Trail Running calendar near Rancho Santa Margarita 2025-2026

Badwater Salton Sea is a demanding 81 mile team ultramarathon from the Salton Sea to Palomar Mountain, climbing from below sea level to alpine heights. Teams of two or three tackle desert roads and trails in a limited entry field.

The SoCal Redwood Race will take place in Brea on Saturday 25 April 2026. You can run between 3 and 12 kilometers.

Take on a scenic 100 mile loop from Lake Cuyamaca near Julian, CA on mostly single track trails with about 15,400 feet of climb. With a 32 hour limit this challenging ultramarathon is a Western States qualifier.

Join a memorial trail marathon in San Diego on May 2, 2026, honoring Dingneng Wang at Los Peñasquitos Canyon Trail. This self supported course offers scenic canyon views; register free by April 30 for an official result.

Test your trail legs at the O'Neill Park Trail Races on May 16, 2026 in scenic O'Neill Regional Park. Choose from 50k to 10k distances and enjoy challenging singletrack, great views and a supportive event atmosphere.

Tackle a scenic 10K trail at Snow Summit in Big Bear Lake on May 17, 2026, with technical climbs, singletrack through high pine forest and sweeping mountain views. Part of a Spartan OCR festival weekend.

Event overview Nanny Goat is an ultrarunning event held May 23-24, 2026 at a private horse ranch in Riverside, California. This is the 17th running of the event and it is scheduled over Memorial Day Weekend. Race formats offered include sol..

Pacifico Ultra is a scenic, fully-supported trail event in Palmdale, California, set in the Angeles National Forest. It offers two distances: a 50k Ultra (31.4 miles with 5,597 feet of vertical gain) and a Trail Half Marathon (13 miles with..

Experience scenic coastal singletrack and canyon trails at Point Mugu State Park on June 6, 2026. Choose from distances from a half marathon up to a 100K and test your limits on classic Malibu terrain.

Tackle the PCT 50, a 50 mile out and back trail run in Cleveland National Forest on June 6. Expect rocky single track, steep climbs and about 7,500 feet of gain into the scenic Laguna Mountains.

Griffith Park Trail Marathon Relay & 8K The Griffith Park Trail Marathon Relay & 8K takes place in Griffith Park (Park Center), Los Angeles, on June 7, 2026. The event offers both individual and team relay options and is held on mar..

Event overview The Phoenix Rising run is scheduled for Saturday, June 13, 2026, at Griffith Park in Los Angeles. The event offers the following distances: 5k 10k (two 5k loops) 15k (three 5k loops) Half marathon (three 4.36-mile loops) Al..

The Black Mountain Trail Races, held in San Diego, California, feature challenging 50K, 25K, and half marathon trail runs. The event takes place on scenic trails that honor the land of the Kumeyaay People, emphasizing respect for the area's..

Event overview Tough Mugu is a trail running event held at La Jolla Group Campground in Point Mugu State Park, 1 mile north of 9000 E Pacific Coast Hwy, Malibu, CA 90265. The event includes the following race distances: 10k 25k The event..

Event overview The Hot to Trot race takes place on Saturday, July 18, 2026, at Griffith Park, Crystal Springs Picnic Area in Los Angeles. Distances offered are: 5k - out-and-back route 10k - two 5k loops 15k - three 5k loops Half marathon..

Event details The Harding Hustle takes place Saturday, July 18, 2026, in the Cleveland National Forest near Modjeska Canyon / Tucker Wildlife Sanctuary, Silverado, CA. Distances offered: 50K - time limit 9 hours; elevation gain 5,926 ft; m..

Run under the full Buck Moon on Cahuilla land near Anza at Elder Creek Night Runs. Choose looped 9 mile, half marathon, 30K or 50K courses on desert single track and dirt road with Cahuilla Mountain views in a 200 runner field.

Choose a 5K, 10K, or half marathon through scenic Green Valley Lake, featuring lakeside loops, dirt roads and a rewarding climb to a viewpoint. Chip timing, aid stations and post race awards benefit The Children’s Forest for a fun mountain..

The Bulldog Ultra The Bulldog Ultra is a trail running event held in the Santa Monica Mountains at Malibu Creek State Park on August 15, 2026. Distances offered include: 25k Trail Run 50k Ultra 75k (listed in the event schedule) The cours..

The Ascot Hills Challenge 5K will take place in Los Angeles on Saturday 26 September 2026. You can run 5 kilometers.