Trail Running calendar near Folsom 2026-2027

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 races along the Western States Trail near Auburn, California on September 27, 2026. Distances include a half marathon, 12K and 5K with electronic chip timing and finisher medals and t shirts.

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..

A three day all inclusive trail running festival at Zephyr Point, Nevada, on Tahoe area trails including the Tahoe Rim Trail and Pacific Crest Trail. Each day has long and short route options and packages include lodging, meals and recovery..

Yuba Gold is a self guided 50K point to point in Nevada City, CA that runners may complete any day during October 2026. The original South Yuba Campground to Bear Valley course is run continuously and results are self reported.

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.

Kokanee Trail Runs in South Lake Tahoe on October 4, 2026 offers a half marathon, 10K, 5K and a noncompetitive half mile for children, scenic lake and mountain courses, sustainable event shirts, and local charity support.

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 from Mitchell Canyon to Mount Diablo summit with about 4,000 feet of ascent and descent. Entry includes shuttle service, a post race raffle entry, a finisher item, and a five hour cutoff.

Trail races around San Pablo and Briones Reservoirs on October 10, 2026, with 5K, 10K, half marathon and 35K options. The course features single-track and fire roads, aid stations with varied supplies, and awards for finishers.

Fatass style trail races of roughly 25 and 50 miles near Foresthill, CA, featuring off-trail route finding, significant elevation gain, limited to 50 entrants, and a shared drop bag location passed twice.

Trail races in Nevada City on October 11, 2026 feature a half marathon, 10K and 5K across mixed terrain with views along the Tribute Trail and Deer Creek. The half marathon crosses a historic swinging bridge and includes multiple aid statio..

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.

Trail running in Cool, California with 5k, 10k and half marathon options on Sierra Foothills trails. Proceeds support Georgetown Divide Ready by 21 and a Camp Taylor scholarship; family packages, childcare, and a post-race breakfast are inc..

Run through the historic site of the 1848 gold discovery in California. This event features multiple trail distances from a 5K to a Half Marathon on scenic singletrack paths along the American River.

A trail running event at Mount Diablo in Walnut Creek on October 17, 2026 offering 30K, Half Marathon, 10K and 5K courses on hilly trails where mud and creek crossings are possible.

A 5k cross country race run in two loops around Willow Hill Reservoir next to Folsom High School, part of the Pacific Association USATF Cross Country Grand Prix, with a $75 bonus for breaking an age group record.

A themed charity run and community festival on October 18, 2026 in Downtown Roseville, CA, supporting the bleeding disorders community. The day includes a timed 5K, a one mile walk, festival food, carnival games, and a remembrance ceremony.