Trail Running calendar near Ventura 2025-2026

The Anytime Runners 12H Training Run is a supported endurance event held at Griffith Park, Los Angeles, specifically at the Crystal Spring Picnic Area. Participants run or walk on a mostly flat 3-mile loop trail for up to 12 hours, from 6 AM to 6 PM, with the flexibility to start anytime between 6 A..

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 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 bre..

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, held in Agoura, California within Cheeseboro Canyon National Park, offers a variety of trail running distances including a challenging 50K ultra marathon, a half marathon, a 5K trail run, and a new kids 2K fun run. The courses feature diverse terrain with runnable as..

The Bandit Ultra Trail is a premier trail running event held in Simi Valley, California, at Corriganville Park. Offering three race distances—50K, 30K, and 15K—the course traverses the scenic Rocky Peak area, known for its striking sandstone boulders, oak savannahs, and diverse wildlife habitats. Ru..

The Angeles National Forest Trail Race, celebrating its 20th anniversary, takes place in the scenic San Gabriel Mountains at Mt. Wilson, California. Offering two challenging distances, the 25K features 3,500 feet of elevation gain, while the 50K includes 7,000 feet, both starting and finishing at th..

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 including 3, 6, 12, 24, and 48-hour runs. Participants complete as many 3.25-mile loops as possible on a clockwise, single-direction..

The SPACEROCK Trail Race is an annual trail running event held at the iconic Vasquez Rocks Natural Park in Agua Dulce, California. Scheduled for October 18, 2025, it offers multiple race distances including a challenging Half Marathon+ (nearly 14 miles with over 3,200 feet of elevation gain), 15K, 1..

The Pasadena Trail Half Marathon, hosted by Pasadena Running Company, takes place at Hahamongna Watershed Park in Pasadena, California. This event offers three distance options: 5K, 10K, and a challenging half marathon. The half marathon course spans 13.1 miles with an elevation gain of 1,855 feet,..

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 Griffith Park Trail Marathon is a scenic trail running event held annually in Los Angeles, California, within the iconic Griffith Park. The race features multiple distances including a marathon, 50K, 30K, half marathon, and 10K, all showcasing a mix of beautiful single-track trails and double-tr..

The 4 Mile Hill Challenge is a scenic and challenging running event held at the Audubon Center at Debs Park in Los Angeles, CA. This trail run features rolling hills within a historic park, starting and finishing at the nature center. The course includes hydration stops and is suitable for all level..

The Island View Endurance Run, held December 5-6, 2025, takes place at Gaviota State Park and Ortega Trail near Goleta and Lompoc, California. It offers challenging distances of 100 miles, 100 kilometers, and 50 kilometers on a course that is 99% trail and fire road, featuring approximately 25,000 f..

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 Hanukkah 8 Krazy Kilometers is an annual family-friendly running event held at Panorama Vista Preserve in Bakersfield, California. Participants can choose between an 8K race and a 2K Latke Loop Fun Run/Walk, both set on scenic trails along the Kern River Parkway. The event celebrates Hanukkah, t..

The Paramount Ranch Trail Runs, held in Agoura Hills, California, offer a variety of race distances including 50K, marathon, 30K, half marathon, and 10K. Set on scenic trails at Paramount Ranch, the event provides runners with a chance to experience beautiful terrain and a welcoming atmosphere. The..

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