Trail Running calendar near San Diego 2025-2026

The Lake Miramar 4 Mile is a scenic, untimed fun run held at Lake Miramar in San Diego, CA. Part of the Rewind Series by ERS, this event features a 4-mile out-and-back course combining paved roads and trails along the lake's beautiful shores. Designed for a relaxed, family-friendly atmosphere, it of..

The San Diego 100 is a challenging 100-mile ultramarathon held in the mountainous east county of San Diego, California, starting and finishing at Lake Cuyamaca Recreation Area. The course is a 90% single-track loop traversing four recreational areas, including sections of the Pacific Crest Trail, No..

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 Black Mountain Trail Races, held in San Diego, CA, offer three challenging distances: 50K, 25K, and a half marathon. Set on the historic Amat Kwanyil trails of Black Mountain, an ancient extinct volcano and Kumeyaay land, the course features diverse terrain including chaparral, coastal sage scru..

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 OC Trail Runners Group Run is a free, social, and non-competitive trail running event held in Newport Coast, California, at El Moro and Laguna Coast Wilderness Park. The run emphasizes enjoying the outdoors and camaraderie, making it welcoming for all levels. Each group run features a different..

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..

Elder Creek Night Runs is a unique nighttime trail running event held near Anza, California, on land graciously provided by the Cahuilla Band of Indians. The race features distances of 9 miles, 13 miles, 30K, and 50K, all run on a 4.6-mile loop combining single-track trails and wide dirt roads throu..

The Peak is a challenging trail running event held near Julian, California, featuring 50K, marathon, and half marathon distances. The course primarily follows single-track trails with stunning mountain views, including a climb to Cuyamaca Peak, the second highest point in San Diego County. Runners f..

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..

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..

South Bay 24 is an endurance running event held at Montgomery Waller Community Park in San Diego, featuring a 1.25-mile loop course that includes trail, grass, and bike path surfaces. The event offers multiple race options including a 24-hour race, 12-hour day and night races, a 6-hour race, and a h..

The Noble Canyon 50K and 15K is an annual trail running event held in the scenic mountains of east San Diego, California, specifically in Pine Valley. The races take place on runnable single-track trails within National Forest land, offering participants stunning views and challenging terrain. The e..

That's No Moon Trail Races take place in the rugged Cleveland National Forest and Santa Ana Mountains near Silverado, California. The event offers challenging trail runs in three distances: 50 miles, 50K, and 30K. Participants navigate demanding courses with significant elevation gains, exposed ridg..

The Double Peak Challenge is a distinctive running event held in San Marcos, California, featuring a challenging 10K race, a 5K fun run, and a Kids Trail Trot. The 10K course is known for its demanding elevation gain of 1,176 feet, culminating at Double Peak's summit at 1,558 feet, offering runners..

The Cuyamaca 100K is an ultramarathon held in Cuyamaca Rancho State Park near Julian, California, about an hour east of San Diego. The race features a challenging course composed of three distinct loops starting and ending at Camp Cuyamaca. The first loop covers 31.5 miles on the park's western side..

The Carmel Valley Trail Race, held at Gonzales Canyon Open Space in San Diego, is a scenic trail running event featuring 15K, 10K, and 5K distances. Starting and finishing at Solana Ranch Park, the course offers a flat start and finish with challenging elevation gains in the middle, including the no..

The Cahuilla Rez Ultra is a unique running event held on the Cahuilla Indian Reservation in Anza, California. It offers multiple race distances including a 100-mile ultra, 24-hour, 12-hour, 6-hour, and a half marathon. The course features a 2-mile loop on double track dirt roads with moderate elevat..

The Encinitas Beach Run, presented by Excelerace, is a unique running event held at Moonlight Beach in Encinitas, California. Scheduled for October 25, 2025, the race takes place on the sand at low tide between Moonlight Beach and Grandview. Participants can choose between 5k and 10k distances, with..

Caspers Trail Races, held in San Juan Capistrano, California, offer a variety of distances including 10K, 13.2 miles, 30K, marathon, and 50K. This Orange County event features well-marked and well-supported trail courses, promising a great running experience. Participants can expect quality race swa..