Trail Running calendar near Big Bear 2026-2027

A two day trail festival in Big Bear Lake, California featuring five distances and varied terrain around the lake. The 2026 event is the UTMB World Series Americas Major and serves as a dual qualifier for UTMB Finals and Western States.

Experience remote mountain running in the Cleveland National Forest with three distances featuring significant elevation and coastal views. The event offers well supported aid stations and serves as a qualifier for the Angeles Crest 100.

An obstacle event in Phelan, California where people and their dogs navigate a 20 acre course with over 20 obstacles, including mud, water and problem solving. The program also offers a 1k walk/run and a volunteer option.

A multi distance event on the Cahuilla Indian Reservation in Anza, California. It uses a runnable 2 mile loop for fixed time races and a 100 mile event, with camping, limited RV spots and a real food aid station, fundraising for tribal yout..

Experience scenic singletrack and natural terrain at Hahamongna Watershed Park in Pasadena with options for a trail half marathon, 10K, or 5K on Sunday, October 18, 2026. Perfect for trail runners seeking a challenging yet runnable course.

Trail individual races at Los Coyotes Reservation October 23-24, 2026 offering a 3.1 mile Yellow Loop and timed 6 hour and 24 hour ultras on desert and mountain trails, with camping and festival-style amenities at Ragnar Village.

A team trail relay at Los Coyotes Reservation on October 23 and 24, 2026 featuring desert and mountain single track, a 112.8 mile course shared across teams, and on site camping plus glamping at Ragnar Village.

A trail running event at Caspers Wilderness Park on October 24, 2026, offering 10k, half marathon, 35k, marathon and 50k courses. Courses are described as marked and supported, with an athlete guide and past results available.

Run an 8-hour loop course on a scenic 3.7-mile trail in Wildwood Canyon State Park. The event features an aid station, vendors, and live music. An after-party follows at a local brewery.

Machete Muertos 200 is a multi-distance trail event at Lake Perris, CA from October 28 to November 1, 2026. The 200 mile race includes over 44,000 feet of elevation and a 96 hour cutoff; camping and cash prizes are provided.

Celebrate Halloween with a timed trail run at Crystal Cove State Park in Laguna Beach. Choose between a 4 hour or 6 hour endurance challenge set against a scenic coastal backdrop.

Trail races in Silverado, CA run out of Black Star Canyon with a marathon, a new 25k, a half marathon and a 10K. Routes follow creekside trails, switchbacks and ridge sections with multiple aid stations.

Experience a fixed time trail challenge at O'Neill Regional Park. Run as many 2.75 mile loops as possible through scenic canyons during an 8 hour, 6 hour, or 3 hour session.

This 21 mile trail run near Yucaipa is postponed from September 2026. The challenging course features over 4,300 feet of climbing on Crafton Hills terrain, with aid station support.

Experience an obstacle course race at Oak Canyon Park featuring a 5 km course with over 15 obstacles and a Mini Monkey Run for kids. Enjoy a festive atmosphere with music, food, and free spectator access.

Celebrate Thanksgiving morning with a scenic 5K or 10K run along Huntington Beach to fund clean water projects for communities in need around the world.

One-mile loop ultrarun at Washburn Ranch in Hemet, CA offering 3h, 6h, 12h, 24h, 100 mile (31 hour) and relay options. Hardpacked dirt surface, chip timing with live tracking, on-course aid, camping, and continuous food service.

A 28k trail run in Fremont Canyon at Irvine Regional Park featuring about 3800 feet of elevation change and four aid stations. The course runs on fire roads, is cupless, and participants are asked to carry personal hydration.

A last person standing race in Yucaipa, CA, where runners complete 4.16-mile loops until only one remains. The event, scheduled for December 2026, features a Krampus-themed challenge of endurance.

Trail races at Crystal Cove State Park in Laguna Beach offering 15K, 6K and a Kids 1K loop. The El Moro 15K features technical trail sections and a $2,000 prize purse, with shirts, finisher medals, free photos and post-race amenities.