Trail Running calendar near Big Bear 2025-2026

The Big Bear 4th of July Fun Run is an annual trail running event held at Maple Hills Trails in Big Bear City, California. Celebrating its 4th edition in 2025, the race offers three distance options: 5K, 10K, and 15K, catering to runners of all levels. The event emphasizes a family-friendly atmosphe..

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..

The Mt. Baldy 5000 is a challenging 5K mountain race held on the slopes of Mt. Baldy Resort near Los Angeles.The 3.1-mile course features nearly 1,500 feet of elevation gain, primarily uphill on fire roads with good footing, offering spectacular views and a tough climb suitable for runners of all le..

Elder Creek Night Runs is a unique nighttime trail running event held near Anza, California, on the scenic lands of the Cahuilla Band of Indians. The race features distances of 9 miles, 13 miles (half marathon), 30K, and 50K, all run on a 4.6-mile loop combining single track trails and open dirt roa..

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 SoCal Summer 6K/12K, hosted by Pasadena Running Company, is a trail running event held at Lower Arroyo Park in Pasadena, California. Scheduled for a summer Friday evening, it offers two distance options: a 6K (3.9 miles) and a 12K (7.8 miles, two loops of the 6K course). The course features mixe..

The Green Valley Lake Half Marathon, held in the San Bernardino Mountains between Running Springs and Big Bear, offers a scenic and challenging mountain race experience. The course begins with a flat 3/4 mile loop along the lake, then ascends gradually with a 400-foot climb to a rewarding overlook...

The Angeles Crest 100 Mile Endurance Run, held annually since 1986, is a challenging point-to-point ultramarathon in the San Gabriel Mountains of Southern California. Covering 100 miles from Wrightwood to Altadena, the course features elevations from 1,135 to 9,300 feet, with steep climbs, rocky ter..

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 runners wit..

The Into the Wild OC Trail Run is a 5K trail race held at Saddleback Wilderness in Orange, California. The course features a mix of fire roads and single-track trails with an elevation gain of 300 feet, offering a moderately challenging run through natural terrain. Participants will find one aid sta..

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 is a..

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..

That's No Moon Trail Races take place in the rugged Cleveland National Forest and Santa Ana Mountains near Silverado, California. Offering 50-mile, 50K, and 30K distances, the event challenges runners with significant elevation gains and technical terrain across remote single-track trails and forest..

The Double Peak Challenge is an annual outdoor 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 spec..

J Treequinox is a 12-hour ultra running event held on a private 20+ acre desert property near downtown Joshua Tree, California. The race features a 1-mile loop course, allowing participants to run at their own pace, one lap at a time. It offers a low-key atmosphere ideal for those new to ultra runni..

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, a 25K with 3,500 feet of elevation gain and a 50K with 7,000 feet, the race starts and finishes at the historic Mt...

The HOKA Kodiak Ultra Marathons by UTMB is a challenging alpine trail running event held in Big Bear Lake, California, a rustic mountain town near Los Angeles. The race spans two days with five distances ranging from 10.4 km to 159.3 km, featuring significant elevation gains up to 4100 meters. Runne..

Live Oak Odyssey is a fixed-time trail running event held at O'Neill Regional Park in Trabuco Canyon, California. Participants choose between 3-hour and 6-hour race options, running loops of a 2.75-mile course featuring approximately 500 feet of vertical gain per loop. The scenic course winds throug..

Rock It in Chino Hills 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, both offering scenic views and tranquil natural surroundings with trails extending across the expansive park. The event emphasizes the be..

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..