Trail Running calendar near Santa Venetia 2026-2027

A multi-loop trail event in Napa that uses Skyline Wilderness Park and Suscol Headwaters. Options include an approximately 50 mile solo route and a one-loop ~25 mile course, with cupless aid stations and limited crew and pacer access.

A race day in El Sobrante with a half marathon, 10K, 5K and a hiker division through the hills of Wilcat Canyon; registration windows and fees vary by distance.

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 is a charity trail event at Skyline Ridge Open Space Preserve in Los Gatos on May 22, 2027. Distances include 50K, 30K and 10K and 100% of registration proceeds go to UCSF cancer research.