Trail Running calendar near Calistoga 2026-2027

Trail event in Walnut Creek on April 3, 2027 offering 50K, half marathon, 10K and 5K options with part of fees supporting Save Mount Diablo.

Trail fundraiser on April 17, 2027 offering a Half Marathon, 10K and 5K with a hilly technical half and a cup free policy.

A trail event at Lake Chabot Regional Park offering distances from a 50‑yard kids dash to a 50K ultramarathon. The looped course circles the Lake Chabot reservoir and surrounding hills with measured distances.

No Foolin' Foot Race in San Carlos on April 24, 2027 offers 15K, 10K, 5K and a 1K kids trail course across Big Canyon, Eaton and Pulgas Ridge, with proceeds supporting local open space trail maintenance.

Trail running in the Stinson Beach and Muir Woods area with marathon, half marathon and 7 mile options. The event is organized by Enviro Sports and is tentatively scheduled for May 2027.

A timed half marathon through eight Napa Valley wine estates finishing in Yountville. The event includes a finish line Wine Village with live music and complimentary wine tastings.

A community trail run and hike on May 8, 2027 at the Point Arena and Stornetta Lands, co-hosted by ACORN and Pacific Community Charter School. Proceeds support the Students Protecting the Coast environmental education program.

May 15, 2027 trail races at Skyline Wilderness Park in Napa offer 10K, 21K, 30K and 50K courses with substantial elevation gain and staffed aid stations. This is a cupless event so runners must carry their own hydration.

A trail ultramarathon in Napa Valley centered at Skyline Wilderness Park, offering a solo 50 mile course and a one-loop 25 mile option. Cupless aid stations, on-course fueling, limited crew access, and drop bag support.

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.

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.

A historic 7.4 mile trail race from Mill Valley to Stinson Beach, known for steep stairs, a unique handicapping start system, and a limited field of about 1,500 runners.