Trail Running calendar near Yucaipa 2026-2027

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.

This 5K run and walk supports the Northeast Division Youth Programs. The event takes place at Griffith Park in Los Angeles, with awards for top finishers and custom medals for the first 500 participants.

A 100 mile mountain loop near Lake Cuyamaca, CA on May 1 and 2, 2026. Mostly single track trails with about 15,400 feet of climb and a 32 hour limit. Crewed and Solo divisions are offered.

Trails n Vines Wine Run takes runners through the scenic vineyards of Orfila Winery in Escondido. Choose from 3, 6, or 9-mile trail distances and enjoy wine tastings after the race. Participation is limited to 400 runners.

An annual 10K trail event in Glendale with a climb to 2,536 feet and panoramic views of the L.A. Basin and San Gabriel Mountains. Produced by the City of Glendale and benefiting the Glendale Parks and Open Space Foundation.

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.

A trail race in the Angeles National Forest offering a 50k, half marathon and 21k route across technical singletrack and ridgelines, with aid stations, finish-line food and massage, awards, and shuttle-served parking.

The Hills Are Alive 10K Run takes place on scenic bridle trails in Rolling Hills Estates. All participants get a t-shirt and medal, with trophies for the first-place winners. Registration opens in February 2026.

The inaugural Fullerton Fit 5K Trail Run offers a scenic dirt trail course through the Brea Dam area. The event also includes a Health & Wellness Fair with local vendors and food trucks. Registration includes a shirt, medal, and other race..

A trail relay and 8K at the Lower Old Zoo in Griffith Park on June 7, 2026, offering chip timing, finisher medals, three aid stations, DJs and food trucks.

Holcomb Valley Trail Run returns to Big Bear Lake in June 2026 with new South Shore courses, multiple single day distances, and a TransRockies three day staged race during the Big Bear Peaks and Pines weekend.

Run through scenic trails at the Old Zoo Half Marathon. Choose from a relatively flat half marathon or 12K course, starting and finishing at the historic Old Los Angeles Zoo. All finishers receive a custom elephant-themed medal.