Trail Running calendar near El Sobrante 2026-2027

Multiple trail distances run through Redwood Regional Park on March 20, 2027 at Chabot Space & Science Center. Routes use East Ridge, West Ridge, Stream and Bridle trails and distances were measured with a Rolatape surveyor's wheel.

An hourly backyard ultra on Dry Creek Parkway near Sacramento where runners repeat a 4.16 mile loop until only one completes the most yards. Each loop must be finished within the hour and the last runner to complete a loop wins.

A multi distance running event at Quarry Lakes Regional Recreation Area in Fremont, CA on March 27, 2027. The mostly flat course follows part of the historic Western Pacific Trail and includes a remote participation option.

A spring trail race at Pueblo Day Use Area in Santa Teresa County Park on April 5, 2025 offering 5K, 10K, 10 Mile and a half marathon across marked, hilly trails with aid stations and a four hour half marathon limit.

A weekend obstacle course event at Stanislaus County Parks offering multiple races from a kids run to a 50 km ultra, with technical trail sections and signature obstacles across grasslands and hills.

Trail races at Mount Diablo on April 3, 2027 range from a 50K to a 5K, with tiered registration fees, a remote runner option, and a BBQ ticket. A portion of entry fees supports Save Mount Diablo's open space preservation.

A trail event at Skyline Ridge Open Space Preserve offering distances from a 50 yard kids dash to a 50K race. Routes run largely on the Bay Area Ridge Trail with ocean and Santa Cruz Mountains views.

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.