Trail Running calendar near Folsom 2025-2026

The Burton Creek Trail Run is a scenic and challenging trail running event held within Burton Creek State Park near Tahoe City, California. Participants can choose from three distances: 6K, 12K, and a half marathon. The course features miles of single-track trails winding through pine forests and hi..

The Western States Endurance Run is a prestigious 100-mile ultramarathon held in Olympic Valley, California, starting at the site of the 1960 Winter Olympics. The course follows the historic Western States Trail, stretching from Olympic Valley to Auburn through rugged and remote terrain. Runners fac..

The Dirty Dozen Run is an annual trail running event held at Point Pinole Regional Shoreline in Richmond, California. It features 12-hour, 6-hour, and 3-hour endurance races on a scenic 3.37-mile loop composed mostly of dirt fire trails. The course offers expansive shoreline views, including multipl..

Blood, Sweat & Beers is a trail running event held in Auburn, California, nestled in the scenic American River Canyon. The race offers two challenging distances: a Long Course of 10.5 miles with 2,471 feet of elevation gain and loss, and a Short Course of 5.9 miles with 863 feet of elevation change...

Mountain Tiger Donner Summit is an 11-mile point-to-point mountain trail race held on Donner Summit in Tahoe, California. The challenging course features four summits and ridge running along Sugar Bowl and Royal Gorge trails, with 3,300 feet of elevation gain starting at 7,000 feet altitude. The rac..

The Lost Sierra Endurance Race, held in Downieville, California, offers a challenging trail running experience through the scenic 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 Pluma..

The Folsom 100 is an exhilarating 100-mile ultramarathon that takes place around Folsom Lake, California. Scheduled for August 1, 2025, this challenging race features a point-to-point course with a single out-and-back section. Participants have 34 hours to complete the loop, which includes stunning..

The Point Mariah Trail Marathon, hosted by Donner Party Mountain Runners, takes place near Truckee, California, at the Soda Springs Ski Resort. This unique trail marathon covers approximately 26.4 miles with about 4,300 feet of elevation gain, featuring a multi-loop course through the protected Roya..

Bear Creek is a trail running event held in Lafayette, California, featuring a half marathon, 10K, and 5K distances. The courses are known for their challenging hills rather than being flat or fast, offering runners and hikers a scenic experience through Briones Regional Park. Participants receive c..

The Pinecrest Run is an annual running event held in Pinecrest, California, set in the scenic Sierra Nevada mountains. Celebrating its 49th year, the event features a 5-mile recreational run that winds through the roads of Pinecrest and along the shores of Pinecrest Lake, offering beautiful natural..

The Trail Run at Sly Park - Summer is a scenic trail running event held at the Sly Park Recreation Area in Pollock Pines, California, within the El Dorado National Forest. The race offers multiple distances including 5K, 10K, 8 Mile, Half Marathon, 17 Mile, Trail Marathon, and a 50K ultra. Courses w..

The Mammoth Bar Trail Runs, hosted by Skybreaker Racing, is a trail running event held in Auburn, California, within the Auburn State Recreation Area. Scheduled for September 7, 2025, the event features three race distances: a half marathon, 10K, and 5K. The courses traverse the single-track and dou..

The Diablo Trail Run, held at Diablo State Park in Clayton, California, offers a variety of trail running events including 4-mile, 10-mile, half marathon, marathon, 50K, and a free kids' 50-yard dash for children six and under. The courses feature scenic mountainous terrain with spectacular views of..

XTERRA Lake Tahoe is a renowned off-road triathlon and trail running event set in the stunning scenery of Lake Tahoe, United States. The classic triathlon course features a 1.5K swim in the crystal-clear waters of Lake Tahoe, followed by a challenging 35.5K bike ride that includes a sandy climb up T..

The Gold Rush Growler Trail Runs, held at Granite Beach in Folsom Lake State Recreation Area, feature scenic 10-mile and 5K trail races along shoreline and single-track trails. The 10-mile course includes paved park roads, secret trails, and varied terrain with aid stations offering water, electroly..

The Rocky Ridge Trail Half Marathon is a challenging trail race held in the scenic Las Trampas Wilderness near San Ramon, California. Scheduled for September 20, 2025, the event features a half marathon, 10K, and 5K distances. Known for its tough terrain and significant elevation changes, the half m..

The Sunset & Cider Trail Races, held in Auburn, California's scenic American River Canyon, offer three trail running distances: 50K, 13 miles, and 5 miles. The courses feature mostly runnable single-track trails with some short neighborhood road sections and varying elevation gains—3,875 ft for the..

The Warrior Way 5K is a trail running event held at George Whittell High School in Zephyr Cove, Nevada, near Lake Tahoe. Hosted by the school's Student Council, the race features a scenic course through pine forests, crossing creeks and logs, with natural obstacles like trees and rocks. In addition..

The Reservoir Dogs Trail Run in Orinda, CA, offers 10K, Half Marathon, and 35K distances around the scenic Briones and San Pablo Reservoirs on East Bay Municipal Utility District (EBMUD) trails. This event features a mix of rolling fire roads, tree-covered single-track, and open views of watershed l..

The Auburn Half Marathon, held in Auburn, California—known as the Endurance Capital of the World™—offers trail running on the scenic Western States Trail. The event features a half marathon, 12K, and 5K races, all starting at Auburn Overlook Park and winding through the Auburn State Recreation Area...