Trail Running calendar near Big Bear 2026-2027

A high-country trail event in the Angeles National Forest on May 30, 2026, offering 50k and 21k courses across Pacifico Mountain with multiple aid stations, a finish festival, awards and Sterling Silver Tickets for top 50k finishers.

A free social, non-competitive group run in Newport Coast on May 30, 2026, organized by Aravaipa and OC Trail Runners. The route is about 5.5 miles with 500 feet of gain, includes rocky sections, and finishes with snacks and a raffle.

The City of Fullerton’s inaugural Fullerton Fit 5K Trail Run takes place June 6, 2026 on a dirt course near Brea Dam, accompanied by a Health & Wellness Fair with vendors, demonstrations, and food trucks.

An unsanctioned, route-choice run in Chino Hills on June 6, 2026 covering more than 4 miles over gravel and trail. Runners navigate four checkpoints on an open course and compete for cash prizes.

A multi day trail running weekend in Big Bear Lake from June 12 to 14, 2026 featuring a TransRockies style three day stage race and single day events from a Vertical Stage to 33 miles with notable elevation gain.

Los Mugrosos 5K in South El Monte on June 14, 2026 features a scenic single loop trail and a kids dash for ages 2 to 12. The main 5K includes a shirt and finisher medal and is limited to 90 runners.

Orange Curtain Run in Orange County, California offers a range of distance and timed events from 10K to 100K on mixed pavement and bike path surfaces. The event is scheduled for June 19 and 20, 2026 and includes a certified marathon.

Nixon 5K for Title IX on June 20, 2026 in Yorba Linda features a 5K and a 1K kids run along El Cajon Trail. The family-friendly event includes commemorative medals, race bibs, a 5K race shirt, and a Nixon Library admission.

A 5k trail run at Gypsum Canyon Wilderness on June 24, 2026 over fire roads and single track with about 350 ft of elevation gain. One aid station at mile 2.2 and a cupless race policy.

A weekend fundraiser in Pearblossom that pairs camping with a six hour looped trail challenge summiting Mount Hillyer, offering aid stations, meals, free photos and a finisher's medal in an inclusive women focused space.

A mountain 5k up Mt. Baldy Resort on July 11, 2026, with about 1,500 feet of gain and steep singletrack early on. Finishers reach the Top of the Notch for a BBQ, live music, and a technical trucker hat.

Into the Wild is a 5k trail run at Saddleback Wilderness on July 15, 2026, over fire roads and single track with 300 ft of elevation gain. Entry is limited to 150 runners and there is no race day registration.

Trail race in Cleveland National Forest near Silverado, CA, with 50K, 30K and 15K out-and-back routes on the Harding Truck Trail, substantial elevation gain, staffed aid stations, mandatory shuttle access and hot-weather conditions.

Out and back loop races at Whittier Narrows on July 19, 2026 include 5k, 10k, 15k and a half marathon. Registration features medals, photos, and results posted within 12 to 24 hours.

Experience a unique desert night run under the Full Buck Moon on a scenic looped course. Choose between distances ranging from 9 miles to a 50k ultramarathon through manzanita groves and single track trails.

An evening trail event in Pasadena's Lower Arroyo Park offering 6K and 12K routes with chip timing and aid stations. The finish includes tacos and drinks and runners receive a commemorative shirt and wooden medal.

Experience a scenic mountain race through the pine forests of the San Bernardino National Forest. Run alongside the lake and onto forest trails with distances including a 5k, 10k, and Half Marathon.

Experience trail running in Orange County with several race distances ranging from a 5k to a 6 hour timed challenge. Navigate a scenic 3.3 mile looped course with multiple early bib pickup options available.

A one mile uphill race at Snow Summit in Big Bear Lake with a 1,000 foot climb starting near 7,000 feet elevation. The event raises funds for Big Bear High School cross-country through the BBHS Bear Backers 501(c)(3).

A 5k trail run at Red Rock Wilderness near Silverado, CA featuring fire roads and single track, 300 feet of climbing, one aid station, a cupless policy, and no pets allowed.