Trail Running calendar near Big Bear Lake 2026-2027

Trail races through O'Neill Regional Park in Trabuco Canyon with distances from 10k to 50k. Parking requires a $5 pass and registration is scheduled from October 1, 2025 through May 1, 2026.

Gorgonio View Trail Run at Big Bear Mountain Resort on May 17, 2026 features a Trail 10K on singletrack through pine forest with technical climbs, wide mountain views, and team entry options.

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.

A trail relay and 8K at Griffith Park on June 7, 2026 featuring a true loop course, chip timing, aid stations, shirts, medals, DJs 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.

Phoenix Rising at Griffith Park in Los Angeles on June 13, 2026 offers 5k, 10k, 15k and half marathon trail friendly courses. Enjoy a marked dirt trail, aid station, finisher medal and free photos in a lively community race.

Run the scenic Old Zoo Half Marathon in Griffith Park, Los Angeles on June 14, 2026, with half marathon and 12K options on mostly flat trail courses. Enjoy a commemorative elephant finisher medal, music and postrace refreshments.

The Orange Curtain will take place in Lakewood from Friday 19 June 2026 to Saturday 20 June 2026. You can run between 10 and 100 kilometers.

Chingona Fest is a two day camping and trail run fundraiser with a timed 6 hour loop challenge and community festivities. Women and those who identify with womanhood are invited to run, camp, and celebrate while supporting Chingonas.

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..

Hit Griffith Park for Hot to Trot on July 18, 2026, and choose a distance from 5k to half marathon on scenic dirt trails. Enjoy aid stations, a finisher medal, photos and postrace snacks as you tackle shared trails under the LA sun.

Night trail running under a full moon on Cahuilla Band land near Anza, California, with scenic single track, rocky views, and manzanita lined loops. Choose distances up to 50K on a looped course with limited entries for an intimate race.

Join the SoCal Summer evening 6K or 12K at Lower Arroyo Park in Pasadena on July 31 2026 and celebrate after with tacos and drinks. Scenic park routes and friendly vibes make this a perfect summer night run.

Run a 5K, 10K or Half Marathon around scenic Green Valley Lake, tackling a lake loop and a challenging climb to forest viewpoints on mixed paved and dirt roads. Enjoy post race festivities while supporting The Children’s Forest.

A looped trail event in Thomas F. Riley Wilderness Park offering distances from 5k to 30k and a six hour challenge. Registration opens February 1, 2026, and every finisher receives a shirt and medal.

A mountain trail race in the Angeles National Forest that climbs from about 6,000 feet to the 10,064 foot summit over roughly seven miles. The event includes aid stations, a race shirt, professional timing and awards.