Trail Running calendar near Waterford 2026-2027

An annual August trail event from Lake Chabot Marina offering a 50 km and a half marathon with volunteer aid stations and a plant-based finish festival.

High Sierra trail event near Kit Carson, CA offering a 50K plus shorter looped races, 7,700 ft of climbing, marked courses and aid stations.

A trail running event on Aug. 8, 2026 in Gilroy, California through redwood groves and peak viewpoints. Distances include a 5K, 10K and half marathon with significant elevation gain, and proceeds support youth scholarships.

Bear Creek on August 8, 2026 offers 5K, 10K and a 13.32-mile half marathon in the Briones Regional Park area, with a virtual Remote Runner option. Entry windows and fees are listed for each race.

50th annual Pinecrest Run in Pinecrest, CA: five-mile and one-mile courses along Pinecrest Lake, held as a fundraiser for Pinecrest Expedition Academy.

Trail races on hilly mixed dirt and single track at Almaden Quicksilver Park with distances from 5K to 50K, aid stations, drop bag service for longer races, and mandatory course markings and cutoffs.

Multi-distance trail event at Sly Park Recreation Area in Pollock Pines, CA on August 22, 2026, with marked courses, aid stations, and commemorative medals.

A two-day Spartan obstacle race at Mahon Ranch near Sacramento featuring Sprint 5 km, Super 10 km, kids races, team entries, volunteer options and spectator access.

The inaugural Apple City 5k at Pinto Lake County Park in Watsonville on 30 August 2026 offers a 5k on gentle, scenic trails and a kids 1k around the soccer fields. Half the event funds support the Pajaro Valley Education Foundation.

Experience the natural scenery of Mount Diablo State Park through a variety of trail races. Runners can select distances ranging from 4 miles to a 50K with spectacular views of the San Francisco Bay Area.

A chip-timed one-mile uphill trail race to the top of Pincushion Mountain in Friant, CA, with awards and finisher items. A Mountain Goat edition allows multiple timed ascents within a four-hour window and includes special awards.

A trail race at Stevens Creek County Park in Cupertino offering a Half Marathon, 11K, and a charity 2.5-mile Lollipop Loop with aid stations and post-race barbecue.

Run through Bishop Ranch and San Ramon in this diverse racing event. Choose between a half marathon, 10k, 5k, or beer mile before enjoying unlimited tastings with your finisher medal.

A trail running event at Calero County Park offering distances from a kids run to a 50K across single-track and dirt roads, with named aid stations, drop bag support, bib color assignments, and time limits for longer races.

Trail races around Bass Lake, California offering 50 mile, 50 km and half marathon routes through the Sierra National Forest with sequoias, granite slabs, river crossings, stocked aid stations and a shuttle to the start.

Trail running event in Las Trampas Wilderness offering Half Marathon, 10K and 5K; the half marathon is noted as non-flat and features trails and views.

Inaugural Black Oak Challenge in Tuolumne features a 5K with physical and mental obstacles plus a 1 mile family run with water challenges.

Rebels XC Challenge is an in-person cross-country meet in Carmichael CA on September 19 2026 featuring Women's, Masters Men's and Open Men's races with a listed fee of USD 30.

Trail event in Castro Valley featuring a 100k, 50 mile, and marathon with UTMB index status and firm time limits due to park permits.

Trail running in shaded redwood forest at Sanborn County Park on September 27 2026, with 10K, half marathon and 50K options; steep singletrack, shuttle parking, chip timing and specific mandatory gear for the 50K.