Trail Running calendar near Brea 2026-2027

On April 11, 2026 in Agoura Hills the Nature Made Great Race offers trail and road options from 1 mile to a half marathon plus combo challenges, scenic Southern California routes, and a large post-race party at Chumash Park.

Trail runs and gravel rides at Diamond Valley Lake Marina in Hemet CA on April 11–12, 2026, with multiple distances for adults and kids, a stroller-only 5k, cupless aid stations, and finisher shirts and medals for marked run events.

A trail race day in Lake Hughes, CA on April 18, 2026 offering distances from 30K to 100 miles; the 100K and 100M are Western States qualifiers and the 50M awards AC100 Sterling Silver Tickets.

Take on rugged single track and sandy climbs at the Annual NATRO@NOLI Indian School Trail Races in San Jacinto, CA. Marathon, Half, 5k and Kids 3k distances, limited spots, with proceeds supporting Noli Indian School.

Challenge yourself on scenic ocean view trails above Malibu at the Point Mugu Trail Run, with a half marathon and a 10k through Sycamore Canyon and up Fireline Trail. Enjoy a finisher medal, free photos and a post race beer garden.

Machete Trail Madness at Lake Perris on April 25, 2026 offers 10K, 50K and 100K trail options over rugged lakeside loops. Camp with the group, use staffed aid and grab free pro photos of your effort.

Run the scenic Las Virgenes Canyon Ultra Trail Races in Woodland Hills, CA, offering distances from 6K to 100K across challenging trails with rewarding climbs and views. Fully supported course and lively post-race food, music, and medals ma..

Tackle the Shadow Strike Unsanctioned Run in Chino Hills, a 4+ mile all terrain challenge across trails, gravel and open streets. No clocks, just navigation to checkpoints and cash prizes for top finishers and random participants.

Aut2Run for Autism in Camarillo on April 26, 2026 features multiple distances from 1 mile to a 15K and a virtual option. All proceeds support Autism Society Ventura County programs and community services.

A trail run through Orfila Vineyards in Escondido with 3, 6, and 9 mile options, three wine tastings for participants over 21, a kids dash, and a post-race private tasting and food truck on site.

A trail run at Crystal Cove State Park on May 9, 2026 offering 50K, 25K and 5K distances with ocean views, aid for finishers, podium awards, and proceeds benefiting the John Wayne Cancer Foundation.

Trail races through O'Neill Regional Park in Trabuco Canyon with distances from 10k to 50k. Parking requires a $5 pass and registration is scheduled from October 1, 2025 through May 1, 2026.

Run into the 1980s with The Cobra 5Kai, 10Kai & Half Miyagithon along the LA River Path in Canoga Park. Costume friendly, with throwback tunes, a finisher’s medal and plenty of crowd energy; crane kicks encouraged.

Gorgonio View Trail Run at Big Bear Mountain Resort on May 17, 2026 features a Trail 10K on singletrack through pine forest with technical climbs, wide mountain views, and team entry options.

Join the 17th Nanny Goat May 23 to 24 in Riverside for looped one mile laps on a flat ranch course with camping, swimming and family friendly amenities. Options span 3 hour to 100 mile plus a 24 hour relay with on site support.

Return to Hahamongna Watershed Park on May 24, 2026 for a day of team relays and solo challenges. Choose a 50 km relay with teams of up to five, a solo 50 km ultra, or a 10 km fun run amid scenic Pasadena trails.

Forever Brave at West Creek Park in Valencia CA on May 24, 2026 invites runners from 5k to half marathon on scenic looped trails with aid stations each lap. Finishers get custom medals, free photos, snacks, and fast posted results.

Pacifico Ultra is a fully supported trail race near Palmdale CA with a challenging 50k and half marathon across technical singletrack and mountain roads. Expect high elevation, aid stations, shuttle service and a true wilderness vibe.

A multi-distance trail event in Malibu, California offering 100k, 50 mile, 50k, 30k and a half marathon on single track and fire road through the coastal Santa Monica Mountains.

Run Fullerton's inaugural 5K on dirt trails through Brea Dam and along the tennis center and golf course. Afterward enjoy a Health and Wellness Fair with local vendors, fitness demos and food trucks.