Trail Running calendar near North Fork American River 2026-2027

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.

Trail running event in Las Trampas Wilderness offering Half Marathon, 10K and 5K; the half marathon is noted as non-flat and features trails and views.

Black Oak Challenge in Tuolumne on September 19, 2026 features a 5K with on-course physical and mental challenges and a 1K family run with water obstacles. Finisher medals are awarded to 5K finishers.

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 race in Auburn on September 27, 2026 featuring a half marathon plus 12K and 5K with much of the half on the Western States Trail.

A student-run trail 5K in Zephyr Cove with an 800 meter kids run, creek and log crossings, medals, popsicles for kids, and student-designed shirts sold separately.

The Lake Tahoe Trail Festival will take place in Zephyr Cove on Monday 28 September 2026. You can run between 15 and 100 kilometers.

Yuba Gold is a self guided *50K* point to point in Nevada City, CA held October 1 to 31, 2026. Runners complete the original South Yuba Campground to Bear Valley course, submit an activity link for ranking, and receive a finisher award.

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 on October 4, 2026 in South Lake Tahoe features a 1/2 Marathon, 10K, 5K and a half mile Tadpole Trot with scenic lake and mountain courses, aid stations, 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 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.

A fatass trail run in Foresthill, CA offering 25 mile and 50 mile courses along the North Fork of the American River. Entry is free and field size is limited to 50 runners, with off trail sections and significant elevation gain.

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.

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..