Trail Running calendar near Los Angeles 2026-2027

Multi distance trail running and gravel bike events at Diamond Valley Lake in Hemet, California. Routes include lakeside loops, out and back courses, a stroller 5K and a kids fun run.

Trail races at Noli Indian School on the Soboba Reservation offer marathon, half marathon, 5k and kids 3k options with Native and Open divisions. The event is limited to 100 entrants and includes finisher awards and early T shirts.

A long-running multi-distance event in Agoura Hills with half marathon, 10K, 5K, mile and multi-race challenges, scenic courses through the Santa Monica Mountains, and a post race party.

Leona Divide on April 17, 2027 in Lake Hughes, CA offers trail races from 30K to 100 miles, with the 100M and 100K as Western States qualifiers and the 50M awarding AC100 Sterling Silver Tickets.

A multi-distance trail event near Ojai, CA from April 30 to May 2, 2027, featuring high-elevation courses, strict qualification standards for ultras, a 150-person field limit, and no refunds or transfers.

A multi-format trail event in Placerita Canyon offering looped courses, multiple distances and time categories, team relays, camping, cupless aid stations, chip timing, and finisher swag on May 1, 2027 in East Walker Ranch Open Space.

A scenic 5k at Whittier Narrows Park with live mariachi and banda music, water stations, chip timing, and a post-race festival featuring tacos, a beer for 21+, a medal, and a t-shirt.

Trail event at Crystal Cove State Park on May 8, 2027 with 50K, 25K and 5K routes on dirt roads and single track, ocean views, participant shirt and finisher mug, supporting the John Wayne Cancer Foundation.

A two-day Spartan weekend at Big Bear Mountain Resort featuring Sprint, Super and Beast obstacle races at high altitude, plus a kids race and spectator options. The layout includes long climbs and descents and a Trifecta opportunity.

O'Neill Park Trail Races in Trabuco Canyon, California, feature multiple trail distances on May 15, 2027. Registration opens December 1, 2026 and the event has a no-refund policy with rollover options if canceled for weather or fire.

A scenic trail run at Snow Summit in Big Bear Lake, featuring flowy singletrack, technical climbs and descents, Southern Sierra views, wildlife, wildflowers, and a Trail 10K distance on May 16, 2027.

A high country trail event in the Angeles National Forest offering a 50k and a 13.1 mile half marathon, substantial elevation, multiple aid stations, finish festival amenities and a $500 course record bonus for the 50k.

A trail event in Griffith Park offering a 26.2 mile team marathon relay and a single-loop 8K. Features chip timing for the relay, aid stations with medical staff, shirts, medals, prizes, food vendors and live DJs.