Trail Running calendar near Mount Wilson 2025-2026

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 Pacifico Ultra is a scenic trail running event held in the Angeles National Forest near Palmdale, California. It offers two race distances: a challenging 50k ultra marathon covering 31.4 miles with 5,597 feet of elevation gain, and a half marathon with 13 miles and 2,510 feet of gain. The course..

The Malibu Canyon Trail Races, presented by Keira Henninger, take place in Malibu, California, within the scenic coastal Santa Monica Mountains. This challenging event offers multiple distances including 100K, 50-mile, 50K, 30K, and a half marathon, all run on single track and fire roads through rid..

The Griffith Park Trail Marathon Relay & 8K is a celebrated running event held at Park Center in Griffith Park, Los Angeles. Recognized by Runner’s World as one of the "10 Best Races You’ve Never Heard Of," it offers both a marathon relay for teams of up to five and an 8K race for solo runners. Part..

The Black Star Canyon 5k Trail Run takes place at Black Star Canyon in Silverado, California. The 3.3-mile course features a mix of fire roads and single-track trails with an elevation gain of 390 feet, offering a moderately challenging run through scenic terrain. The race starts and finishes at the..

The Holcomb Valley Trail Run, held annually in Big Bear Lake, California, offers runners three challenging distances: 33 miles, 14 miles, and 7 miles. The race course features scenic sections of the Pacific Crest Trail and Forest Service roads through Holcomb Valley, with significant elevation gains..

The Orange Curtain Endurance Run takes place in Cerritos, California, featuring distances of 100K, 50K, 30K, marathon, 24-hour, 12-hour, 10K, and 6-hour events. The course is a mostly flat 10 km out-and-back loop along the San Gabriel River bike path, combining asphalt and dirt surfaces, repeated mu..

The Into the Wild OC Trail Run takes place at Fremont Canyon via Irvine Regional Park in Orange, California. The event features a challenging 17-mile (27k) single-loop course primarily on fire roads, with an elevation gain and loss of 3,820 feet. Runners have the option to complete a shorter out-and..

The Red Rock Rumble is a challenging 10k trail race held in the stunning Red Rock Canyon of Topanga, California. Featuring steep climbs, rugged terrain, and breathtaking views of the Santa Monica Mountains and Pacific Ocean, the course includes 1,360 feet of vertical gain and loss, with a mix of fir..

The Whiting Ranch Trail Races, held in Trabuco Canyon, California, offer a scenic running experience through Whiting Ranch Wilderness Park in Orange County. Participants can choose from four distances: 6K, 10K, half marathon (13.2 miles), and 30K. The course features challenging climbs, expansive vi..

The Red Rock Wilderness Trail Run is a 5K (3.4 miles) race held at the Red Rock Wilderness in Silverado, California, starting and finishing at the Limestone Canyon/Augustine Staging area. The course features a mix of fire roads and single-track trails with an elevation gain of 300 feet, offering a m..

The Mt. Baldy 5000 is a challenging 5K mountain race held on the slopes of Mt. Baldy Resort near Los Angeles.The 3.1-mile course features nearly 1,500 feet of elevation gain, primarily uphill on fire roads with good footing, offering spectacular views and a tough climb suitable for runners of all le..

The Harding Hustle is a challenging trail running event held in the scenic Cleveland National Forest and Santa Ana Mountains near Silverado, California. It offers three distances: 50K, 30K, and 15K, all primarily on the Harding Truck Trail, featuring steep climbs, exhilarating descents, and breathta..

Tough Mugu is a challenging trail running event held at La Jolla Group Campground in Point Mugu State Park, Malibu, California. Featuring 25k and 10k distances, the race showcases Southern California’s stunning coastal mountain trails with scenic views of the Pacific Ocean, Channel Islands, and Bone..

The SoCal Summer 6K/12K, organized by Pasadena Running Company, is a vibrant trail running event set in Lower Arroyo Park, Pasadena. Participants can choose between two distances: a 6K and a 12K trail run, both designed to showcase the area's beautiful interconnected trails. The event features a wav..

The Green Valley Lake Half Marathon, along with 5K and 10K events, is scheduled for August 2, 2025, in the scenic San Bernardino Mountains. Participants will enjoy a picturesque course that begins with a flat loop around the lake, followed by a gradual ascent with a 400-foot elevation gain, offering..

The Angeles Crest 100 Mile Endurance Run, held annually since 1986, is a challenging point-to-point ultramarathon in the San Gabriel Mountains of Southern California. Covering 100 miles from Wrightwood to Altadena, the course features elevations from 1,135 to 9,300 feet, with steep climbs, rocky ter..

The Riley Park Trail Races, held in Thomas F. Riley Wilderness Park in Orange County, California, offer a variety of distances including a 30k, half marathon, 10 miler, 10k, 5k, and a unique 6-hour race. This family-friendly event features scenic single and double track trails, providing a fun and c..

The Into the Wild OC Trail Run is a 5K trail race held at Saddleback Wilderness in Orange, California. The course features a mix of fire roads and single-track trails with an elevation gain of 300 feet, offering a moderately challenging run through natural terrain. Participants will find one aid sta..

The Bulldog Ultra, held in Malibu Creek State Park, Calabasas, CA, is Southern California's oldest 50k trail race, celebrating over 30 years. Scheduled for August 16, 2025, it offers two distances: a challenging 50k ultra with 29.4 miles and 5,784 feet of elevation gain, and a 25k trail run covering..