Trail Running calendar near Napa 2025-2026

The Folsom Lake Falcon Crest Trail Run, scheduled for March 29, 2025, takes place in the scenic foothills of El Dorado Hills, California. Participants can choose from various distances, including a 5K, 10K, 8-mile, and half marathon, all set on beautiful single-track trails that offer a mix of fast..

The Western Pacific event features a half marathon, 10K, and 5K, taking place in Fremont, California. Organized by Brazen Racing, this race utilizes the historic Western Pacific Trail, known for its flat and fast terrain, making it ideal for runners and walkers of all levels. The courses primarily c..

The Terrible, Horrible, No Good, Very Bad Day 50K is a unique trail running event set for March 29, 2025, in Los Gatos, California. This non-supported, fatass run features challenging options, including a 50K with 10,900 feet of elevation gain, a 30K fun run, and a 10-mile Puppymeat run. Participant..

The Lag Bon 10K is a trail running event taking place in Fairfax, California, on March 30, 2025. This moderately challenging course features beautiful trails around Marin County's pristine reservoirs, with an elevation gain/loss of approximately 400 feet. The event aims to raise funds and awareness..

The Santa Teresa King Richard Annual Trail Run is a cherished event held at Santa Teresa County Park in San Jose, CA, designed to honor the legacy of Richard Limb. Participants can choose from various distances, including a half marathon, 10-mile, 10K, and 5K, all set against the park's stunning lan..

The Golden Gate Headlands Marathon, Half Marathon, and 10K is a scenic running event taking place on April 5, 2025, in the Marin Headlands, California. Celebrating its 40th annual edition, the race offers participants breathtaking views of the Golden Gate Bridge, San Francisco Bay, and the Pacific O..

The American River 50 Mile Endurance Run is one of the largest and most prestigious 50-mile races in the United States, attracting both seasoned runners and newcomers. Set against the stunning backdrop of Northern California, the race follows the American River Parkway from Folsom to Auburn. Partici..

The Diablo Trails Challenge is a running event taking place on Mount Diablo, featuring various distances including a 50K, half marathon, 10K, and 5K. Scheduled for April 5, 2025, this challenge caters to runners of all experience levels, from beginners to seasoned ultra-runners. A portion of the ent..

The Annadel Half Marathon, along with its 10K and 5K events, is a prominent non-profit fundraising race held in Sonoma County. Over the past 14 years, it has successfully raised funds to enhance the beauty of Annadel State Park. The challenging Half Marathon course features over 1,500 feet of elevat..

The 2025 Romancing the Island Half Marathon and 10K is set to take place at Angel Island State Park in Belvedere Tiburon, California. This annual event, now in its 34th year, features a scenic loop trail that offers stunning views of the Golden Gate Bridge, San Francisco, and surrounding areas. Part..

The SPASM Lake Chabot Trail Run is a multi-distance running event taking place at Lake Chabot Regional Park in Castro Valley, California. Scheduled for April 12, 2025, the event features various race options including an 8K, Half Marathon, 30K, Marathon, and 50K, along with a free Kid's Run for chil..

The Rodeo Beach Rumble is an exciting running event taking place in the stunning Golden Gate National Recreation Area, near San Francisco. Participants can choose between an 8K and a Half Marathon, both offering breathtaking views of the Bay Area and unique military landmarks along the routes. The e..

The Lake Sonoma 50 is an exciting running event taking place in Healdsburg, California, featuring a 50-mile race, a marathon, and the Trail Sisters Half Marathon. Scheduled for April 12, 2025, this event is presented by adidas TERREX and includes live streaming coverage, athlete panels, and special..

The Woodside Crossover is a trail running event taking place at Huddart County Park and Purisima Creek Redwoods Open Space Preserve in Woodside, California. Scheduled for April 12, 2025, the event features multiple race distances, including 10K, Half Marathon, 35K, and 50K, catering to runners of al..

Outlands is an exciting endurance race set to take place on April 12, 2025, at Peninsula Campground in Pilot Hill, California. Participants can choose between two challenging distances: a 50K and a 50-mile race, both designed to showcase the stunning trails and natural beauty surrounding Folsom Lake..

The Napa Valley Endurance Run is a challenging trail running event held in Calistoga, California, featuring four race distances: 50k, 35k, half-marathon, and 10k. The race takes participants through the scenic Robert Louis Stevenson State Park, offering stunning views and technical trails. The 50k c..

The Sierra Azul Trail Challenge is an exciting running event taking place in the scenic Sierra Azul Open Space Preserve, near San Jose, CA. Participants can choose from various distances, including a 50K, Trail Marathon, 20 Mile, Half Marathon, 7 Mile, and 5K. This challenging race offers a unique o..

The Badger Cove Half Marathon, along with 10K and 5K events, will take place on April 19, 2025, in Livermore, California, at Lake Del Valle Regional Park. This trail race invites participants of all levels, including walkers and hikers, to enjoy the scenic emerald hills. Runners will receive custom..

The Go Wild! Peninsula event in San Carlos offers participants a thrilling 4-hour trail and wilderness scramble amidst beautiful spring wildflowers and scenic views. Teams of 1 to 5 will navigate using a custom map to locate up to 24 checkpoints along the trails and natural landscapes of Redwood Cit..

The Horseshoe Lake Trail Run is an exciting running event taking place at the Skyline Ridge Open Space Preserve in La Honda, California. Scheduled for April 20, 2025, the event features multiple race distances, including a Half Marathon, 30K, 5-mile run, and a free Kid's Run for children aged 6 and..