Fairfield
Trail Running Calendar near Fairfield 2026-2027
Explore the top trail runs near Fairfield for 2026-2027! We've gathered 21 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
September 2026
Monthly Richmond meetups offering a community hike plus an optional trail-run option, organized by FIERCE Advocates with Moving Forward and Richmond Run Club.
A September 12, 2026 trail event in Berkeley featuring 10K, half, 35K and 50K courses through Tilden and Wildcat Canyon with chip timing, regular aid stations and a cupless aid policy.
Trail races at China Camp State Park offering 5K, 10K and a stout half marathon with participant swag included and limited parking.
An annual stadium stair climb and memorial walk at UC Davis Health Stadium honoring 9/11 first responders, with proceeds supporting the UC Davis Police Emergency Scholarship.
A community ultramarathon and hike at Skyline Wilderness Park in Napa, CA, featuring a 3.3-mile loop repeated up to ten times in an hourly format to raise funds for the Pheo Para Alliance.
October 2026
A weekend of triathlon, relay, a trail half marathon and a kids fun event at McNear’s Beach Park in San Rafael, with a combined SGRAIL Challenge across both days.
A 12.4 mile loop from Mitchell Canyon to the Mount Diablo summit and back in Clayton, CA, featuring about 4,000 feet of ascent and a five hour cutoff.
Trail races of 5K, 10K, half marathon and 35K around San Pablo Reservoir on EBMUD trails, with chip timing, stocked aid stations, a cupless policy, and a 300-runner capacity.
Trail races in Walnut Creek on October 17, 2026 with distances from 5K to 30K; walkers welcome and courses may include mud and creek crossings.
Cross-country meet at Radke Martinez Regional Shoreline on Oct 24, 2026 featuring three 4.1 mile races over grass, dirt, and path; online registration closes Oct 23.
November 2026
April 2027
Trail event in Walnut Creek on April 3, 2027 offering 50K, half marathon, 10K, 5K and a remote option, with part of fees supporting Save Mount Diablo.
May 2027
Timed half marathon through Napa vineyards from Quintessa Winery to Yountville with winery aid stations, a Finish Line Wine Village, shuttle service, and a finisher medal.
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.