Trail Running calendar near Big Bear Lake 2025-2026

We have found 51 Trailruns within 80 miles of Big Bear Lake. See below where and when you can find the races.

Hit the trails at Crystal Cove for Rock It in El Moro Canyon on April 4, 2026, choose a scenic 6K or challenging 10 Miler with climbs, descents and Pacific Ocean views. Run or hike, and enjoy a shirt, race photos and a finisher medal.

Two days of scenic trail runs and gravel rides at Bedrock Valley Trail Runs, April 11 and 12, 2026 at Diamond Valley Lake Marina in Hemet, CA. Family friendly with kids and stroller runs, medals and finisher shirts, bring your own hydration..

Badwater Salton Sea is an epic team ultramarathon from the Salton Sea to Palomar Mountain, mixing road and single track through desert and mountain scenery. Teams of two or three tackle 81 miles in a small, supported field.

Run the Natro Noli trail race on Soboba Reservation in San Jacinto CA with marathon, half, 5k and kids 3k on scenic rugged single track. Limited to 100 runners and raising funds for a Noli student scholarship, with shirts and awards.

Machete Trail Madness 100k at Lake Perris on April 25, 2026 offers 10k, 50k and 100k trail races on very technical terrain with steep climbs and stunning lake views. Camp at the start, enjoy aid stations and free race photos.

May 2026

Run the scenic O'Neill Park Trail Races in Trabuco Canyon with distances from 10k to 50k through oak and canyon singletrack. Expect rugged trails, great views and small town race vibes with on site parking and bib pickup options.

Run the 10K at Big Bear Mountain Resort through high altitude pine forest on technical singletrack with Sierra views, wildflowers and wildlife. The weekend also features Spartan obstacle races and team starts.

Nanny Goat is a Memorial Day weekend multi distance ultrarun at a Riverside horse ranch where you run timed laps on a flat 1 mile loop. Camping, family friendly amenities and medals for every runner who completes at least one lap.

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.

Run scenic mountain trails in the Angeles National Forest near Palmdale with 50k and half marathon options. Expect technical singletrack, big elevation and full race services including finisher medals, aid stations and finish line tacos.

June 2026

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.

Take on the scenic Griffith Park trails with a team marathon relay or an individual 8K in Los Angeles on June 7, 2026. Enjoy live DJs, food trucks and a finisher shirt and medal at this Runner's World recommended event.

Join Phoenix Rising on June 13 at Griffith Park with distances from 5k to half marathon on scenic dirt trails. Enjoy custom finisher medals, goodie bags, free photos and videos, plus aid stations and stroller friendly routes.

Run the Old Zoo Half Marathon in Griffith Park, LA, on scenic, mostly flat trails with both a half marathon and 12K option. Limited spots after last year sold out, so grab your entry for a festive race, finisher medal and post race goodies.

July 2026

Take on the Mt. Baldy 5000, a scenic, mostly uphill mountain 5K at Mt Baldy Resort that tests your legs and rewards you with great views. Celebrate at the Top of the Notch with BBQ, live music and a relaxing chairlift ride back.

Run the Harding Hustle in Cleveland National Forest near Modjeska Canyon on July 18, 2026. Choose 15K, 30K or challenging 50K along scenic truck and forest roads with aid stations and a cupless, low support wilderness vibe.

Hot to Trot at Griffith Park Crystal Springs in Los Angeles offers 5k, 10k, 15k and half marathon looped courses for runners and walkers, with stroller friendly routes and support for pacers and crews. Finishers get a custom medal, free pho..

The Pasadena SoCal Summer 12K will take place in Pasadena on Friday 24 July 2026. You can run between 6 and 12 kilometers.

Run under a full moon on the scenic Elder Creek Night Runs near Anza, California, with a 4.6 mile loop through manzanita, rock formations and Cahuilla Mountain views. Limited to 200 runners, multiple loop distances from 9 miles to 50K.

August 2026

Run a 5K, 10K or Half Marathon around scenic Green Valley Lake, tackling a lake loop and a challenging climb to forest viewpoints on mixed paved and dirt roads. Enjoy post race festivities while supporting The Children’s Forest.