Fairfield
Trail Running Calendar near Fairfield 2026-2027
Explore the top trail runs near Fairfield for 2026-2027! We've gathered 20 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
September 2026
Experience the scenic trails of Tilden Regional Park with races ranging from 10K to 50K offering views of the Golden Gate Bridge and the Bay.
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 three day weekend at McNear’s Beach Park combining an Olympic distance triathlon, a trail half marathon, a kids fun event, and a combined challenge.
Experience a 12.4 mile loop to the summit of Mount Diablo featuring 4,000 feet of elevation gain and a steep descent through scenic California trails.
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
A 40th annual 6.45 mile trail race in Annadel State Park with staggered age and gender starts, awards for the top 13 finishers, and limited entry.
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.
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.
June 2027
Experience a 100 mile point to point journey through the East Bay with 18,000 feet of vertical gain and breathtaking views from the Golden Gate to Mt. Diablo.