Trail Running calendar near Brea 2025-2026

Run scenic trails around Diamond Valley Lake at the Bedrock Valley Trail Runs weekend, with distances for all levels plus a kids mile. Finishers get shirts and medals, gravel rides day two, and the event is cupless so bring your own water.

Join the Run4Kids Ultra Running Party in Corona, CA on April 17 and 18, 2026 for a weekend of road and ultramarathon racing. Choose distances from half marathon to 100 mile or try timed events while supporting youth runners.

Run the annual NATRO@NOLI trail race at Soboba with distances from 3k to marathon over hills, sand, single track and stream crossings. Entry is capped at 150, with awards, shirts and proceeds helping a Noli Indian School scholarship.

Test your limits at Leona Divide in Lake Hughes on April 18, 2026, with trail races from 30k to 100 miles. The event features Western States qualifying 100 miles and 100k distances plus athlete guides and on course support.

Run as far as you can in the redwood grove at Carbon Canyon Regional Park in Brea, choosing a 3, 6, or 12 hour timed division. Looping trail laps, stocked aid and finisher shirt and medal make this a scenic endurance challenge.

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.

Run the 10K Spartan Trail at Big Bear Lake on singletrack through high altitude pine forest with technical climbs, descents and sweeping Sierra views. A scenic, challenging mountain course that joins a Spartan Trail weekend of adventure.

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..

Tackle a rugged 50k or enjoy a scenic trail half around Pacifico Mountain, winding through pine forests and ridgelines in Angeles National Forest. Celebrate at the finish with tacos, coffee, music and race photos.

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.

Join the Griffith Park Trail Marathon Relay and 8K for team excitement or a scenic solo run on fire roads and trails. Enjoy chip timing, a finisher medal, live music, food trucks and post race fun plus cash prizes for top finishers.

Run Phoenix Rising at Griffith Park with 5k, 10k, 15k or half marathon options on scenic dirt trails around Crystal Springs. Expect aid stations, finisher medals, free photos and a friendly shared trail with hikers and equestrians.

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..

Join Hot to Trot at Griffith Park on July 18, 2026 for 5k, 10k, 15k and half marathon options on scenic dirt trails. Enjoy aid stations, custom finisher medals, free photos and a friendly community vibe.

Run rugged jeep roads and 4x4 trails in the Cleveland National Forest on July 18, 2026 with 50K, 30K and 15K options. Expect hot, remote July conditions, shuttle access only and a cupless race day.

Run under a full moon on scenic single track and dirt roads around Cahuilla Mountain, with 9 Miler, 13 Miler, 30 K or 50 K options. The looped course offers frequent aid and car access and entries are limited, so grab your spot.

Run scenic 5K, 10K or half marathon around Green Valley Lake with lake loops, forest trails and a steady climb to a sweeping viewpoint. Celebrate after with food, live music and community energy while supporting the Children's Forest.

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..

Run the Ascot Hills Challenge 5K on scenic trails above East Los Angeles with sweeping views of Dodger Stadium and the Hollywood sign. Proceeds benefit Wilson High School fire and police cadet programs and help preserve Ascot Hills Park.

The Angeles Crest 100 is a classic 100 mile point to point through the San Gabriel Mountains, with high alpine ridges, rocky trails and about 21,600 feet of climbing. Scenic and storied, it finishes in Altadena and is a Western States and U..