Trail Running calendar near Rancho Santa Margarita 2026-2027

A trail race weekend in Anza Borrego Desert State Park on March 13, 2027, offering 50K, marathon, and half marathon courses with aid stations and on-site campground facilities. Participants receive a tech shirt and a finisher medal.

Timed 6-, 12-, and 24-hour running events at Lake Cuyamaca on a scenic 2 mile loop near Julian, CA, with on-site dining, a store, and camping and RV options.

Tough Mudder Los Angeles on March 20, 2027 at Lake Elsinore Raceway is a mud obstacle event over scrubland and motor-cross terrain. Race options include 15 plus km, 5 to 8 km, Infinity laps, spectator access, and group packages.

Trail running event in Valencia California on 03/20/2027 offering 10K, Half Marathon, and 50K Ultra across hills, ridgelines, and canyon terrain with views of the Santa Clarita Valley.

Scenic high desert running in Pioneertown featuring a chip timed half marathon and 10K that supports the John Wayne Cancer Foundation. Runners receive a Grit Series shirt in their packet and finisher mug and shirt at the finish.

A mud and obstacle event at Lake Elsinore Raceway on March 20, 2027 offering 15K and 5 to 8K courses, an Infinity multi lap option, spectator access and group packages, with finisher medal, shirt, headband and drink included.

Two days of trail runs and road and river bike rides at Griffith Park supporting Streets Are For Everyone's road safety work, with distances from 1K and family rides up to a half marathon and 100 mile ride, based at the Autry Museum.

Coast to Crest in Del Mar features out-and-back 10K and 5K courses on hard-packed dirt with minimal elevation and a downhill finish. Wide lagoon views and possible osprey sightings accompany a fast, groomed trail that doubles as a champions..

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.

San Diego Spartan Event Weekend at Pala Fox Raceway offers obstacle course racing with a 5 km Sprint featuring 20 obstacles and a 10 km Super with 25 obstacles, plus kids races and spectator options.

Oriflamme 50K on April 10 2027 is an out and back trail race that drops from the Pacific Crest Trail into desert canyons before a long climb back. The event is limited to 150 runners and features stocked aid stations and finisher medals.

Trail races at Noli Indian School in San Jacinto offer marathon, half marathon, 5k and a stroller friendly Kids 3k, with Native and Open divisions and proceeds benefiting the school athletic program.

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.

A 100-mile trail endurance race in the Mount Laguna area using Pacific Crest, Noble Canyon and Lake Cuyamaca trails. The event is a Western States qualifier, is cupless, and requires volunteer hours or a TrailFit donation.

Trail race in Placerita Canyon, Santa Clarita on May 1, 2027. Multiple distances from 1 mile to 60K, 6 and 12 hour categories, and team relays. Camping, cupless aid stations, and finisher medals are part of the event.

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.

A self-supported marathon on May 8, 2027 in San Diego at Canyonside Park Driveway, organized as a memorial by Best Runner Leaves No Tracks. The counter-clockwise course passes Torrey Pine North with restroom and water access; no official ai..

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.