Trail Running Calendar California 2025-2026

The Corral Canyon Trail Scramble is a trail running event held in the Cleveland National Forest near Campo, California. Taking place on May 17, 2025, it offers multiple race distances, including 5 miles, 9 miles, 14 miles, and a 50K ultramarathon. The courses feature rocky terrain, sandy sections, a..

Run for Amma is an annual charity running event held at Skyline Ridge Open Space Preserve in Los Gatos, California. The race offers three distance options: 50K, 30K, and 10K, featuring challenging elevation gains of 5,266 feet, 3,629 feet, and 980 feet respectively. The event fosters a supportive an..

The Placer Trail Running Festival, held in Granite Bay, California, offers a variety of trail races suitable for all levels. Participants can choose from a 25K, 10K, 5K, or a 5K Canicross event, all taking place on scenic, runnable trails near Folsom Lake. The festival emphasizes community and outdo..

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 Bishop High Sierra Ultras, held at Millpond Recreation Area in Bishop, California, offers challenging high-altitude trail races including 6K, 20 Mile, 53K, 50 Mile, and 100K distances. The courses traverse scenic Eastern Sierra Nevada foothills, primarily on 4WD dirt roads with some single-track..

The O'Neill Park Trail Races is a scenic trail running event held in Trabuco Canyon, California, featuring various race distances including 10K, half-marathon, 30K, 50K, and marathon. The race showcases the stunning natural beauty of O'Neill Park, a treasured location in South Orange County. Partici..

Trailquake is a trail running event held in Sanborn Regional Park, Saratoga, California, featuring a half marathon, 10K, and 5K distances. Participants run through scenic trails lined with redwoods and pines, including the challenging San Andreas Trail. The half marathon and 10K courses include asce..

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 takes place on the Soboba Indian Reservation in San Jacinto, California. This event offers marathon, half marathon, 5k, and kids 3k distances with Native and Open divisions. The marathon features a challenging two-loop 13.1-mile course with over 2,0..

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 on the El Dorado Trail in Placerville, California. It features multiple race options, including a Kids Run, 5K, 10K, 15K, and a Half Marathon, with courses passing through beautiful oak trees, rolling hills, and picturesque views...

The Forever Brave Half Marathon in Valencia is a vibrant running event scheduled for May 25, 2025. Participants can choose from various distances, including a 5k, 10k, 15k, and a half marathon, all set on an open course designed for a fun and relaxed experience. The race features out-and-back loops..

The Pasadena 50K Relay & 50K Solo event is set to take place on May 25, 2025, at Hahamongna Watershed Park. This exciting race features a 50K Relay, where teams of up to five runners can compete against each other, making it a great opportunity for friends, family, or running club members to join fo..

The Sonoma Coast Trail Runs, organized by SkyBreaker Racing, is an exciting running event set in the stunning landscapes of Sonoma Coast State Park, California. Participants can choose from various race distances, including a 50K, Trail Marathon, 30K, and Half Marathon. The courses feature beautiful..

The Pacifico Ultra is an exciting running event set in the stunning Angeles National Forest, taking place on May 31, 2025. Participants can choose between two challenging courses: a 50k Ultra featuring 5,626 feet of elevation gain and a 20k Trail with 2,333 feet of gain. Both routes offer breathtaki..

The Calero Trail Run - Spring is a trail running event held at Calero County Park in San Jose, California, featuring multiple race distances including a Kids Run, 5K, 10K, 15K, half marathon, 25K, marathon, and 50K. The course offers challenging single tracks, hills, dirt paths, and scenic vistas, m..

The Wildcat Half Marathon, held in El Sobrante, California, is a trail running event featuring a half marathon, 10K, and 5K distances. Set within Wildcat Canyon Regional Park, the race offers stunning 360-degree views of the Bay Area, including sights of San Francisco, the Golden Gate Bridge, Alcatr..

The The Hills Are Alive 10K will take place in Rolling Hills Estates on Saturday 31 May 2025. You can run between 5 and 10 kilometers.

The Cinderella Trail Run is an exciting running event taking place in Oakland, California, featuring a variety of race distances including a Half Marathon, Marathon, 8K, 30K, 50K, and a free Kid's Run for children aged 6 and under. Set in the scenic Joaquin Miller and Redwood Regional parks, partici..

"Run the Rim" is a trail running event held on June 1, 2025, at the Arnold Rim Trail in Stanislaus Forest, Calaveras County, California. The race offers multiple courses, including a 22-mile point-to-point trail, a half marathon, and a 10K run, all featuring scenic, well-maintained single-track trai..