Trail Running calendar near Fairfield 2024-2025

The American River 50 Mile Endurance Run is one of the largest 50-mile races in the United States, attracting both experienced runners and newcomers. Set in a scenic area, the event features not only the 50-mile race but also a 25-mile and a 10-mile option, catering to various skill levels. Particip..

The Golden Gate Headlands Marathon will take place in Mill Valley on Saturday 5 April 2025. You can run between 10 and 26 miles.

The Annadel Half Marathon is a non-profit fundraising event held in Sonoma County, featuring a challenging course designed for experienced trail runners. Over the past 14 years, the event has successfully raised funds to enhance the beauty of the local park. The Half Marathon course includes over 1,..

The California Gold Rush Trail Run - Spring takes place in the scenic Marshall Gold Discovery State Historic Park in Coloma, CA, where gold was first discovered in 1848. Participants can choose from various distances, including a half marathon, 15K, 10K, 5K, a mile run, and a kids run. The courses f..

The Placer Trail Running Festival is an exciting event scheduled for 2025, featuring a variety of trail races in Northern California. The festival kicks off on April 12 with a challenging 50K race at Peninsula Campground in Pilot Hill, followed by a series of shorter races including 25K, 10K, 5K, an..

The SPASM Lake Chabot Trail Run is a diverse running event taking place at Lake Chabot Regional Park in Castro Valley, CA. Scheduled for April 12, 2025, it features multiple race distances including an 8K, Half Marathon, 30K, Marathon, and 50K, along with a free Kid's Run for children aged 6 and und..

The Lake Sonoma 50 is a premier running event taking place on April 12, 2025, in Healdsburg, California. It features three main races: the challenging 50-mile course, a marathon that loops around Lake Sonoma, and the Trail Sisters Women's Half Marathon. Participants can expect scenic routes with rol..

The Woodside Crossover is a running event taking place in Woodside, California. Participants can choose to compete in a 50K race, which promises a challenging and scenic experience. The event is set against the backdrop of the beautiful California landscape, making it an appealing choice for both se..

The Romancing the Island Half Marathon will take place in Belvedere Tiburon on Saturday 12 April 2025. You can run between 10 and 13 miles.

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. Participants traverse the scenic Robert Louis Stevenson State Park, with routes that include steep climbs and technical trails, offering ..

The Sierra Azul Trail Challenge is a premier running event held 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, making it suitable for runners of all levels. The ..

The Canyons Endurance Runs by UTMB® is a premier trail running event held in Auburn, California, known as the "Endurance Capital of the World™️." Scheduled for April 25-26, 2025, the event features multiple race distances, including a new 100-mile course, alongside 100km, 50km, and 25km options. Par..

The Hacienda Hills Trail Run - Spring, held at Almaden Quicksilver County Park in San Jose, CA, offers a thrilling day of trail running with nine different race distances, including a 50K, Trail Marathon, 30K, Half Marathon, 9 Mile, 10K, 5K, Mile, and a Kids Run. Participants can enjoy stunning Bay ..

The Miwok 100K is a renowned trail ultramarathon set in the stunning landscapes of Marin County, California. Known for its challenging course featuring 11,800 feet of elevation gain, runners are treated to breathtaking views of iconic landmarks such as the Golden Gate Bridge and Mount Tamalpais. The..

The Grizzly Peak Trail Run, scheduled for May 10, 2025, in Berkeley, CA, offers a variety of running events including a 10K, Half Marathon, 30K, Marathon, and 50K, along with a free Kid's Run for children aged 6 and under. The race starts at Lake Anza and winds through the scenic Tilden Regional Par..

The 13 Mile Trail Race Top Down is a half marathon event taking place in San Jose, CA, within the scenic Almaden Quicksilver Park and Sierra Azul Open Space Preserve. This inaugural race features a point-to-point course, with transportation provided to the starting point at Mt. Umunhum.Participants ..

The Napa Wilderness Trail Runs, hosted by Bay Trailrunners at Skyline Wilderness Park, offers a variety of trail running distances, including 40-mile, 50K, 30K, half marathon, and 10K options. This event caters to all levels of runners, from seasoned ultra-marathoners to beginners. Participants can ..

Run for Amma is an annual charity running event held at Skyline Ridge Open Space Preserve in Los Gatos, California. The event features three race distances: 50K, 30K, and 10K, with all proceeds benefiting the UCSF Julia Carnevale Lab for cancer research. Participants can enjoy scenic trails while co..

The Placerville Path Memorial Day Run is a scenic running event held on the El Dorado Trail in historic Placerville, California. Participants can choose from various distances, including a Half Marathon, 15K, 10K, 5K, Mile, and a Kids Run. The course features beautiful oak trees, rolling hills, and ..

The Calero Trail Run - Spring, held at Calero County Park in San Jose, CA, offers a variety of distances including 50K, Marathon, 25K, Half Marathon, 15K, 10K, 5K, and a Kids Run. Participants can enjoy scenic single-track trails, challenging hills, and dirt paths, making it an excellent training op..