Trail Running calendar near Big Bear 2026-2027

Run a unique 5K through an active limestone quarry surrounded by massive machinery. The event offers separate categories for the public, Cemex employees, and school teams. All proceeds benefit local school STEM programs.

Trail races at Whiting Ranch Wilderness Park on March 21, 2026 feature 6k, 10k, half marathon and 30k courses through oak-filled foothills with marked support and event swag. Finishers are offered a complimentary beer with a meal at a local..

A rugged high desert half marathon and 10K in Pioneertown with views of the Sawtooth Mountains. Proceeds support the John Wayne Cancer Foundation and entries include chip timing, aid stations, a finisher mug and a finisher shirt.

A loop-based trail endurance event in Fallbrook, CA on March 21, 2026 offering 12 hour solo, 12 hour team, and 6 hour solo formats. Each 4 mile loop gains about 1,300 feet and a stocked aid station supports every lap.

This trail race climbs into the Cleveland National Forest near Silverado, California. Runners can choose from a 10K, half marathon, or a challenging 17-mile local loop. All courses feature significant elevation gain and well-placed aid stat..

Trail run and hike options of 6K and 10 mile take place in El Moro Canyon at Crystal Cove State Park on April 4, 2026. Registration includes race photos, a shirt, and a finisher medal; park parking is $15 per vehicle.

Two days of trail runs and gravel bike rides at Diamond Valley Lake Marina featuring marathon, shorter trail distances, youth and stroller events, plus gravel rides around the lake and finisher shirts and medals for multiple races.

Retro themed runs at Bolsa Chica State Beach on April 12, 2026 featuring 5K, 10K, a half marathon and a kids dash, plus a costume contest, live DJ, vendors, chip timing and oceanfront course views.

An 81 mile team ultramarathon from Salton City to Palomar Mountain mixing road and single track through Anza-Borrego State Park. Teams of two or three run together; limited entry and prior ultramarathon experience are required.

This trail running event on the Soboba Indian Reservation features a Marathon, Half Marathon, 5k, and Kids 3k. Courses include varied terrain with significant elevation gain. Proceeds support Noli Indian School scholarships.

A looped trail event at Lake Perris offering 10k, 50k and 100k with significant elevation gain, aid stations, group camping, and double-challenge buckles.

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.

A 13.5-mile trail race on fire roads and single track in Limestone Canyon with 2,719 feet of elevation gain, two aid stations, cupless policy, and limited packet pickup options.

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.

A multi-distance trail event on May 16, 2026 in O'Neill Regional Park, Trabuco Canyon, running through oak and sycamore woodlands and native coastal scrub. Parking is $5; no refunds are offered but rollovers are allowed for weather or fire..

This 10 km trail run takes place in Big Bear, California, featuring scenic but technical mountain trails at high altitude. It is scheduled for May 17, 2026, and is part of a Spartan festival weekend.

A multi-distance ultrarunning event on a flat one mile loop at a private ranch in Riverside, CA. Options range from 3 hour races to a 100 mile solo and a 24 hour relay, with camping and on site support.

The Mount Wilson Trail Race returns May 23, 2026 with an 8.6 mile out and back from Kersting Court to Orchard Camp, plus a children's Fun Run; the event supports volunteer trail repair through the Fletcher Trail Maintenance Fund.

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.

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.