Fairfield
Trail Running Calendar near Fairfield 2026-2027
Explore the top trail runs near Fairfield for 2026-2027! We've gathered 22 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.
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 Olympic-distance triathlon, an Olympic relay, a trail half marathon and a kids fun event at McNear’s Beach Park in San Rafael.
A 12.4 mile loop from Mitchell Canyon to the Mount Diablo summit and back, featuring about 4,000 feet of ascent and descent and a 5 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.
A cross-country meet at Radke Martinez Regional Shoreline on October 24, 2026, featuring three races over a 4.1 mile course with grass, dirt, and path terrain.
November 2026
April 2027
A trail event at 1700 Castle Rock Road, Walnut Creek on April 3, 2027 offering 50K, half and hiker half, 10K, 5K and a remote runner option with fundraising for Save Mount Diablo.
A trail half marathon and five mile run through Jack London State Historic Park with vineyard views and varied hillside terrain.
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.
Trail races at Skyline Wilderness Park in Napa include 10K, 21K, 30K and a 50K ultra with significant elevation, cupless aid stations, and parking included with registration.