Trail Running calendar near Green Valley Lake 2025-2026

We have found 54 Trailruns within 80 miles of Green Valley Lake. See below where and when you can find the races.

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, 13 Miler, and 9 Miler, all on a scenic 4.6-mile looped course featuring single track trails and dirt r..

The Mt. Baldy 5000 is a challenging 5K mountain race held on the slopes of Mt. Baldy Resort, just outside Los Angeles.Designed for runners of all abilities, the course features nearly 1,500 feet of elevation gain, primarily on fire roads with stunning views and a tough uphill climb. The event includ..

The Harding Hustle is a trail running event held in the Cleveland National Forest and Santa Ana Mountains, featuring 50K, 30K, and 15K distances. The race offers challenging courses with steep climbs, scenic views, and exhilarating descents along the Harding Truck Trail. Well-supported aid stations,..

The SoCal Summer 6K/12K, organized by Pasadena Running Company, is a trail running event held at Lower Arroyo Park in Pasadena. The race features two distances: a 6K and a 12K, with the latter consisting of two loops of the 6K course. Participants can choose their start time from three waves in the..

August 2025

The Riley Park Trail Races is a family-friendly event held at Thomas F. Riley Wilderness Park in Orange County. The race offers various distances, including a 30k, half marathon, 10-miler, 10k, Riley Park 6-hour, and 5k, catering to runners of all levels.Participants can enjoy scenic single and doub..

The Green Valley Lake Half Marathon, along with 5K and 10K events, is scheduled for August 2, 2025, in the scenic San Bernardino Mountains. Participants will enjoy a picturesque course that begins with a flat loop around the lake, followed by a gradual ascent with a 400-foot elevation gain, offering..

The Angeles Crest 100 Mile Endurance Run, established in 1986, is a prestigious ultramarathon that traverses the scenic San Gabriel Mountains in California. This challenging point-to-point race covers a diverse terrain with elevations ranging from 1,135 to 9,300 feet, offering participants a unique..

The Saddleback Wilderness 5k Trail Run is an exciting running event set in the scenic Saddleback Wilderness, located in Orange, California. Scheduled for August 6, 2025, this race features a 5k course that includes both fire roads and single-track trails, with an elevation gain of 300 feet. Particip..

September 2025

The Mount Baldy Run to the Top is a renowned trail race taking place on September 1, 2025, marking its 60th edition. This challenging event spans over 7 miles, starting at an elevation of 6,000 feet and culminating at the summit of Mt. Baldy, which stands at 10,064 feet, featuring a significant elev..

The Gypsum Canyon Wilderness 5k is a trail running event set in the scenic Gypsum Canyon Wilderness in Anaheim, California. Participants will navigate a 5k course featuring fire roads and single track trails, with an elevation gain of 350 feet. The race includes one aid station providing water and e..

The Double Peak Challenge is an exciting outdoor running event held annually in San Marcos, California, featuring a 10k, 5k, and a Kids Trail Trot. Celebrating its 10th year, the event invites participants to tackle a challenging course that includes a significant elevation gain, reaching the summit..

That's No Moon Ultras is a challenging trail running event set in the stunning landscapes of the Cleveland National Forest and Santa Ana Mountains in Southern California. Participants can choose from three distances: 50 miles, 50K, and 30K, all featuring demanding courses with significant elevation..

J Treequinox is a unique 12-hour running event held on a private 20-acre desert property near downtown Joshua Tree, California. Designed for both novice and experienced ultra runners, participants can tackle the course at their own pace, completing laps on a one-mile loop. The event features a festi..

The Angeles National Forest Trail Race is a challenging running event held in the San Gabriel Mountains, starting and finishing at the Mt. Wilson Observatory. The race offers two distances: 25K and 50K, with elevation gains of 3,500 and 7,000 feet respectively.Participants enjoy scenic, rugged trail..

October 2025

The Kodiak Ultra Marathons by UTMB is a multi-day trail running event held in Big Bear Lake, California, offering a variety of race distances, including 100 miles, 100K, 50K, 21K, and 10K. The race features stunning views of Big Bear Lake and traverses diverse landscapes such as high desert, sub-alp..

UTMB Index

The Cahuilla Rez Ultra is a Native-organized running event held on the Cahuilla Indian Reservation in Anza, California, to support the tribe's Youth and Family Programming. Participants can choose from various race options, including a 100-mile race, 24-hour, 12-hour, 6-hour, and a half marathon. Th..

The SPACEROCK Trail Race is an exciting outdoor running event held at Vasquez Rocks Natural Park in Agua Dulce, California. Scheduled for October 18, 2025, it offers a variety of race distances, including a Half Marathon+, 15K, 10K, and 5K, catering to runners of all levels. The course features the..

The Pasadena Trail Half Marathon is a premier running event hosted by Pasadena Running Company, featuring challenging routes that highlight the scenic trails of Pasadena. Scheduled for October 19, 2025, this event offers three distance options: a Half Marathon, 10K, and 5K, catering to runners of al..

The Machete Trail Madness 100 Miler is a challenging ultramarathon event held in Lake Perris, California, featuring a 100-mile, 50-mile, and 10-mile race. Scheduled for October 31, 2025, this event is known for its tough course, with a 10-mile loop that includes 2,300 feet of elevation gain per lap...

November 2025

The Wildwood Canyon Trail Run is an exciting running event set in the picturesque Wildwood Canyon State Park in Yucaipa, CA. Participants will tackle a scenic 3.6-mile loop course, surrounded by stunning natural landscapes, including rugged canyons and oak-studded hills. Runners have 8 hours to comp..