Trail Running calendar near Simi Valley 2026-2027

A multi-distance trail running event on January 31, 2026 in Calabasas, California, offering 100K, 50 mile, 50K, marathon, and 30K options; the 100K is a Western States 100 qualifier.

The Boney Mountain Trail Run will take place in Newbury Park on Saturday 7 February 2026. You can run between 7 and 21 kilometers.

The Boney Mountain Trail Run will take place in Newbury Park on Saturday 7 February 2026. You can run between 7 and 21 kilometers.

A free, social trail run on Saturday, February 7, 2026 in Newport Coast and Laguna Coast Wilderness Park. The route is about 7.5 miles with roughly 1,290 ft of elevation gain and finishes with snacks and a raffle.

Celebrate Valentine’s Day with a scenic trail run in Griffith Park Los Angeles. Choose from 5k, 10k, 15k or half marathon loops and enjoy aid stations, a finisher medal, free photos and post race snacks.

Run rolling trails at Debs Park in the 4 Mile Hill Challenge, with a scenic 4 mile route, a spirited 2K youth climb and a green earth celebration. Note the event is currently listed as postponed.

Trail races at Tejon Ranch near Lebec California include 100k 50k 25k and 11k on fire roads with marked courses aid stations and chip timing. The event offers camping options a finish festival with food and a beer garden for 21 plus.

Pick a scenic 6K or adventurous 12K through Panorama Vista Preserve along the Kern River with flat fast stretches and bluff climbs. Chip timing, custom shirt and finisher medal plus pancakes and raffles make this a fun community run.

Santa Barbara Nine Trails in Santa Barbara, CA offers 35-mile and 17-mile trail endurance runs on March 14, 2026. A 2026 runner guide is available and a waitlist for entries is open; charges occur only after USFS permits and confirmation.

A trail marathon and shorter races held March 14, 2026 in Avalon on Catalina Island. The event includes the state Off Road Marathon Championship plus 10K, 5K and a Kids Run.

Singletrack Stampede in Calabasas, CA offers trail races including 10k and 22k plus half marathon league entries on singletrack with switchbacks, creek crossings and viewpoints; entries include a finisher medal and free race photography.

A point to point 35 mile trail endurance run on Santa Barbara front country trails with over 10,000 feet of climb. Minimal markings, required GPX navigation and spaced aid stations demand self sufficiency.

A trail race in Valencia near Santa Clarita on March 21, 2026 offering 10K, Half Marathon and 50K courses with singletrack, substantial climbing and panoramic ridgeline views. Timing, aid stations and finisher medals are provided.

Trail races in Whiting Ranch Wilderness Park on March 21, 2026 offering 6k, 10k, half marathon and 30k options. Courses run through the foothills of the Santa Ana Mountains with climbs, views and native oak habitat.

Join the inaugural Hill Canyon Trail Trot 5K in Camarillo, a creekside run through canyon trails and oak lined paths with a free Kiddie K. Proceeds support the Stepping Stones Riding Program and low cost horse experiences.

The Griffith Park Trail Marathon will take place in Los Feliz on Saturday 28 March 2026. You can run between 10 and 50 miles.

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.

Trail run and hike options of 6K and 10 mile take place in El Moro Canyon at Crystal Cove State Park on April 4, 2026. Registration includes race photos, a shirt, and a finisher medal; park parking is $15 per vehicle.

Hoppy Easter invites runners to tackle 5k, 10k, 15k and half marathon routes through Griffith Park, Los Angeles on April 4, 2026. Enjoy scenic trails, a custom finisher medal, free photos and snacks for a festive spring run.

On April 11, 2026 in Agoura Hills the Nature Made Great Race offers trail and road options from 1 mile to a half marathon plus combo challenges, scenic Southern California routes, and a large post-race party at Chumash Park.