Trail Running calendar near South El Monte 2026-2027

An obstacle event in Phelan, California where people and their dogs navigate a 20 acre course with over 20 obstacles, including mud, water and problem solving. The program also offers a 1k walk/run and a volunteer option.

Run through the iconic rock formations of Vasquez Rocks Natural Area Park in a variety of trail distances. Challenge yourself on technical terrain including the Pacific Crest Trail and a 500 foot tunnel.

Experience scenic singletrack and natural terrain at Hahamongna Watershed Park in Pasadena with options for a trail half marathon, 10K, or 5K on Sunday, October 18, 2026. Perfect for trail runners seeking a challenging yet runnable course.

A trail running event at Caspers Wilderness Park on October 24, 2026, offering 10k, half marathon, 35k, marathon and 50k courses. Courses are described as marked and supported, with an athlete guide and past results available.

Run an 8-hour loop course on a scenic 3.7-mile trail in Wildwood Canyon State Park. The event features an aid station, vendors, and live music. An after-party follows at a local brewery.

Trail races in Chesebro Canyon near Agoura, CA featuring a 50k, a half marathon and a 5k on varied singletrack and fire road terrain with aid stations, finisher medals and post-race food.

Machete Muertos 200 is a multi-distance trail event at Lake Perris, CA from October 28 to November 1, 2026. The 200 mile race includes over 44,000 feet of elevation and a 96 hour cutoff; camping and cash prizes are provided.

Trail races in Silverado, CA run out of Black Star Canyon with a marathon, a new 25k, a half marathon and a 10K. Routes follow creekside trails, switchbacks and ridge sections with multiple aid stations.

Experience a premier trail running event on Catalina Island featuring a half marathon, 10K, and kids run through the rugged interior and scenic hillsides of Avalon.

This 21 mile trail run near Yucaipa is postponed from September 2026. The challenging course features over 4,300 feet of climbing on Crafton Hills terrain, with aid station support.

Experience an obstacle course race at Oak Canyon Park featuring a 5 km course with over 15 obstacles and a Mini Monkey Run for kids. Enjoy a festive atmosphere with music, food, and free spectator access.

A Thanksgiving tradition in Santa Clarita Central Park. Choose between a hilly 5K cross country course or a 1K event for younger participants. Proceeds benefit local youth track and field programs.

A Thanksgiving morning trail event in the Santa Monica Mountains near Reseda offering a half marathon, 10k and 5k on fire roads and singletrack. Half marathon winners receive $500 each and entries include medals and race photography.

Celebrate Thanksgiving morning with a scenic 5K or 10K run along Huntington Beach to fund clean water projects for communities in need around the world.

A 28k trail run in Fremont Canyon at Irvine Regional Park featuring about 3800 feet of elevation change and four aid stations. The course runs on fire roads, is cupless, and participants are asked to carry personal hydration.

Ray Miller 50/50 is a trail race at Point Mugu State Park in Malibu on December 5, 2026 offering 50 Miler, 50K and 30K distances. Registration opens April 1, 2026 at 6:00 AM PT and last year it sold out in a day.

A last person standing race in Yucaipa, CA, where runners complete 4.16-mile loops until only one remains. The event, scheduled for December 2026, features a Krampus-themed challenge of endurance.

Trail races at Crystal Cove State Park in Laguna Beach offering 15K, 6K and a Kids 1K loop. The El Moro 15K features technical trail sections and a $2,000 prize purse, with shirts, finisher medals, free photos and post-race amenities.

Reindeer Run at Griffith Park on December 19, 2026 offers 5k, 10k, 15k and half marathon routes on marked hard packed dirt trails with aid station support, finisher medals, photos, and results posted after the event.

A 68 mile ridge line ultra across the Backbone Trail in the Santa Monica Mountains with about 13,600 feet of gain, relay options, and a 200 runner cap. Solo runners must show a prior 50 mile trail finish.