Trail Running calendar near Brea 2026-2027

A 5k trail run at Black Star Canyon in Silverado, California, with mixed fire road and single track, 390 ft elevation gain, one aid station, a cupless policy, and pre-run access restricted to authorized days.

Experience the natural beauty of the Angeles National Forest at the Pacifico Ultra. Runners can choose between 50k and 21k distances on mountain trails this May.

Experience the scenic bridle trails of Rolling Hills Estates in this annual 5K and 10K run and walk. Starting at Ernie Howlett Park, participants enjoy a trail route through beautiful local landscapes with awards for top finishers.

The Malibu Canyon Trail Races offer five distances on the trails of Point Mugu State Park in Malibu. Choose from a 100K, 50 mile, 50K, 30K, or half marathon challenge.

The inaugural Fullerton Fit 5K Trail Run offers a scenic dirt trail course through the Brea Dam area. The event also includes a Health & Wellness Fair with local vendors and food trucks. Registration includes a shirt, medal, and other race..

Experience a scenic trail race through the iconic landmarks of Griffith Park in Los Angeles. Choose between a five person marathon relay or an individual 8K loop featuring live music and full course support.

The 30th annual Holcomb Valley Trail Run returns to Big Bear Lake in June 2026. The weekend features a multi-day stage race and single-day distances from 5 to 33 miles on mountain trails. Registration opens in January with early bird pricin..

Join the Phoenix Rising event at Griffith Park in Los Angeles for a variety of distances on a scenic dirt trail course. Enjoy a relaxed racing experience with finisher medals and aid stations included for all participants.

The Old Zoo Half Marathon offers a half marathon and a 12K on scenic, flat trails starting at the historic Old LA Zoo. Runners receive a unique elephant finisher medal and other amenities. Early registration is advised as space is limited.

The Orange Curtain Endurance Run in Cerritos offers a weekend of diverse distances, from a 10K to 100K and timed events. The flat, certified course on a bike path is a Boston qualifier for the marathon. The event features multiple aid stati..

Tough Topanga is a classic trail run in Topanga State Park, featuring a rugged 10k and a new 15k course. With a $2,500 prize purse and a festive finish line, it's the first race in the Bulldog Challenge Series. A non-timed hike and a kids'..

Celebrate the legacy of Title IX in Yorba Linda. Run or walk a moderate 5K on the El Cajon Trail with the family, strollers, and dogs. After the race, visit the vendor fair and explore awards for various age groups.

A 5k trail run at Gypsum Canyon Wilderness on June 24, 2026 over fire roads and single track with about 350 ft of elevation gain. One aid station at mile 2.2 and a cupless race policy.

Experience a weekend of community and trail running in the Angeles National Forest. Challenge yourself to complete multiple laps of a scenic 4.16 mile loop over six hours while enjoying a supported camping experience.

Celebrate the 42nd Anniversary of this Independence Day tradition featuring flat courses along a festive parade route. Enjoy a post race expo with vendors, finisher medals, and free treats for all participants in Newhall.

The Mt. Baldy 5000 is a tough, scenic 5K uphill run at Mt. Baldy Resort. After finishing at the Top of the Notch, runners can enjoy a BBQ dinner and drinks before a chairlift ride back down. It's billed as a unique summer mountain party.

Into the Wild is a 5k trail run at Saddleback Wilderness on July 15, 2026, over fire roads and single track with 300 ft of elevation gain. Entry is limited to 150 runners and there is no race day registration.

The Harding Hustle offers 50K, 30K, and 15K trail races on the Harding Truck Trail in Orange County's Santa Ana Mountains. This cupless event features challenging climbs, descents, and is known for its heat. Parking is not allowed at the st..

Tough Mugu The Tough Mugu is a trail running event offering two distances: a 25 km trail and a 10 km trail. It is part of the Bulldog Challenge Series of races. The event is located at La Jolla Canyon in Point Mugu State Park, Malibu, Calif..

Join a community run through the dirt trails of Griffith Park in Los Angeles. Choose between 5k, 10k, 15k, or half marathon distances and enjoy a relaxed racing environment with finisher medals and free photos.