Trail Running calendar near Prisoners Harbor 2025-2026

Tough Mugu is a challenging trail running event held at La Jolla Group Campground in Point Mugu State Park, Malibu, California. It features two main distances: a 25k and a 10k course, both showcasing Southern California's stunning coastal mountain trails. The 25k course covers 15.75 miles with 2,427..

The Bulldog Ultra is Southern California's oldest 50k trail race, held in the scenic Santa Monica Mountains at Malibu Creek State Park in Calabasas, CA. Celebrating over 30 years, it offers two challenging distances: a 25k trail run and a 50k ultra, featuring steep climbs and rugged terrain with ove..

The No Name Trail Races, now known as the Cheeseboro Canyon Trail Run, take place in Cheeseboro National Park, Agoura, California, within the Santa Monica Mountains National Recreation Area. The event offers multiple distances including a challenging 50K ultra marathon with nearly 5,000 feet of elev..

No Name 5025 is a trail running event held at Cheeseboro National Park in Woodland Hills, California. It features a challenging 50k ultramarathon, along with a half-marathon, 5k, and a kids’ 2k fun run. The course offers diverse terrain, including runnable ascents, winding singletracks, steep fire r..

The Cheeseboro Canyon Trail Run, formerly known as No Name 5025, is a popular, low-key trail running event held in Cheeseboro National Park near Agoura, California. It features diverse terrain including runnable ascents, winding singletracks, steep fire road climbs, and smooth descents. The event of..

The Bandit Ultra Trail is a premier trail running event held in Simi Valley, California, at Corriganville Park. Set against the scenic backdrop of Rocky Peak's mountains and steep canyons, the race offers stunning views of sandstone boulders, oak savannahs, and diverse wildlife habitats. Participant..

The Back On The Ranch Trail Run, held at the private Sand Creek Ranch in Los Olivos, California, is an annual trail running event featuring multiple timed race options: 3, 6, 12, 24, and 48 hours. Participants complete as many 3.25-mile loops as possible on a scenic course with about 302 feet of ver..

The Twilight's Last Gleaming Cross Country Challenge will take place in Ventura on Saturday 25 October 2025.

The Santa Cruz Island Eco-Extreme Trail Half Marathon is a challenging 13.3-mile trail race held on Santa Cruz Island in Channel Islands National Park, California. Organized by the Ventura County Sheriff's Search and Rescue Upper Ojai Team, this rugged course features steep hills, creek crossings, a..

The Santa Clarita Trail Race is an epic trail running event held in the golden hills of Santa Clarita, California, specifically at East Walker Ranch in Placerita Canyon. Scheduled for November 1, 2025, it offers multiple race distances including 5K, 10K, Half Marathon, and a challenging 28K. The cou..

The Island View Endurance Run, held in Goleta, California, offers challenging trail races over December 5-6, 2025. Distances include 100 miles, 100 kilometers, 50 kilometers, and a 25-kilometer option. The course is primarily on trails and fire roads, featuring approximately 25,000 feet of elevation..

The Ray Miller 50/50 is a trail running event held at Point Mugu State Park in Malibu, California. Scheduled for December 6, 2025, the race offers three distance options: a 50-mile ultra, a 50K, and a 30K. Participants experience scenic terrain within the state park, known for its natural beauty and..

The Paramount Ranch Trail Runs, held in Agoura Hills, California, offer a variety of race distances including a 50K, marathon, 30K, half marathon, and 10K. Set on scenic trails at the historic Paramount Ranch, the event provides runners with a challenging and picturesque course through natural terra..

The Sean O'Brien event in Calabasas, California, offers multiple trail running distances including 100K, 50 miles, 50K, marathon, and 30K. The 100K race serves as a qualifier for the 2026 Western States 100. The course features scenic trail views with notable vantage points around miles 7 and 15, pr..

The Santa Barbara Nine Trails is a trail running event held in Santa Barbara, California, featuring two distance options: 35 miles and 17 miles. Organized by AllWeDoIsRun, the race takes place on scenic trails along the California Central Coast, offering runners a challenging and picturesque course...

The Valencia Trail Race, held in Valencia, California, offers a challenging and scenic trail running experience with three distance options: 10K, half marathon, and 50K ultra. Set against the backdrop of Southern California's hills and mountains near state park boundaries, the course features single..

The Nature Made Great Race is an annual running event held in Agoura Hills, California, near Los Angeles. Celebrating over 40 years, it features multiple race distances including the Chesebro Half Marathon, Old Agoura 10K, Deena Kastor 5K, and a 1-mile fun run. The Chesebro Half Marathon offers a sc..

Coyote Two Moon is a challenging trail running event held in the scenic Los Padres National Forest near Ojai, California. Scheduled for the first weekend of May 2026, it offers a range of distances from a 10K fun run to ultra distances including 30K, 55K, 55 miles, 100K, and a grueling 100-mile race..

The Boney Mountain Trail Run is a scenic trail running event held in the Santa Monica Mountains, starting at Rancho Sierra Vista | Satwiwa National Park in Newbury Park, California. It features a challenging half-marathon course that includes creek crossings, single-track climbs, and stunning ocean..

The Born to Run Ultra Marathon Extravaganza is a multi-day trail running event held in Los Olivos, California. Scheduled for May 16, 2026, it offers a variety of distances including 10, 20, 30, and 100 miles, as well as challenging 3-day and 4-day race options. The event is part of the AllWeDoIsRun..