Trail Running calendar near Boulder Oaks 2025-2026

The Corral Canyon Trail Scramble is a trail running event held in the Cleveland National Forest near Campo, California. Taking place on May 17, 2025, it offers multiple race distances, including 5 miles, 9 miles, 14 miles, and a 50K ultramarathon. The courses feature rocky terrain, sandy sections, a..

The Proctor Valley Monster Endurance Run is a challenging 60-kilometer race set in the rugged terrain of Southern California. Participants will face a grueling course featuring 11,000 feet of elevation gain and 10,000 feet of descent, designed to test their endurance and mental fortitude. The event..

The 1st Annual NATRO@Noli Indian School Trail Race takes place on the Soboba Indian Reservation in San Jacinto, California. This event offers marathon, half marathon, 5k, and kids 3k distances with Native and Open divisions. The marathon features a challenging two-loop 13.1-mile course with over 2,0..

The Lake Miramar 4 Mile Run, part of the Rewind Series by ERS, is a scenic, untimed fun run held near sunset at Lake Miramar in San Diego, CA. The 4-mile out-and-back course features a mix of paved roads and trails along the lake’s picturesque shoreline, offering a varied and enjoyable running exper..

The San Diego 100 is a challenging 100-mile ultramarathon set in the scenic mountains of San Diego County, California. Scheduled for June 6, 2025, the race features a loop course primarily on single-track trails, including sections of the Pacific Crest Trail and various state parks. Participants fac..

The Black Mountain Trail Races in San Diego, CA, offer challenging trail running events across three distances: 50K, 25K, and half marathon. Participants will navigate rugged, technical trails through historic and scenic areas, including Black Mountain, an ancient extinct volcano with diverse wildli..

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 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..

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. The race features mostly runnable single-track trails with stunning views and challenging terrain. The 50K race begins early in the morning, with a 9.5-hour cutoff, while the 15K..

The Double Peak Challenge is an annual outdoor running event held in San Marcos, California, featuring a 10k, 5k, and Kids Trot. Participants enjoy scenic views and a challenging course that ascends to the summit of Double Peak at 1,558 feet. The event includes a competitive 10k race, a fun 5k run,..

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 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 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..

The Roosters Backyard Ultra will take place in San Diego on Saturday 1 November 2025.

The Sri Chinmoy 6-Hour Race in San Diego offers participants a scenic 5-mile loop course around a tranquil urban lake, perfect for runners and walkers of all paces. This event is ideal for those training for marathons or looking to push their endurance beyond traditional distances. Athletes will ben..

The RD Trail Half Marathon will take place in Tijuana on Sunday 16 November 2025. You can run between 10 and 21 kilometers.

Boundiful Endurance Runs take place at Washburn Ranch in Hemet, California, featuring a one-mile loop on a 100% hardpacked dirt surface through a Southern California fruit and nut farm. The event offers multiple race options including 100 miles, relay, and timed runs of 24, 12, 6, and 3 hours. Runne..

The Black Mountain Turkey Burner is a challenging trail race held annually at Black Mountain Community Park in San Diego, California. Part of the Endurance Race Series' Sunshine Series, this event features a half marathon, 10K, and 5K distances. The half marathon is known for its technical trails an..