Trail Running calendar near Big Bear 2025-2026

Chingona Fest Campout is a weekend trail-running and camping event in Pearblossom, California, held at a Group Campground in the Angeles National Forest. Titled “Chingonas on the Run: Camp & Loop,” the fundraiser invites participants to complete as many 4.16-mile loops as possible in six hours, with..

Angeles National Forest Trail Race takes place in Mt. Wilson, California, with start and finish at the Mt. Wilson Observatory.The event offers two ultramarathons: 25K (about 3,500 feet of elevation gain) and 50K (about 7,000 feet), routed through the San Gabriel Mountains. The course is described as..

Mount Wilson Trail 5K Recovery Run is a road 5K and a Kids Fun Run held in Sierra Madre, California, at Kersting Court. The 2025 event moves to Saturday, October 4, featuring vendor booths at Kersting Court, a photo booth, and a beer garden to celebrate Octoberfest. The race aims to unite the commun..

Located in Big Bear Lake, California, HOKA Kodiak Ultra Marathons by UTMB offers a two-day festival vibe in a rustic mountain town near Los Angeles. The event features five races: 100M (160 km, 5200 m gain), 100K (100 km, 3050 m), 50K (50 km, 1500 m), 21K (20 km, 600 m), and 10K (10 km, 280 m). Cour..

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 scenic views and a tranquil outdoor experience. The race in..

Live Oak Odyssey is a fixed-time trail running event at O'Neill Regional Park in Trabuco Canyon, CA (30892 Trabuco Canyon Road). The event offers two timed options: 6-hour fixed-time event 3-hour fixed-time event Each lap is approximately 2.75 miles with about 500 feet of vertical gain per loop...

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 miles, and participants may race for up to six hours. The atmos..

Set on the Cahuilla Indian Reservation in Anza, California, Cahuilla Rez Ultra is a Native‑organized fundraiser for the tribe’s Youth and Family Programming. Runners can choose from a 100‑mile option, 24, 12, and 6‑hour races, a half marathon, and a Tribal Member 5k. The course is a scenic 2‑mile lo..

The Pasadena Trail Half Marathon, hosted by Pasadena Running Company, takes place at Hahamongna Watershed Park in Pasadena, California. This event offers three distance options: 5K, 10K, and a challenging half marathon. The half marathon course spans 13.1 miles with an elevation gain of 1,855 feet,..

Casper's Trail Races on Oct 25, 2025, take place in San Juan Capistrano, California, offering trail distances: 10K, 13.2 miles, 30K, marathon, and 50K. The event, hosted by KHraces, aims for a well-supported, well-marked experience with swag, highlighting Orange County’s fall trail atmosphere. While..

The event takes place at Bill Barber Memorial Park in Irvine on Sunday, October 26, 2025. Distances offered: 5k 10k 15k Half marathon The course is an open route on a shared path and uses out-and-back loops that will be marked. Specific loop formats listed are: 5k as an out-and-back route, 10k a..

The Machete Muertos 200 is an ultramarathon event held at Lake Perris, California, featuring multiple race distances including 10, 20, 50, 100, and 200 miles, plus a 20-mile ruck division. The course consists of challenging loops with significant elevation gains—2,300 feet per lap for shorter distan..

Wildwood Canyon Trail Run takes place in Wildwood Canyon State Park, Yucaipa, California. The event features an 8-hour loop course: a 3.6-mile loop with roughly 600 feet of vertical gain per lap, offering rugged canyons, meadows, and oak-studded terrain. Runners may complete as many loops as time al..

The Chino Hills Trail Run Series, held at Chino Hills State Park in Brea, California, offers challenging trail races in scenic natural surroundings. The fall event features 30K and 50K distances, with well-marked courses that traverse hilly terrain and showcase native plants and wildlife. Aid statio..

Boundiful Endurance Runs take place at Washburn Ranch in Hemet, California, featuring a one-mile loop on a 100% hardpacked dirt surface through a Southern California fruit and nut farm. The event offers multiple race options including 3, 6, 12, and 24-hour runs, a 100-mile solo challenge, and relay..

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 loss of 2860 feet, making it suitable for experienced runner..

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 for hikers. The race begins and ends at the Olivenhain Dam,..

Crystal Cove Trail Run, the SoCalTrail season finale, unfolds in Crystal Cove State Park, El Moro, Laguna Beach, just minutes from Orange County’s beaches. Runners choose between the El Moro 15k (9.35 miles with 1,647 ft of elevation gain) and the Cut-Across 6k (4.1 miles, 696 ft), plus a Kids 1k co..

Run for a Claus presented by Optima Tax Relief is an annual charity run in Irvine, California, hosted on the University of California, Irvine Ring Road campus. The event features a 5K and a Kids 1 Mile Run/Walk, with virtual 5K and virtual 1 Mile options for those who prefer to participate remotely...

Ring in the New Year is a running event at Whittier Narrows Recreation Area on Sunday, January 4, 2026. The course uses marked out-and-back loops on the beach path and is an open course shared with other pedestrians, runners, and cyclists. An aid station is located at the turnaround at the start/fi..