Trail Running calendar near Green Valley Lake 2025-2026

The O'Neill Park Trail Races, scheduled for May 17, 2025, in Trabuco Canyon, CA, offers a stunning running experience through the beautiful trails of O'Neill Regional Park. Participants can choose from various race distances, including a 50k, marathon, 30k, half marathon, and 10k. The event emphasiz..

The Gorgonio View Trail Run, part of the Spartan Trail series, takes place at the renowned Big Bear Mountain Resort in Southern California. This scenic 10K race features beautiful singletrack trails that meander through high-altitude pine forests, offering participants challenging climbs and descent..

The Nanny Goat event, taking place on May 24-25, 2025, in Riverside, CA, offers a unique running experience with various race options including 6-hour, 12-hour, 24-hour, and a 100-mile challenge. Participants can run solo or as part of a relay team, aiming to complete as many laps as possible on a f..

The Griffith Park Trail Marathon Relay & 8K is a celebrated running event in Los Angeles, recognized as one of Runner’s World magazine’s "10 Best Races You’ve Never Heard Of." Scheduled for June 8, 2025, this event offers participants the chance to tackle scenic trails and challenging terrain in Gri..

The Holcomb Valley Trail Run, taking place on June 14, 2025, in Big Bear Lake, CA, offers participants three distance options: 33 miles, 14 miles, and 7 miles. The event showcases the scenic Pacific Crest Trail and aims to promote local trail running while supporting the volunteer search and rescue ..

The Orange Curtain Endurance Run is a premier running event taking place on June 20-21, 2025, in Cerritos, California. Participants can choose from various distances, including 100K, 50K, marathon, 30K, 10K, and 24-hour races. The course features a flat, out-and-back design along a bike path, making..

The Whiting Ranch Trail Races, scheduled for June 28, 2025, in Trabuco Canyon, CA, features three race distances: a 10K, a half marathon, and a 30K. Participants will enjoy scenic trails in the foothills of the Santa Ana Mountains, with well-marked routes and ample support throughout the event. The ..

The Mt. Baldy 5000 is a challenging 5K mountain race taking place at the Mt. Baldy Resort, designed for runners of all skill levels.The course is primarily uphill, offering stunning views and a unique running experience. Following the race, participants can enjoy a BBQ dinner, live music, and drinks..

Elder Creek Night Runs is an exciting running event set in the beautiful desert landscape of Anza, California, under a full moon. Participants can choose from various distances, including 50K, 30K, half marathon, and 9 miles, all on a scenic 4.6-mile looped course featuring single track trails and d..

The Harding Hustle is an exciting trail running event set in the scenic Santa Ana Mountains of Orange County, California. Scheduled for July 19, 2025, it features three challenging distances: 50K, 30K, and 15K, all along the Harding Truck Trail. Participants can expect breathtaking views, steep clim..

The SoCal Summer 6K/12K, organized by Pasadena Running Company, is a vibrant trail running event set in Pasadena's scenic Lower Arroyo Park. Participants can choose between two distances: a 6K trail run and a 12K trail run, both featuring mixed-use and single-track trails. The event includes early p..

The Angeles Crest 100 Mile Endurance Run, established in 1986, is a prestigious ultramarathon that challenges participants to traverse 100 miles through the scenic San Gabriel Mountains. This point-to-point race features significant elevation changes, ranging from 1,135 to 9,300 feet, and includes s..

The Riley Park Trail Races, set in the scenic Thomas F. Riley Wilderness Park in Coto de Caza, CA, offers a variety of race distances including a 30k, half marathon, 10 miler, 10k, and 5k, making it a perfect event for runners of all levels. Scheduled for August 2, 2025, this family-friendly event p..

The Green Valley Lake Half Marathon, part of a larger event that includes a 5K and 10K, is set to take place on August 2, 2025, in the scenic San Bernardino Mountains. The race features a picturesque course that begins with a flat loop around the lake, followed by a gradual ascent with a 400-foot el..

That's No Moon Ultras is a challenging trail running event set in the scenic Cleveland National Forest and Santa Ana Mountains of Southern California. Participants can choose from three distances: 50 miles, 50K, and 30K, all featuring significant elevation gains and technical terrain. The race empha..

The Angeles National Forest Trail Race, celebrating its 20th anniversary, offers both 25K and 50K races on September 27, 2025, starting and finishing at the iconic Mt. Wilson Observatory. Set in the scenic San Gabriel Mountains, the 25K features a challenging 3,500 feet of elevation gain, while the ..

The HOKA Kodiak Ultra Marathons by UTMB is a thrilling two-day running event set in the picturesque mountain town of Big Bear Lake, California. Participants can choose from five different race distances, each offering a unique experience through diverse landscapes, including high desert and sub-alpi..

The Cahuilla Rez Ultra is a unique running event held on the Cahuilla Indian Reservation in Anza, California, featuring various race options including a 100-mile, 24-hour, 12-hour, 6-hour, and a half marathon. This event serves as a fundraiser for the tribe's Youth and Family Programming, promoting ..

The SPACEROCK Trail Race, scheduled for October 18, 2025, takes place at the iconic Vasquez Rocks Natural Park in Southern California. This event offers a variety of race distances, including a Half Marathon+, 15K, 10K, and 5K, catering to runners of all skill levels. Participants can enjoy the stun..

The Pasadena Trail Half Marathon is a premier running event organized by Pasadena Running Company, featuring challenging routes that showcase the beautiful trails of Pasadena. Scheduled for October 19, 2025, this event includes three distance options: a Half Marathon, 10K, and 5K, catering to runner..