Trail Running calendar near Big Bear 2026-2027

Join OC Trail Runners for a free social trail run at El Moro and Laguna Coast Wilderness Park in Newport Beach, led by an Aravaipa rep. About 7.5 miles with rocky sections, so bring hydration and stay after for snacks and a raffle.

Run rugged trails through the restored Calico Ghost Town and Calico Mountains in a scenic 30K or 50K. USATF sanctioned, it blends Mojave Desert history with off road trails and runs Jan 25, 2026.

Run scenic, rolling trails through Escondido's Daley Ranch with a rugged 50K two loop challenge or a single loop half marathon. Both races start and finish at Dixon Lake with stocked aid stations and SoCal Ultra Series points.

Run through an active limestone quarry at the Cemex Quarry Quest 5K in Rialto, where rugged terrain and towering industrial equipment create a thrilling backdrop. Enjoy a memorable race while supporting cancer awareness and fundraising.

Explore oak and chaparral trails in the Santa Ana foothills at the Whiting Ranch Trail Races. Choose 6k, 10k, half marathon or 30k, enjoy marked, supported courses, event swag, and a post race beer from Docent Brewing.

Challenge yourself at the Billy Goat Mountain Climb on April 4, 2026 in Cleveland National Forest near Silverado CA. Choose the 17 Miler Silverado Loop, Half Marathon or 10K and tackle rugged trails with big climbs and creekside scenery.

Hit the trails at Crystal Cove for Rock It in El Moro Canyon on April 4, 2026, choose a scenic 6K or challenging 10 Miler with climbs, descents and Pacific Ocean views. Run or hike, and enjoy a shirt, race photos and a finisher medal.

Enjoy scenic single track and lake views at Bedrock Valley Trail Runs, April 11 and 12 at Diamond Valley Lake Marina. Choose from marathon to stroller 5K plus gravel bike options, bring your own hydration and earn finisher swag.

Badwater Salton Sea is an epic 81 mile team ultra from the Salton Sea to Palomar Mountain, gaining over 9,000 feet across desert roads and single track. Teams of two or three run together through extreme heat and wildly variable conditions.

Take on rugged single track and sandy climbs at the Annual NATRO@NOLI Indian School Trail Races in San Jacinto, CA. Marathon, Half, 5k and Kids 3k distances, limited spots, with proceeds supporting Noli Indian School.

Machete Trail Madness at Lake Perris on April 25, 2026 offers 10K, 50K and 100K trail options over rugged lakeside loops. Camp with the group, use staffed aid and grab free pro photos of your effort.

O'Neill Park Trail Races in Trabuco Canyon on May 16, 2026 invites trail lovers to run through oak and sycamore lined canyons. Choose from 50k, marathon, 30k, half marathon or 10k for a challenging and rewarding day on scenic single track.

Race the 10K Spartan Trail at Big Bear on May 17, 2026, across technical singletrack in high altitude pine forest with sweeping Southern Sierra views. The weekend includes Spartan obstacle races and a GOVX service member discount.

Join the 17th Nanny Goat May 23 to 24 in Riverside for looped one mile laps on a flat ranch course with camping, swimming and family friendly amenities. Options span 3 hour to 100 mile plus a 24 hour relay with on site support.

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.

Pacifico Ultra is a fully supported trail race near Palmdale CA with a challenging 50k and half marathon across technical singletrack and mountain roads. Expect high elevation, aid stations, shuttle service and a true wilderness vibe.

Run Fullerton's inaugural 5K on dirt trails through Brea Dam and along the tennis center and golf course. Afterward enjoy a Health and Wellness Fair with local vendors, fitness demos and food trucks.

Run the scenic Holcomb Valley Trail Run around Big Bear Lake on courses of 33, 14, or 7 miles along the Pacific Crest Trail. Enjoy rugged mountain views while supporting local volunteer search and rescue.

The Mt. Baldy 5000 is a scenic mountain 5K that climbs almost entirely uphill to a sunset finish with sweeping mountain views and spectator friendly sections. Post race BBQ, live music and a chairlift ride cap the evening.

Challenge yourself on the scenic Harding Hustle in the Santa Ana Mountains near Silverado, CA, choosing 50K, 30K or 15K on rugged dirt roads. Enjoy staffed aid stations, chip timing and finisher awards while tackling big climbs and July hea..