Trail Running calendar near San Juan Capistrano 2025-2026

We have found 79 Trailruns within 80 miles of San Juan Capistrano. See below where and when you can find the races.

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 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 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 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 SPACEROCK Trail Race is an annual trail running event held at the iconic Vasquez Rocks Natural Park in Agua Dulce, California. Scheduled for October 18, 2025, it offers multiple race distances including a challenging Half Marathon+ (nearly 14 miles with over 3,200 feet of elevation gain), 15K, 1..

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

The Catalina Island Half-Marathon & 10K is a scenic trail running event held in Avalon, California on Catalina Island. The half-marathon covers 13.1 miles, starting in Avalon and passing the historic Wrigley Mansion before entering the island's rugged interior with challenging climbs. Runners are re..

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 4 Mile Hill Challenge is an exciting running event scheduled for November 15, 2025, at the Audubon Center at Debs Park in Los Angeles, CA. This event features a scenic 4-mile course that includes rolling hills and all-trail paths, making it suitable for participants of all skill levels, from beg..

Caspers Trail Races, held in San Juan Capistrano, California, offers a variety of trail running events including a 10K, half marathon, 30K, marathon, and 50K. The races are known for being well-supported, clearly marked, and providing participants with quality swag. Organized by KH Races, the event..

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..

December 2025

The Fremont Canyon 28k Trail Run is an exciting running event taking place in Irvine Regional Park, Orange, California. Scheduled for December 6, 2025, this challenging 28k (17.5 miles) course features fire roads with an elevation gain and loss of 2860 feet, making it suitable for experienced runner..

The Anza Borrego Cuyamaca 50 Mile Run is a scenic ultramarathon held in San Diego County, California. The race covers 50 miles along diverse trails, starting at Sunrise Trailhead and descending into Cuyamaca Rancho State Park. Runners ascend Stonewall Peak, traverse wooded trails near a lake, and fi..