Trail Running calendar near Rancho Santa Margarita 2025-2026

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. Designed for runners with some trail experience, the group enjoys a relaxed pace and changing routes each time. The upcoming run c..

The Los Angeles Sunset Trail Relay is a scenic trail running event held in Griffith Park, Los Angeles, featuring a 15K solo race, a 5K solo race, and a 30K relay for teams of four. Set during the golden hour, runners experience panoramic views of Griffith Park, Downtown LA, the LA River, and Glendal..

The Mount Baldy Run to the Top is a challenging 7-mile trail race held in Mount Baldy, California. Celebrating its 60th running, the race starts at 6,000 feet elevation and ascends 4,000 feet to the summit of Mt. Baldy, the third tallest mountain in Southern California at 10,064 feet.This event serv..

The Gypsum Canyon Wilderness 5k is a trail running event held at Gypsum Canyon Wilderness in Anaheim, California. The 3.3-mile course features a mix of fire roads and single-track trails with an elevation gain of 350 feet, offering a moderately challenging run through natural terrain. Participants w..

Double Peak Challenge is an outdoor trail race in San Marcos, California, offering a 10K competitive option, a 5K Fun Run, and a Kids Trail Trot. The course starts at the San Elijo Recreation Center and climbs to Double Peak Summit, delivering about 1,176 feet of elevation gain to reach 1,558 feet a..

That's No Moon Trail Races, held in Silverado, California, offers challenging trail running events in the rugged Cleveland National Forest and Santa Ana Mountains. The race features three distances: 50 miles, 50 kilometers, and 30 kilometers, all traversing technical single-track trails and 4x4 jeep..

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 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 100-kilometer course composed of three distinct loops starting and ending at Camp Cuyamaca. The first loop covers 31.5 miles on the park'..

The HOKA Kodiak Ultra Marathons by UTMB take place in Big Bear Lake, California, a rustic mountain town near Los Angeles. This two-day festival features five race distances ranging from 10K to 100 miles, offering runners a challenging high-altitude experience with elevation gains up to 4100 meters...

The Carmel Valley Trail Race, held annually at Gonzales Canyon Open Space in San Diego, offers a scenic and challenging trail running experience. Starting and finishing at Solana Ranch Park, the race features three distances: 15K, 10K, and 5K. The 15K and 10K courses include the notorious "Puke Hill..

The Rock It in Chino Hills 5K & 10K is a trail running and hiking event held at Chino Hills State Park in Brea, California. Participants can choose between a 5K or 10K course that showcases the park's stunning and expansive trails, offering scenic views and a tranquil outdoor experience. The race in..

Live Oak Odyssey is a fixed-time trail running event held in O’Neill Regional Park in Trabuco Canyon, California. Runners cover a 2.75-mile loop with roughly 500 feet of vertical gain per lap and can race for either 3 or 6 hours. The course threads through coast live oak and sycamore woods, with hil..

The Cahuilla Rez Ultra, held on the Cahuilla Indian Reservation in Anza, California, offers a unique running experience with distances including a 100-mile race, 24-hour, 12-hour, 6-hour events, a half marathon, and a Tribal Member 5k. The ultra races feature a 2-mile loop on double track dirt roads..

SPACEROCK Trail Race is an trail running event set in Vasquez Rocks Natural Area Park, Agua Dulce, California. On October 18, 2025, runners can tackle Half Marathon+ (about 13.9 miles with up to 3,200 feet of elevation gain and descent), 15K, 10K, or 5K loops, each forming a course back to the start..

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 Encinitas Beach Run is a unique running event held at Moonlight Beach in Encinitas, California. Participants can choose between 5k and 10k distances, running on sand along a scenic coastal course starting near the iconic palm tree at Moonlight Beach and heading north. The event features a fun, f..

The No Name Trail Races, held in Agoura, California within Cheeseboro National Park of the Santa Monica Mountains, offer 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 wi..

No Name 5025 is a challenging trail running event held at Cheeseboro Canyon in Woodland Hills, California. Featuring a 50k ultramarathon, a half-marathon, a 5k trail run, and a kids' 2k fun run, the race offers diverse terrain including runnable ascents, winding singletracks, steep fire road climbs,..

The Cheeseboro Canyon Trail Run, hosted by SoCalTrail, is a popular, low-key event held in Cheeseboro National Park near Agoura, California. It features multiple race distances including a challenging 50k ultramarathon, a half-marathon, a 5k trail run, and a kids' 2k fun run. The course offers diver..

Casper's Trail Races on Oct 25, 2025, take place in San Juan Capistrano, California, offering trail distances: 10K, 13.2 miles, 30K, marathon, and 50K. The event, hosted by KHraces, aims for a well-supported, well-marked experience with swag, highlighting Orange County’s fall trail atmosphere. While..