Trail Running Calendar California 2026-2027

Trail running at Corriganville Park in Simi Valley with 50K, 30K and 15K routes through Rocky Peak, Las Lljas and Tapo Canyon. The event features varied terrain, aid stations, and a portion of proceeds benefiting the Challenged Athletes Fou..

Event Overview The 2026 Big Sur Trail Marathon, Half Marathon & 5 Mile is the 36th annual running of this event. It takes place at Andrew Molera State Park in Big Sur, California. Distances The event offers three distances: Marathon Ha..

Explore the shaded redwood groves and challenging, flowy singletrack of Sanborn County Park. This trail event on September 27, 2026, offers 10k, half marathon, and 50k distances through the Santa Cruz Mountains.

A seaside themed run in Long Beach offering 5K, 10K, half marathon and family distances with chip timing, free race photos, finish line pizza and a costume contest.

The Mammoth is a multi-day footrace through the stunning Eastern Sierra, featuring a loop course with alpine lakes, volcanic terrain, and mountain summits. It starts and finishes in Mammoth Lakes, California. Prize money is offered for top..

The Signal Peak 24M trail run navigates the terrain near Emigrant Gap with about 3,300 feet of climb. Aid stations provide fuel along the cupless course. Finishers earn a medal and a meal.

Traverse the San Gabriel mountains on this classic point-to-point 100-mile course. As one of the original five U.S. 100-milers, it features rugged climbs and a historic route. Finishers earn a custom engraved plaque and a distinctive belt b..

A 100 kilometer trail race in Cuyamaca Rancho State Park near Julian California. The course uses three loops from Camp Cuyamaca and includes trails that reach Cuyamaca Peak and sections along the Pacific Crest Trail.

Trail running event in Auburn, California on October 3, 2026 offering half marathon, 12K and 5K distances. The half course follows the Western States Trail and crosses No Hands Bridge, with start and finish at Overlook Park.

Run by the Sea returns for its tenth year at Wilder Ranch State Park. This coastal run on flat dirt trails offers a half marathon, a 12K, and a 4K run/walk. The event supports local youth and trail stewardship programs.

Kokanee Trail Runs in South Lake Tahoe on October 4, 2026 offers a half marathon, 10K, 5K and a non competitive half mile Tadpole Trot for children, with scenic courses near Fallen Leaf Lake and aid stations stocked with water and Tailwind.

Run a scenic 5K on the shaded, groomed horse trails of Palos Verdes Peninsula. The event supports Strides in Recovery, a nonprofit helping people in addiction treatment through running. Participants receive a medal, t-shirt, and can enjoy a..

Trail races in Auburn, California in October 2026 run along the American River Canyon with 50K, half marathon, and 5 mile options. Postrace items include a commemorative cider glass, a Ponderosa Cider pour for those 21 plus, and age group a..

Run the 39th Ruth Anderson Memorial Endurance Run on October 10, 2026 in San Francisco. Choose 100 km, 50 miles, or 50 km on a scenic paved loop around Lake Merced with chip timing and certified 50K and 50 mile courses.

A set of trail races near Silverado, CA offering 50-mile, 50K and 30K courses on remote, technical 4x4 and single-track trails with significant elevation gain, aid stations, mandatory self-sufficiency, and cupless support.

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.

Explore Nevada City's trails at the Champion Mine Trail Race. Choose between a scenic half marathon crossing a historic swinging bridge or a 5K run/walk. The event features aid stations, varied terrain, and finishes at the historic Miners F..

Point-to-point trail races on the Bizz Johnson Trail near Susanville, CA offering 50K, marathon, Express Half and Express 10K on a USATF certified, mostly downhill course with river canyon, bridges and railroad tunnels.

A multi format running event on the Cahuilla Indian Reservation in Anza, California, featuring loop ultraruns, fixed time races, a half marathon and a Tribal Member 5k. Funds raised support the tribe youth and family programs; 100 mile fini..

A trail event in Cool, California on October 17, 2026 offering 5k, 10k and a trail half marathon. Proceeds support Black Oak Mines Unified School District youth and a Camp Taylor scholarship, and the event includes family options.