Trail Running Calendar California 2026-2027

A multi-distance trail event at Malibu Creek State Park featuring 25k, 50k and a three-loop 75k, with fully stocked aid stations, chip timing, finisher medals and post-race food and beverage options.

Run among towering redwoods in Oakland on August 15 at the Redwood Summer Trail Run, with distances from a 5 mile to an epic 50K plus a free kids dash. Expect stocked aid stations, finish medals and classic trail vibes.

A single loop 50K ultramarathon in Muir Beach, California on Saturday, August 15, 2026. The course uses notable Marin trails, includes about 6500 feet of elevation gain, and features coastal and Bay Area views.

Trail races of 30K, half marathon, and 10K run through Henry Cowell Redwoods State Park with redwood forest, river crossings, ocean breezes, and aid stations every 5 to 6 miles.

A 5k trail run at Red Rock Wilderness near Silverado, CA featuring fire roads and single track, 300 feet of climbing, one aid station, a cupless policy, and no pets allowed.

Run around scenic Tanri Lake in Miramonte at 6,000 feet, choosing from a relay, a 10 hour individual timed challenge, or a 10K loop. Registration opens Jan 8, 2026 and select entries include a Tanri hat and a pre race dinner on August 28.

A free community festival by UltraSignup in Los Angeles featuring a group trail run with 5K and 10K options, an expo with vendors, food, and a raffle. The event is held at A Snail's Pace Running Shop in Chino Hills.

Trail run in Huddart Park near Woodside, California on August 30, 2026 offering distances from 8K to 50K plus a free kids 50 yard dash. Courses run on single track and dirt roads with aid stations every 5 to 9 miles.

Trail races of 50K and 15K through Noble Canyon in Cleveland National Forest near Pine Valley, California. Technical mountain terrain with rocky climbs, ridgelines, granite slopes, multiple aid stations, and volunteer support.

Join the new Mammoth Bar Trail Runs on Sept 6, 2026 in Auburn CA with Half Marathon and 10K on single track and double track trails. Expect steep climbs, thrilling descents and sweeping views of the American River Canyon.

Diablo Trail Run on September 6, 2026 in Clayton CA offers distances from a 4 mile Mitchell Canyon course to a 50K, plus a free kids 50 yard dash for age six and younger. Courses use dirt roads and single track with aid stations every 3 to..

Run a scenic mixed terrain 5K, 10K or Kids Mile over rolling hills at Thousand Hills Ranch in Pismo Beach. Stay for a family friendly festival with live music, local vendors, and fundraising for CCAF and 17 Strong.

A mountain trail race in the Angeles National Forest that climbs from about 6,000 feet to the 10,064 foot summit over roughly seven miles. The event includes aid stations, a race shirt, professional timing and awards.

Run around stunning Emerald Bay in Lake Tahoe with a point to point 7 mile trail through granite steps and pine forests. Finish with a medal, event shirt, free race photo and shuttle back to the start for easy logistics.

A weekend running festival set in Mendocino Woodlands Park with 12 hour and 6 hour timed events plus 10K and half marathon on a six mile redwood loop. Weekend camping, food passes, live music, and camp facilities are included.

Run into sunset at Griffith Park with the Los Angeles Sunset Trail Relay 5K and Kid Run. Team up for a 10 mile relay, race a solo 5K or bring the kids, and enjoy scenic trails, live music, food trucks and finisher medals.

Take on the Pincushion Hill Climb in Friant, CA, a chip timed one mile ascent to top of Pincushion Mountain, plus a Mountain Goat challenge to repeat climbs for extra glory. Expect tough terrain, custom finisher awards and shirts for all.

Trail races on September 12, 2026 in Tilden Regional Park and Wildcat Canyon offering 50K, 35K, half marathon and 10K courses with marked trails, aid stations every five to seven miles, and a cupless format requiring reusable cups or bottle..

A two day trail running and camp event in Bradley CA on September 18 and 19, 2026. It features 48 hour and 24 hour timed formats plus 20 km and 10 km trail races.

Trail runs at Granite Beach, Folsom Lake SRA offering a 10 mile course and a 5K on shoreline and single-track trails, with aid stations, a finisher beer glass, and a postrace hot meal.