Trail Running Calendar California 2025-2026

The Dirty Secret Trail Run, taking place in Cool, California, offers an exciting experience for both novice and experienced trail runners. Participants can choose between two scenic courses: a 5.8-mile short course and a 10.3-mile long course, featuring challenging terrain with twists, turns, and ob..

The Pacific Crest Trail 50 (PCT 50) is a challenging 50-mile trail run set in the scenic Cleveland National Forest, California. Scheduled for May 10, 2025, this event is part of the SoCal Ultra Grand Prix Series. The course features an out-and-back route primarily on single-track trails, with signif..

The Sasquatch Trail Run is a family-friendly event taking place in Woodlake, California, on May 10, 2025. Participants can choose from various events, including a 5k Fun Run, a 5k Virtual Race, and a Kids Race. The scenic course runs through the Dry Creek Preserve, featuring moderate challenges such..

The Boney Mountain Trail Run is an exciting running event set in the stunning Santa Monica Mountains, starting at Rancho Sierra Vista | Satwiwa National Park. Participants can choose between a challenging half-marathon course featuring creek crossings, single-track climbs, and breathtaking ocean vie..

The Born to Run Ultra Marathon Extravaganza is a unique trail running event taking place from May 14 to 18, 2025, at a private ranch in Santa Barbara, California. This multi-day event offers various race options, including 4-day, 3-day, and 100-mile challenges, along with shorter distances of 30, 20..

The Born to Adapt - Los Olivos will take place in Los Olivos on Saturday 17 May 2025. You can run between 10 and 100 miles.

The Placer Trail Running Festival, scheduled for May 17, 2025, at Granite Beach in Granite Bay, California, offers a variety of trail running events suitable for all levels. Participants can choose from distances of 25K, 10K, 5K, and a 5K Canicross, all set against the scenic backdrop of Folsom Lake..

The Corral Canyon Trail Scramble is an exciting running event taking place at Corral Canyon Campground in the Cleveland National Forest. Scheduled for May 17, 2025, participants can choose from four challenging courses: a 5-mile scramble, a 9-mile trail, a 14-mile option, and a 50K route. Each cours..

The Bishop High Sierra Ultras is a challenging running event taking place in the scenic foothills of the Eastern Sierra Nevada, specifically at the Millpond Recreation Area in Bishop, CA. Scheduled for May 17, 2025, the event features multiple race distances, including a 100K, 50 Miler, 55K, 20M Fun..

Trailquake is an exciting running event taking place in Saratoga, California, featuring a half marathon, 10K, and 5K races. Set against the stunning backdrop of redwoods and pines, participants can enjoy beautiful trails while engaging in a challenging yet rewarding experience. The event welcomes ru..

The Proctor Valley Monster Endurance Run is a challenging 60-kilometer race set in the rugged terrain of Southern California. Participants will face a grueling course featuring 11,000 feet of elevation gain and 10,000 feet of descent, designed to test their endurance and mental fortitude. The event..

The Napa Wilderness Trail Runs, organized by Bay Trailrunners, takes place at Skyline Wilderness Park in Napa, California. This event caters to all levels of trail runners, offering a variety of distances including a 40-mile ultra marathon, 50K, 30K, half marathon, and 10K. The courses feature sceni..

The 13 Mile Trail Race Top Down is a half marathon event taking place in San Jose, California, on May 17, 2025. The race features a scenic course that traverses two beautiful parks: Almaden Quicksilver Park and Sierra Azul Open Space Preserve. Participants will be transported to the starting point a..

The Pacifica Foothills Trail Run, taking place at San Pedro Valley Park in Pacifica, CA, offers participants a choice of three distances: 10K, Half Marathon, and 30K. Set against the stunning backdrop of the Santa Cruz Mountains, the event features scenic dirt trails that wind through coastal foothi..

Run for Amma is an annual charity running event held in Los Gatos, California, aimed at raising funds and awareness for cancer research. The event features three race distances: 50K, 30K, and 10K, with all registration proceeds benefiting the UCSF Julia Carnevale Lab. Participants can enjoy scenic t..

The O'Neill Park Trail Races, scheduled for May 17, 2025, offer a stunning running experience in the scenic O'Neill Regional Park, located in Trabuco Canyon, California. Participants can choose from various race distances, including a 50k, marathon, 30k, half marathon, and 10k, catering to runners o..

The Gorgonio View Trail Run, part of the Big Bear Trail Experience, takes place at the renowned Big Bear Mountain Resort in Southern California. This scenic 10K race offers participants the chance to traverse beautiful trails featuring smooth singletrack paths through high-altitude pine forests, alo..

The 1st Annual Natro@Noli Indian School Trail Race is set to take place at the Soboba Indian Reservation, featuring various race categories including a Marathon, Half Marathon, 5k, and a Kids 3k. This event aims to promote wellness and cultural connection within Native American communities, with a p..

The Mt. Wilson Trail Race, one of California's oldest trail races, takes place in Sierra Madre, featuring an 8.6-mile course that ascends to Orchard Camp and back. Participants face an elevation gain of over 2,160 feet on a scenic and challenging route that has evolved due to natural changes over ti..

The Placerville Path Memorial Day Run is a scenic running event held in historic Placerville, California, featuring various race distances including a half marathon, 15k, 10k, 5k, mile, and a kids run. The course runs along the picturesque El Dorado Trail, surrounded by oak trees and rolling hills...