Trail Running Calendar California 2025-2026

Enjoy rolling trails and views at the 4 Mile Hill Challenge in Debs Park, part of the Aztlan Wellness Series with a green earth celebration and a pet friendly Run4Paws division. Kids can tackle the 2K Hill Challenge for family fun.

Tierra Redonda Mountain Trail Run : November 14-16, 2025 The Tierra Redonda Mountain Trail Run takes place at Smith Ranch in Bradley, California. The event offers multiple race formats over the weekend: 48 hour, 24 hour, 20 km, 10 km, and 5..

Take on scenic, technical trails at Falcon Crest in El Dorado Hills on November 15, 2025, with distances from 5K to a full trail marathon. Rolling hills, creek crossings, and commemorative medals make this a must for trail lovers.

Take on scenic trails at Finegold Creek Preserve in the Wascally Wabbit Trail Race, offering 7k and 10k run or walk options on November 15. Enjoy creekside views and support Kids Kasa Foster Care and the Sierra Foothill Conservancy.

Celebrate the 10th annual Chino Hills Trail Run Series Fall at Chino Hills State Park with challenging 30K and 50K trail routes that support the Discovery Center. Scenic single track, aid stations, and community spirit await.

The Ripon Turkey Trail Run is a community-focused running event held in Ripon, California, at Mavis Stouffer Park along the Stanislaus River Trail. Scheduled for November 15, 2025, the race offers three distance options: 5K, 10K, and a half..

Join the 29th annual Patagonia Salmon Run 5K in Ventura on November 16, 2025, a lively community race supporting South Coast Habitat Restoration. This zero waste event celebrates local conservation with scenic coastal streets and post race..

Darrington Single Track Trail Challenge : Nov 22, 2025 The Darrington Single Track Trail Challenge is a trail running event in the Pilot Hill, California area on November 22, 2025. The event offers multiple distance options: 36 Miler 18 Mi..

Test your endurance at The Captain’s Runaround in Riverbank on November 22, 2025, a timed loop race where you log as many miles as possible. Pick 8, 6, 4 or the new 2 hour sessions on a just under one mile loop at Jacob Myers Community Park..

The Golden Gate Trail Classic will take place in San Francisco from Saturday 22 November 2025 to Sunday 23 November 2025. You can run between 15 and 50 miles.

Trip to: The Red Tail Roost Agua Dulce loop Trail is a 5-mile moderate trail run in the Cleveland National Forest near Mt. Laguna, California. The course winds through peaceful, wooded terrain that may be icy or snowy in late fall, so rider..

Join the Wild Turkey on Thanksgiving at Beals Point to support Folsom's Hope with scenic 5 km and 10 km trail races plus a free kids 1 km fun run. Strollers and leashed dogs welcome and enjoy post race refreshments and music.

Celebrate Thanksgiving at the Zoom Turkey Trot in San Jose at Hellyer Park with a USATF certified half, 10K, 5K and kids runs, plus t shirts and finisher medals. Flat, fast courses and stocked aid stations welcome all abilities.

Event The Boundiful Endurance Runs is scheduled for November 29, 2025, at Washburn Ranch in Hemet, CA. The event offers multiple race formats and timed-duration events. 100m Relay Event 24hrs 12hrs 6hrs 3hrs Course and support The course..

Quad Dipsea : November 29, 2025 The Quad Dipsea is a trail ultramarathon held in Mill Valley, California. It is the 42nd running and covers 28.4 miles with about 9,000 feet of total ascent. The course is an out-and-back from Old Mill Park t..

Run Quarry Turkey at Quarry Lakes Regional Park in Fremont for a festive trail race featuring a half marathon, 10K, 5K and a kids Little Turkeys race. Mostly flat trails welcome walkers and runners in costumes, and donations support the Ala..

Tackle rugged singletrack and scenic trails at the 9th annual Black Mountain Turkey Burner Trail Race, an ERS Championship qualifier with a limited 300 runner field. Pick a half marathon, 10K, 5K or kids dash around the community park.

Run scenic trails around Goleta, CA on December 5 and 6, 2025 with distances from 12K to 100 mile for a true endurance challenge. Finishers earn special awards like 100 mile belt buckles and gather for a Sunday awards banquet.

Run Krampus Cross Country in San Francisco live on Dec 7 or virtually Dec 5 to 8 with 5K 10K and the Naughty Nine Miler. All entrants get a wooden woodallion a Krampus tee and a beer sampler stein plus a brewfest on Dec 5.

Experience scenic single track trails and rolling climbs at China Camp and Harry Barbier Memorial Park in San Rafael on December 6, 2025. Choose a 30K, half marathon, or 10K in a friendly cupless event with on course aid.