Trail Running calendar near El Dorado Hills 2026-2027

A trail event in Downieville, California with 25K, 50K, and 100K options on mostly singletrack. Courses include multiple aid stations, substantial elevation gain, and specific equipment and pacer rules for the 100K.

A 12.5 mile point to point mountain trail race on Donner Summit near Soda Springs California. The course includes four summits, about 3,300 feet of elevation gain, shuttle transportation and a unique finisher item.

Trail races in the American River Canyon with long and short courses across rocky single track, dirt roads, canals and hills.

A multi-loop trail marathon near Soda Springs, CA covering about 26.4 miles and 4,300 ft of gain across Royal Gorge land, with a central aid station, solo and relay options, parking at Soda Springs Ski Resort, and shuttle service to the aid..

Time based trail running at Skyline Wilderness Park in Napa where participants run as far as they can in 3 hour, 6 hour, or 12 hour formats on a 4.16 mile loop.

The Thunder Mountain 50K Trail Challenge will take place in Kit Carson on Saturday 8 August 2026. You can run between 6 and 50 kilometers.

Bear Creek on August 8, 2026 offers 5K, 10K and a 13.32-mile half marathon in the Briones Regional Park area, with a virtual Remote Runner option. Entry windows and fees are listed for each race.

A 50th annual running event in Pinecrest, California featuring a five mile route around Pinecrest Lake and a one mile pavement race. The event raises funds for Pinecrest Expedition Academy and pets are not allowed.

Trail races based at Spooner Lake in Lake Tahoe Nevada State Park. The Marlette 50K covers about 30 miles of Sierra single track with Marlette Lake at mid course while the 10 Miler is a round trip to Marlette Lake.

Trail Run at Sly Park in Pollock Pines offers trail distances from 5K to 50K around Jenkinson Lake with on-site registration, marked courses, aid stations, and finisher medals.

A largely off-trail peak-bagging event in Desolation Wilderness near South Lake Tahoe, offering 11-, 17- and 21-peak options on an unmarked route that requires navigation and mountaineering skills.

A trail 5K and 10K at Granite Beach for runners with or without dogs, featuring shaded single-track trails, mid-course aid stations, finisher medals and dog bandanas.

A two-day Spartan obstacle race at Mahon Ranch near Sacramento featuring Sprint 5 km, Super 10 km, kids races, team entries, volunteer options and spectator access.

A community run in Tahoe Vista with a 5K and a 1 mile fun run across grass fields, paved bike paths and park trails. Parking and a participant hat are included, and proceeds support a park nonprofit.

Trail races at Mammoth Bar OHV Area in Auburn State Recreation Area on September 6, 2026. Options include a 13.1 mile half marathon and a 6.2 mile 10K, each with notable elevation gain and staffed aid stations.

Experience the natural scenery of Mount Diablo State Park through a variety of trail races. Runners can select distances ranging from 4 miles to a 50K with spectacular views of the San Francisco Bay Area.

A point-to-point trail run around Emerald Bay of about 7 miles (approximately 11 to 12 km). The single-track course includes granite steps and moderate climbs and finishes at Lester Beach with shuttle service back to the start.

Run through Bishop Ranch and San Ramon in this diverse racing event. Choose between a half marathon, 10k, 5k, or beer mile before enjoying unlimited tastings with your finisher medal.

The Xterra Lake Tahoe will take place in Incline Village on Sunday 13 September 2026. You can run between 5 and 10 kilometers.

Mile Madness is a looped trail endurance event in Auburn, California, held September 18-21, 2026. Timed events run from 3 to 72 hours with a 0.75 mile loop and options including a 100 mile race plus on-site aid and amenities.