Trail Running calendar near Tracy 2025-2026

Join a community 5K run or walk along the scenic bay trail at Seal Point Park, capped off with a free Wellness Fair featuring local health and wellness vendors. Race registration includes a T shirt and supports mental and community wellness..

Run the Monterey Trail Experience at Toro Park in Salinas on May 31, 2026 through rolling golden hills, oak shaded pastures and smooth trail arroyos. Choose 10K, 21K or marathon distances and enjoy a Spartan weekend of racing and obstacles.

Run scenic trails at Lake Chabot on June 7, 2026 in a chip timed half marathon or 5K with ridge top views of Mt Diablo and the Bay. Presented by Castro Valley Sports Foundation as a fundraiser with finisher medals.

Run the Bay Area 100 on June 13 2026 a scenic 100 mile point to point ultramarathon from UC Berkeley to Skyline HS in Oakland. Expect 18,000 feet of climbing across ridgelines, redwood forest and lake shore trails; field limited to 150.

Enjoy coastal redwoods and river crossings in Santa Cruz at the San Lorenzo River Trail Run, with distances from 10K to 50K and a free kids run. Pre registered runners get shirts and all finishers earn custom medals.

Run Skyline 50K at Lake Chabot Marina in Castro Valley this August, a scenic loop through East Bay Regional Parks with 50K and half marathon options. Expect solid aid station support, finisher swag and a lively post race BBQ and beer.

Run the Redwood Summer Trail Run in Oakland on August 15, 2026, with distances from a kids dash to a rugged 50K through scenic Redwood Regional Park. Pre registered runners get a tee and all finishers receive a custom medal.

Run through towering redwoods on scenic single track trails at SPASM Crystal Springs Trail Run in Woodside, with distances from 8K to 50K and a kids dash. Stocked aid stations, finisher medals and shirts for early registrants.

Choose from 4 miles to 50K on scenic Diablo State Park trails with big views and big climbs. Fully stocked aid stations, cupless event so bring your own bottle, plus a free kids run.

Run the Gold Rush Growler Trail Runs on September 19, 2026 at Granite Beach for scenic shoreline and single track trails with 5K and 10 mile options. Finishers receive a commemorative beer glass and ages 21 and up can enjoy a local IPA at t..

Autumn trail festival at Lake Chabot Marina in Castro Valley offering 100k, 50 mile and marathon distances through classic East Bay parkland. Expect challenging terrain, a friendly community vibe, and generous finisher swag for all distance..

Join the 39th Ruth Anderson Memorial Endurance Run in San Francisco on October 10, 2026. Run scenic loops around Lake Merced on a certified course with 50k and 50 mile options and aid stations for a memorable autumn ultramarathon.

Join the 25th Rio 100 and 5th Rio 50K at Beals Point in Granite Bay on November 7 and 8, 2026. Scenic Folsom Lake and Johnny Cash Trail routes, strong on course support, and festive food and beer create an unforgettable endurance weekend.