Trail Running Calendar California 2026-2027

Tahoe Trail in Truckee, California (July 17 to 19, 2026) offers mountain bike and trail running races across multiple distances, an Expo at Northstar California, and kids races. The 100K MTB and 50K run are Leadville Race Series qualifiers.

Trail races of 50K, 30K and 15K on the Harding Truck Trail in the Cleveland National Forest, with aid stations, mandatory shuttle parking, no pacers, finish drop bags only, and a cupless policy in hot July conditions.

A supported trail race in Point Mugu State Park offering 25k and 10k routes with coastal mountain views, chip timing, locally made finisher medals, a post race festival with breakfast and a beer garden.

Hit Griffith Park for Hot to Trot on July 18, 2026, and choose a distance from 5k to half marathon on scenic dirt trails. Enjoy aid stations, a finisher medal, photos and postrace snacks as you tackle shared trails under the LA sun.

Trail races on Mt. Tam near Stinson Beach offering 10K, half marathon, and 30K courses with steep climbs, technical single-track, cupless aid stations, chip timing, and a 300-runner capacity.

A mountain trail race in Downieville, California offering 25K, 50K, and 100K routes across high-country singletrack and river canyons. The 100K requires mandatory safety gear and includes multiple aid stations and crew access.

A night trail race in Anza, California on July 25, 2026 with looped courses of 50k, 30k, half marathon and 9 miles through single track and dirt roads under the full moon.

A scenic out and back run near McCloud, CA on July 25, 2026 offering 10K, 30K and 50K distances on a relatively flat rail trail with stocked aid stations, a shirt, post-race meal and a finisher medal; proceeds support the trail.

Trail races near Auburn, California on July 26, 2026, with two distances over single-track, canal sections, dirt roads and hills. Includes a technical shirt, a new finisher medal for 2026, post-race food and beer for 21 plus.

A 135 miles nonstop invitational ultramarathon from Death Valley Badwater Basin to Whitney Portal, covering three mountain ranges with about 14,600 feet of ascent and a 45 hour time limit. Up to 100 international athletes compete.

Join the SoCal Summer evening 6K or 12K at Lower Arroyo Park in Pasadena on July 31 2026 and celebrate after with tacos and drinks. Scenic park routes and friendly vibes make this a perfect summer night run.

A mountain 5K, 10K and half marathon around Green Valley Lake, CA, featuring mixed paved and dirt surfaces, multiple aid stations, chip timing, race awards, and proceeds benefiting The Children’s Forest.

Looped trail races at Thomas F. Riley Wilderness Park offering 5k through 30k and a 6 hour event on August 1, 2026; registration opens February 1.

Trail races at Rodeo Beach in the Marin Headlands offering 8K, half marathon, 30K and 50K on coastal singletrack and fire roads; chip timed, cupless, capacity 350.

A five segment trail marathon near Truckee, California that loops through Royal Gorge land with a single central aid station passed four times. Relay options are offered for two or five runners and parking is at Soda Springs Ski Resort.

A long running 50K and half marathon around Lake Chabot Marina and East Bay parks each August, with community staffed aid stations, downloadable course guides, and post race plant based food.

Run the Ely Mountain Trail Race at scenic Balsam Forebay near Shaver Lake, CA, with 14K or 8K options featuring big climbs and a rugged granite mile on the 14K. Field capped at 250, with aid stations, finisher medals, shirts and post race s..

Take on the Thunder Mountain 50K, a High Sierra trail challenge near Lake Tahoe at 7,400 feet with roughly 7,700 feet of climbing and stunning alpine scenery. Three scenic loops, limited to 100 runners, and a commemorative medal for all fin..

Trail races at Sprig Lake Day Use Area in Gilroy on August 8, 2026 feature 5K, 10K and half marathon routes with significant elevation gain; proceeds fund local scholarships to a national trail running camp.

SAR Wild Run on August 9, 2026 at Shaver Lake offers trail distances, a family hike and a virtual option to support Fresno County Search and Rescue, with chip timing, event shirts, custom medallions and a post-event BBQ.