Trail Running calendar near Whittier Narrows 2026-2027

A mountain 5K, 10K and half marathon around Green Valley Lake, CA, featuring mixed paved and dirt surfaces, multiple aid stations, chip timing, race awards, and proceeds benefiting The Children’s Forest.

Looped trail races at Thomas F. Riley Wilderness Park offering 5k through 30k and a 6 hour event on August 1, 2026; registration opens February 1.

A multi-distance trail event at Malibu Creek State Park featuring 25k, 50k and a three-loop 75k, with fully stocked aid stations, chip timing, finisher medals and post-race food and beverage options.

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.

A free community festival by UltraSignup in Los Angeles featuring a group trail run with 5K and 10K options, an expo with vendors, food, and a raffle. The event is held at A Snail's Pace Running Shop in Chino Hills.

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.

Run into the sunset at Griffith Park. Choose from a 10-mile team relay, a scenic 5K solo race, or a kids' run. The event promises marked trails, panoramic city views, and a lively finish line atmosphere.

A trail event in Topanga on September 19, 2026 offering a 10k race and a non timed 4.5 mile Hiker's Delight through Red Rock Canyon with steep climbs, singletrack, aid stations, shuttled parking, and post race amenities.

Tackle scenic trails and city views at the Ascot Hills Challenge 5K in Los Angeles, with an in person chip timed race and virtual option for remote runners. Proceeds support local schools and park restoration, making every mile count.

A mountain trail race near Mount Wilson in the Angeles National Forest on Sep 26, 2026. Options include a **25K** with about 3,800 ft climb and a **50K** with about 7,000 ft, on singletrack, fire roads and ridge trails.

Trail running at Corriganville Park in Simi Valley with 50K, 30K and 15K routes through Rocky Peak, Las Lljas and Tapo Canyon. The event features varied terrain, aid stations, and a portion of proceeds benefiting the Challenged Athletes Fou..

A seaside themed run in Long Beach offering 5K, 10K, half marathon and family distances with chip timing, free race photos, finish line pizza and a costume contest.

A historic point to point 100 mile mountain race through the San Gabriel Mountains from Wrightwood to Altadena, featuring about 21,610 feet of climb and serving as a Western States and UTMB index qualifier. Lottery entry and qualifier requi..

The Palos Verdes Trails 5K will take place in Rolling Hills Estates on Sunday 4 October 2026. You can run 5 kilometers.

A set of trail races near Silverado, CA offering 50-mile, 50K and 30K courses on remote, technical 4x4 and single-track trails with significant elevation gain, aid stations, mandatory self-sufficiency, and cupless support.

Run through the striking rock formations of Vasquez Rocks on one of four trail distances. The courses range from a scenic 5K to a demanding half marathon with significant elevation. The event provides aid station support and commemorative s..

Experience scenic singletrack and natural terrain at Hahamongna Watershed Park in Pasadena with options for a trail half marathon, 10K, or 5K on Sunday, October 18, 2026. Perfect for trail runners seeking a challenging yet runnable course.

A trail running event at Caspers Wilderness Park on October 24, 2026, offering 10k, half marathon, 35k, marathon and 50k courses. Courses are described as marked and supported, with an athlete guide and past results available.

An 8-hour timed trail run on a 3.7 mile loop with about 600 feet of climb per loop at Wildwood Canyon State Park in Yucaipa on October 24, 2026. Aid stations and vendors are onsite and an after party is held at Hops and Spokes Brewery.

No Name Trail Races in Cheeseboro Canyon near Agoura, California feature a 50k, a half marathon, and a 5k over varied singletrack and fire road terrain, with stocked aid stations, same day results, finisher medals, and post race amenities.