Trail Running calendar near Vineyards - Avalon 2025-2026

Run Spartan Trail at Toro Park in Salinas on May 31, where rolling golden hills and smooth trails set the stage for marathon, half and 10K trail races. Enjoy scenic singletrack, a lively community vibe and team and service member discounts.

Run the 42nd annual Lake Chabot Trail Challenge on June 7, 2026 in Castro Valley, with a scenic hilly half marathon or a 5K featuring ridge line views of Mt Diablo and the Bay. Chip timed races, finisher medals, and on site packet pick up.

Bay Area 100 is a 100 mile point to point ultramarathon from UC Berkeley to Skyline High in Oakland, tracing East Bay ridgelines, redwood forest and lake shore. Limited to 150 runners with a 33 hour cutoff for a true endurance challenge.

On July 11 join the San Lorenzo River Trail Run in Santa Cruz and run through coastal redwoods and scenic river crossings. Distances range from 10K to 50K, pre registered runners get T shirts and all finishers earn a custom medal.

Tackle scenic East Bay trails in the historic Skyline 50K or choose a half marathon around Lake Chabot Marina in Castro Valley. Finish with a plant based BBQ and beer while families enjoy the festive atmosphere.

Experience classic East Bay singletrack at Dick Collins Firetrails in Castro Valley, with 100k, 50 mile, marathon and 30k options across scenic ridges and regional parkland. Friendly aid stations, stunning views and a lively finish atmosphe..

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.