staircases, streams and summit views. Choose marathon, half marathon or 7 mile on May 9, 2026; field limited to 300 runners.