Trail Running Calendar California 2026-2027

Race through the historic landscape of Black Mountain, an ancient volcano in San Diego. The event offers 50K, 25K, and half marathon distances on technical single-track and jeep trails featuring significant elevation gain.

This trail scramble explores the Susan River Canyon on a loop combining the Bizz Johnson and Southside trails. Choose from three scenic distances, all finishing with a riverside celebration. Remember your own water bottle, as it's a cup-les..

Tough Topanga is a classic trail run in Topanga State Park, featuring a rugged 10k and a new 15k course. With a $2,500 prize purse and a festive finish line, it's the first race in the Bulldog Challenge Series. A non-timed hike and a kids'..

Headwaters Trail Runs Headwaters Trail Runs are trail running events held in the Klamath Mountains west of Mount Shasta City, California. The events include three distances: a 52K, a 34K, and a 10K trail run. The runs are named after the he..

Explore the golden summer trails of Fort Ord National Monument. This trail run offers four distances across rolling hills and diverse terrain. It's a cupless event with aid stations stocked with fuel and drink.

Celebrate the legacy of Title IX in Yorba Linda. Run or walk a moderate 5K on the El Cajon Trail with the family, strollers, and dogs. After the race, visit the vendor fair and explore awards for various age groups.

A 5k trail run at Gypsum Canyon Wilderness on June 24, 2026 over fire roads and single track with about 350 ft of elevation gain. One aid station at mile 2.2 and a cupless race policy.

Live and virtual 5K, 10K and half marathon at Lake Chabot Regional Park in Castro Valley, June 26 to 29, 2026. Courses mix paved and trail sections with aid stations; live participants receive a shirt, handcrafted woodallion and beer sample..

The Western States 100 is an epic ultramarathon on the historic Western States Trail from Olympic Valley to Auburn. It features over 15,000 feet of climbing through remote Sierra terrain. Entry is by a highly selective lottery.

Experience a weekend of community and trail running in the Angeles National Forest. Challenge yourself to complete multiple laps of a scenic 4.16 mile loop over six hours while enjoying a supported camping experience.

The Burton Creek Trail Run offers 6K, 12K, and half marathon distances on beautiful trails through Burton Creek State Park near Lake Tahoe. Participants receive a t-shirt, medal, photos, and for half marathon runners, a BBQ. Discounts are a..

Take on the Big Chief 50K, a scenic trail run from Tahoe City on single track and fire roads with big climbs and Lake Tahoe views. Aid stations, medical support and a finisher medal make for a rewarding mountain day.

Experience the beauty of the Burney Basin on the Historic Great Shasta Rail Trail. This event features 5K and 10K runs along with a unique burro racing competition during a weekend of local festivities.

Celebrate July 4th with a scenic 5K or 10K trail run at North Tahoe Regional Park. The race finishes at the sandy Tahoe Vista Recreation Area Beach for post-run festivities. Enjoy a costume contest, awards, and included event perks.

The 14th Bay 2 Bankers offers a unique team adventure through San Francisco. Navigate a 5K or 10K course from Ghirardelli Square using a custom map. Teams of up to five can enjoy post-run refreshments.

Trail races in Santa Cruz through ancient coastal redwoods and varied terrain, offering distances from a free kids quarter mile up to a 50K. Marked courses, fully stocked aid stations every 6 to 7 miles, and a cupless policy.

The Mt. Baldy 5000 is a tough, scenic 5K uphill run at Mt. Baldy Resort. After finishing at the Top of the Notch, runners can enjoy a BBQ dinner and drinks before a chairlift ride back down. It's billed as a unique summer mountain party.

This summer series offers Tuesday evening fun runs in Redding, CA. Each week features a different local park or route with two distance options. A punch card registration includes a special 20th anniversary T-shirt.

Into the Wild is a 5k trail run at Saddleback Wilderness on July 15, 2026, over fire roads and single track with 300 ft of elevation gain. Entry is limited to 150 runners and there is no race day registration.

The Harding Hustle offers 50K, 30K, and 15K trail races on the Harding Truck Trail in Orange County's Santa Ana Mountains. This cupless event features challenging climbs, descents, and is known for its heat. Parking is not allowed at the st..