Trail Running calendar near Folsom 2026-2027

A 6.45 miles trail race in Annadel State Park organized by the Empire Runners Club, held in early September with staggered age and gender starts, limited to 100 runners and awards for the top 13 finishers.

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.

Trail runs in Incline Village, NV offering 5K and 10K routes through tall pines, aspens, and creek crossings. The 10K is two laps with the second lap returning through the Village Green for spectator viewing.

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.

Trail runs at Granite Beach on Folsom Lake with new 10 mile and 5K courses, aid stations, age group awards, a finisher beer glass and a postrace meal.

Rocky Ridge in San Ramon, CA on September 19, 2026 features a trail half marathon plus 10K, 5K and virtual options. The courses include hills and scenic viewpoints.

A community ultramarathon and hike at Skyline Wilderness Park in Napa, CA, featuring a 3.3-mile loop repeated up to ten times in an hourly format to raise funds for the Pheo Para Alliance.

The Great Trail Race is a point to point event between Truckee and Tahoe City, California, on Saturday, September 26, 2026. Participants may choose gravel bike, mountain bike, or trail run and select either an Elite or Classic course.

Trail running event in Auburn, CA on September 27, 2026 offering half marathon, 12K and 5K distances with start and finish at Overlook Park and much of the half on the Western States Trail.

A student-run trail event on September 27, 2026 at George Whittell High School in Zephyr Cove, Nevada. It features a 5K trail and an 800 meter kids' fun run, with natural trail features, student-designed shirts sold separately, and no pets..

Yuba Gold is a self guided *50K* on the original point to point course near Nevada City, CA, held October 1 to 31, 2026. Runners complete the course in one continuous outing and submit an activity link for verification and ranking.

Trail runs near Bear Valley and Lake Spaulding with a 50K and a 24 mile option. The 50K includes a summit loop with about 5,700 ft of gain, rocky sections on Signal Peak OHV Road, cupless aid stations, and finisher medals.

Trail races in South Lake Tahoe on October 4, 2026, including a half marathon, 10K, 5K, and a non-competitive Tadpole Trot for children; aid stations, recycled event shirts, RRCA sanctioning, and proceeds to local charities.

Trail races in Auburn, California along the American River Canyon rim with live music and free cider. Distances include a 50K, a half marathon and a 5 mile course with aid stations on the longer routes.

Granite Head Trails & Ales Trail Races feature 6.6-mile and 11.2-mile courses. Runners get a tech T-shirt and can enjoy post-race fajitas and a beer. The event is the final race in a local trail running series.

A 12.4 mile loop up to the Mount Diablo summit and back with about 4,000 feet of climbing and descending. The race starts and finishes at Mitchell Canyon and includes shuttle service, a post race raffle and a finisher item.

Trail distances from 5K to 35K around San Pablo Reservoir on EBMUD trails, with marked single-track, cupless aid stations, chip timing, and a 300 runner capacity.

A limited entry fatass trail run near Foresthill, California on October 10, 2026, offering 25 mile and 50 mile courses along the North Fork of the American River with substantial elevation gain and off trail sections.

Trail races in Nevada City on October 11 2026 include a 13.1 miles half marathon, a 10K and a 5K with mixed terrain, aid stations and views along Deer Creek. Organized by Sierra TrailBlazers and Bear Yuba Land Trust.

Insomnia is a night trail race in the Sierra Nevada foothills offering 35K, 14K and 5K options. Courses are marked with reflective ribbons and headlamps are required; the 35K has a 5 hour 30 minute overall cutoff.