Trail Running calendar near Livermore 2026-2027

Mud Factor Sacramento is a 5K mud and obstacle run at the 300 acre Mahon Ranch in Elk Grove on May 16, 2027, with adult and Kidz family waves, advertised entry fees from $27, and a $10 cash spectator fee for festival access.

Run for Amma in Los Gatos on May 22, 2027 offers trail races of 50K, 30K and 10K with significant elevation gain; all registration proceeds go to a UCSF cancer research lab.

Obstacle course races at Toro Park near Salinas include a Sprint (5 km), Super (10 km) and kids events across wooded trails and rolling hills, plus spectator options and team registration.

Beer City Half San Jose on May 29, 2027 at Almaden Lake Park pairs trail and park running with a beer festival. Events include a half marathon, 10k, 5k, a 1 mile Beer Stroll, the Beat the Beast beer mile, and beer tastings.

Trail races of 10K, half marathon, and marathon at Toro Park, Salinas on May 30, 2027, over rocky trails and dirt roads with summer temperatures around 16ºC and an average altitude of 520 meters.

A point-to-point 100-mile race on June 12, 2027, from California Memorial Stadium to Skyline High School, covering about 18,000 ft of vertical gain with a 33-hour time limit and varied terrain through ridgelines, redwoods, and lake shore.