Trail Running calendar near Simi Valley 2025-2026

We have found 48 Trailruns within 80 miles of Simi Valley. See below where and when you can find the races.

Join the College of the Canyons Turkey Trot in Santa Clarita for a scenic three mile run through campus and valley trails, ending with a fast finish on the Cougar Stadium track. Expect live results, a commemorative shirt, and race day fun.

Join the 13th Annual Huntington Beach Turkey Wobble on November 27 for a scenic 1K, 5K or 10K on the sand supporting clean water relief for communities impacted by Hurricane Helene. Family friendly and fun for all ages.

December 2025

Island View Endurance Run in Goleta, CA offers distances from 12 km to 100 mile across scenic coastal trails with big climbing. Supportive aid stations and buckle awards for 100 mile finishers make this a memorable ultrarunning test.

The Fremont Canyon 28k Trail Run is an exciting running event taking place in Irvine Regional Park, Orange, California. Scheduled for December 6, 2025, this challenging 28k (17.5 miles) course features fire roads with an elevation gain and..

Challenge yourself on rugged coastal trails at the Ray Miller 50/50 at Point Mugu State Park in Malibu on December 6, 2025. With 50 mile, 50K and 30K options, the 2025 race is sold out and the waitlist is closed.

Celebrate the SoCalTrail finale at the Crystal Cove Trail Run with scenic 15K, 6K and kids 1K courses just minutes from the beach. Rugged single track, free race photos, a beer garden and vegan breakfast await.

Run under the stars on fully marked fire road courses at Mulholland Gateway Park in Tarzana, with 5K and 10K night options. Bring a working headlamp, enjoy aid stations, and collect a finisher medal and shirt.

Celebrate Hanukkah with the Hanukkah 8 Krazy Kilometers at Panorama Vista Preserve in Bakersfield. Run an 8K or 2K Latke Loop in person or virtually and enjoy a custom finisher medal, Hanukkah swag, and festive community spirit.

Celebrate the season with the Holiday Fun Run at Griffith Park, offering 5k, 10k, 15k and half marathon routes on scenic dirt horse trails and grassy starts. Enjoy on course aid, a finisher medal, free photos and post race snacks.

Join Paramount Ranch Trail Runs on December 20, 2025 for scenic trail races through the historic Paramount Ranch in Agoura Hills. Choose from 10K up to 50K and enjoy varied terrain, stunning views and a community race day organized by KHrac..

Get into the holiday spirit at Run for a Claus in Irvine on Dec 20, 2025, with 1 mile and 5K options plus virtual entries. Enjoy festive music, cookies, a Santa hat, finisher medal and support local charities and kids.

January 2026

Ring in 2026 with the Happy New Year Run at West Creek Park in Valencia, CA. Choose from 5k, 10k, 15k or half marathon on scenic looped trails, enjoy finisher medals, free photos and a festive start to your year.

Ring in the New Year with a scenic trail run at Whittier Narrows Recreation Area on January 4, 2026. Choose 5k, 10k, 15k or a half marathon and enjoy finisher medals, free photos, aid stations and a festive post race vibe.

Experience the Hollywood Sign Run | Hike in Griffith Park on Jan 25, 2026 with scenic out and back trails to the iconic Hollywood Sign and sweeping views of downtown Los Angeles and the Griffith Observatory. Distances from a kid run to 8 mi..

Challenging trail races in Calabasas on Jan 31, 2026 offer distances from 30K to a WS100 qualifying 100K, plus 50 Miler, 50K and marathon. The event is sold out now but a waitlist is available for hopeful runners.

February 2026

Run beneath Boney Mountain on rugged single track with creek crossings and ocean views. Choose a backcountry half or 7k and enjoy a lively post race festival with tacos, massages and finisher swag.

Run the Boney Mountain Trail Run at Rancho Sierra Vista Satwiwa on Feb 7, 2026 for ocean views, creek crossings and steep climbs in Point Mugu. Choose 13.1 or 4.4 mile routes and finish with a medal, shirt and plant based breakfast.

Join Game Day on Feb 8, 2026 at Kenneth Hahn State Recreation Area in Los Angeles for 5k, 10k, 15k and a half marathon. Enjoy custom finisher medals, free photos, snacks and a scenic park course with a challenging hill.

Celebrate Valentine's Day at Griffith Park with A Better World Running for scenic trail runs including 5k, 10k, 15k and a half marathon. The course is marked with cones and aid stations, and all finishers get a custom medal plus free photos..

Run scenic trails at Tejon Ranch near LA with options from 11k to a rugged 100k through canyons, creeks and sage country. Fully marked courses, staffed aid stations, camping and a finish festival with food and beer.