Trail Running calendar near Big Bear Lake 2025-2026

HOKA Kodiak Ultramarathons in Big Bear Lake CA, Oct 9 to 11 2025, is a two day trail festival with scenic mountain and lakeside routes. This UTMB World Series Americas Major awards double Running Stones and qualifying spots to the 2026 Fina..

The Rock It in Chino Hills 5K & 10K is a trail running and hiking event held at Chino Hills State Park in Brea, California. Participants can choose between a 5K or 10K course that showcases the park's stunning and expansive trails, offering..

Challenge yourself on rolling oak and canyon trails at Live Oak Odyssey in O'Neill Regional Park, Trabuco Canyon. Choose a 3 hour or 6 hour fixed time run on a scenic loop with single track, aid station treats, and a friendly trail vibe.

Run under star filled skies on the Cahuilla Reservation in Anza, CA, with distances from 6 hours to 100 miles and a half marathon. This Native organized fundraiser for tribal youth features a scenic 2 mile loop, camping and a peaceful mount..

Race of Legends XC is a cross-country running event held in Los Angeles, California (zip 90065). The race offers a 5K Run, described on the organizer’s site as a "People's race," suggesting an inclusive, community vibe. The event takes plac..

Rnnr FAT ASS 6 Hour in Redlands, California, offers a self-paced endurance challenge on a scenic two-loop course through San Timoteo Canyon. The event is described as unofficial timed, with a central clock but runners tracking their own mil..

Run through the scenic Pasadena foothills on October 19 with 5K, 10K or Half Marathon options over varied trails and climbs. Enjoy chip timing, aid stations, post race goodies and a festive trail vibe.

Caspers Trail Races in San Juan Capistrano on Oct 25, 2025 offers scenic trail courses with options for every level. The race is sold out but a waitlist is open; expect marked routes, course support and event swag for finishers.

Event overview OC Trail Runners Group Run takes place on Saturday, October 25, 2025 in Newport Coast, California. The run is free, social and non-competitive, described as slower-paced and take-it-easy. The stated goal is to spend time outd..

Monster Dash : Irvine, October 26, 2025 The event takes place at Bill Barber Memorial Park in Irvine on Sunday, October 26, 2025. Distances offered: 5k 10k 15k Half marathon Course, rules and logistics The course is an open route on a sha..

Machete Muertos 200 Dia De Los Muertos Ultra hits Lake Perris Oct 29 to Nov 2 2025 with distances from 10 miles to 200 miles. Expect rugged scenic loops, a festive Day of the Dead vibe, camping and on course aid.

Race through iconic Griffith Park on single track trails up to the Hollywood sign, with distances from 10K to 50K to suit all trail runners. Expect stunning city views, well stocked aid stations, and a welcoming morning race atmosphere.

Wildwood Canyon Trail Run (November 1, 2025, Yucaipa, CA) The event is an eight-hour loop race held at Wildwood Canyon State Park in Yucaipa, California. Runners may complete as many laps as they can within the allotted time. Awards and an..

Celebrate the 10th annual Chino Hills Trail Run Series Fall at Chino Hills State Park with challenging 30K and 50K trail routes that support the Discovery Center. Scenic single track, aid stations, and community spirit await.

The 4 Mile Hill Challenge is a rolling, all-trail race held at Debs Park in Los Angeles, with the Audubon Center at Debs Park serving as the start and finish. The event features a 4-mile run/walk/hike and a Run4Paws (Love Your Pet) division..

Trip to: The Red Tail Roost Agua Dulce loop Trail is a 5-mile moderate trail run in the Cleveland National Forest near Mt. Laguna, California. The course winds through peaceful, wooded terrain that may be icy or snowy in late fall, so rider..

Event The Boundiful Endurance Runs is scheduled for November 29, 2025, at Washburn Ranch in Hemet, CA. The event offers multiple race formats and timed-duration events. 100m Relay Event 24hrs 12hrs 6hrs 3hrs Course and support The course..

The Fremont Canyon 28k Trail Run is an exciting running event taking place in Irvine Regional Park, Orange, California. Scheduled for December 6, 2025, this challenging 28k (17.5 miles) course features fire roads with an elevation gain and..

The Tenth Annual Keepin' It Rural 5K/10K Trail Race and Festival takes place at the scenic Elfin Forest Recreational Reserve in north San Diego. This unique event features chip-timed races for both 5K and 10K runners, with a special course..

Event details The Dixon Lake 10/10 Trail Race is scheduled for December 13, 2025, at El Caballo Park, 3450 E. Valley Parkway, Escondido, CA. It is the 5th annual running of this event and is an ERS Championship qualifier for all distances...