Trail Running calendar near Rio Linda 2025-2026

The Napa Valley Trail Marathon will take place in Calistoga on Saturday 21 March 2026. You can run between 10 and 26 miles.

The Knickerbocker Canyon Trail Run, hosted by Inside Trail Racing, takes place in Auburn and Cool, California, starting at American River Overlook Park. Scheduled for March 28, 2026, the event offers four distances: 5K, 10K, Half Marathon, and a challenging 35K ultramarathon. Runners traverse the hi..

The Bad Ass Backyard Ultra (B.A.B.U.) is a challenging endurance running event held at Dry Creek Parkway in Rio Linda, California, near Sacramento. Participants run a 4.16-mile loop every hour, starting on the hour, with each loop called a "yard." Runners must be ready to start each new loop on time..

The Diablo Trails Challenge will take place in Walnut Creek on Saturday 4 April 2026. You can run between 5 and 50 kilometers.

The American River Endurance Run, held in Northern California, is the second largest 50-mile race in the United States. Starting in Folsom and finishing in Auburn, it attracts both experienced ultrarunners and newcomers. The event features three races: a 50-mile run from Folsom Point, a 25-mile run..

The Romancing the Island Half Marathon will take place in Belvedere Tiburon on Saturday 11 April 2026. You can run between 10 and 13 miles.

The Lake Sonoma 50 is a premier trail running event held in Healdsburg, California, featuring a 50-mile ultramarathon, a marathon, and the Trail Sisters Half Marathon. Set against the scenic backdrop of Lake Sonoma, the races offer challenging courses through beautiful natural terrain. The event fos..

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. Starting and finishing at the Calistoga Fairgrounds, the courses traverse scenic Robert Louis Stevenson State Park and ascend to the top..

The Badger Cove Half Marathon will take place in Livermore on Saturday 18 April 2026. You can run between 5 and 13 miles.

The Outlands Endurance Race, held at Peninsula Campground in Pilot Hill, California, offers challenging trail running distances of 25K, 50K, and 50 miles. Set along the rugged, scenic edges of Folsom Lake, the courses feature a mix of runnable single track and double-wide trails with significant ele..

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.

The Tails & Trails Charitable Walk/Run takes place in Windsor, California, at 11010 Estate Lane. This event offers a 5K run and a Dogwood Dash, with a virtual option allowing participants to complete any distance. The event supports a charitable cause and provides a welcoming atmosphere for runners..

The Rim Rock 50 Mile Trail Challenge is an inaugural ultramarathon set for May 16, 2026, in Napa Valley, California. Starting at Skyline Wilderness Park, the race covers approximately 50 miles through rugged, scenic trails including the Napa Open Space Preserve and the newly opened Suscol Headwaters..

The Napa Wilderness Trail Runs, held at Skyline Wilderness Park in Napa, California, offer a variety of trail running distances including 10K, 21K (half marathon), 30K, and a challenging 50K ultra marathon. The courses feature scenic routes with steep climbs, notably the Rim Rock Trail, providing st..

The Wildcat Half Marathon will take place in El Sobrante on Saturday 16 May 2026. You can run between 5 and 13 miles.

The Nitro Trail will take place in San Pablo on Saturday 30 May 2026. You can run between 5 and 13 miles.

The Broken Arrow Skyrace is California's first skyrunning event, held at Squaw Valley. It offers a variety of race distances including 11K, 18K, 23K, and 46K, along with special challenges like the Iron Face Challenge, Triple Crown, and Iron Crown. The event features rugged mountain terrain where th..

The Western States Endurance Run is the world’s oldest 100-mile trail race, starting in Olympic Valley, California, and finishing 100.2 miles later in Auburn, California. Established in 1974, the course traverses traditional lands of Indigenous Peoples and features over 18,000 feet of climbing and n..

The Lost Sierra Endurance Race, held in Downieville, California, offers a challenging and scenic trail running experience through the Sierra Nevada mountains. Scheduled for July 26, 2025, the event features three distances: 25K, 50K, and 100K. The 100K is an out-and-back course from Downieville to P..

The Signal Peak Trail Runs, held near Emigrant Gap, California, offer challenging trail races with distances of 50 kilometers and 24 miles. The event features an out-and-back course with a loop at the eastern end that includes summiting Signal Peak, providing stunning views of Bear Valley, Lake Spau..