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
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.
Cross-country meet at Radke Martinez Regional Shoreline on October 24, 2026, with three approximately 4.1 mile races over grass, dirt, and path surfaces.
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
Trail running event in Walnut Creek on April 3, 2027 offering 50K, Half Marathon, 10K and 5K with a portion of entry fees benefiting Save Mount Diablo.
Trail races at Jack London State Historic Park on April 17, 2027, offering a half marathon, 5.5 mile and 5K across vineyard views and Sonoma Mountain slopes.
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.