Trail Running calendar near Simi Valley 2026-2027

We have found 59 Trailruns within 80 miles of Simi Valley. See below where and when you can find the races.

Celebrate Easter with Hoppy Easter at Griffith Park in Los Angeles, offering 5k to half marathon options on scenic dirt horse trails shared with other park users. Enjoy custom finisher medals, on course aid and a festive outdoor vibe.

Hit the trails at Crystal Cove for Rock It in El Moro Canyon on April 4, 2026, choose a scenic 6K or challenging 10 Miler with climbs, descents and Pacific Ocean views. Run or hike, and enjoy a shirt, race photos and a finisher medal.

Run the Nature Made Great Race in Agoura Hills on April 11, 2026, with scenic trail and road options from a Chesebro half to a one mile fun run. Celebrate at the expo and post race party, earn a tech top and commemorative medal.

Yaya's Run at Surfers Point in Ventura invites runners to 5k, 10k, 15k and half marathon distances along a scenic beach path held in memory of a local runner. Enjoy marked out and back loops, an aid station and finisher medals.

Challenge yourself on scenic, rugged Southern California trails at the Leona Divide Races in Lake Hughes, with distances from 30K to a 100 mile Western States qualifier. Race day is April 18 with optional packet pickup the Friday before.

Challenge yourself on scenic ocean view trails above Malibu at the Point Mugu Trail Run, with a half marathon and a 10k through Sycamore Canyon and up Fireline Trail. Enjoy a finisher medal, free photos and a post race beer garden.

Run the scenic Las Virgenes Canyon Ultra Trail Races in Woodland Hills, CA, offering distances from 6K to 100K across challenging trails with rewarding climbs and views. Fully supported course and lively post-race food, music, and medals ma..

Join the 14th annual Aut2Run for Autism at CSU Channel Islands on April 26, 2026, and support the Autism Society Ventura County. Choose from 15K, 10K trail, 5K, 1 mile, Fun K for kids and participants with special needs, or run virtually.

May 2026

Coyote Two Moon is a challenging multi distance trail running weekend in Ojai, California, May 1 to 3, 2026, with options from 10K to a rugged 100 mile featuring massive climbing. Field is limited to 150 runners so sign up early.

Run into the 1980s with The Cobra 5Kai, 10Kai & Half Miyagithon along the LA River Path in Canoga Park. Costume friendly, with throwback tunes, a finisher’s medal and plenty of crowd energy; crane kicks encouraged.

Return to Hahamongna Watershed Park on May 24, 2026 for a day of team relays and solo challenges. Choose a 50 km relay with teams of up to five, a solo 50 km ultra, or a 10 km fun run amid scenic Pasadena trails.

Run Forever Brave at West Creek Park in Valencia on May 24, with 5k, 10k, 15k and a half marathon on scenic out and back loops. Aid stations every loop, finisher medals, free photos and post race snacks make for a fun, community day.

Pacifico Ultra is a fully supported trail race near Palmdale CA with a challenging 50k and half marathon across technical singletrack and mountain roads. Expect high elevation, aid stations, shuttle service and a true wilderness vibe.

June 2026

On June 6, 2026, tackle coastal singletrack and fire road through the Santa Monica Mountains and Point Mugu with distances from half marathon to 100k. Scenic, challenging courses and full athlete guides make this a standout Malibu trail eve..

Run Fullerton's inaugural 5K on dirt trails through Brea Dam and along the tennis center and golf course. Afterward enjoy a Health and Wellness Fair with local vendors, fitness demos and food trucks.

Run the Griffith Park Trail Marathon Relay or 8K on June 7 at the Lower Old Zoo, with scenic trails and views of the abandoned zoo, Observatory and Hollywood Sign. Teams up to five, plus chip timing, medals, shirts, DJs and food trucks.

Run the scenic trails of Griffith Park at Phoenix Rising on June 13, 2026, with 5k to half marathon options for every pace. Enjoy marked dirt trail routes, finisher medals, free photos and post race snacks in a lively community atmosphere.

Run the scenic Old Zoo Half Marathon in Griffith Park, Los Angeles on June 14, 2026, with half marathon and 12K options on mostly flat trail courses. Enjoy a commemorative elephant finisher medal, music and postrace refreshments.

Tough Topanga on June 20 at Topanga State Park features 15k, 10k, a Junior 1k and an untimed Hiker's Delight on scenic singletrack and fire roads. Expect full aid, chip timing and a festive post race beer garden.

July 2026

The Mt. Baldy 5000 is a scenic mountain 5K that climbs almost entirely uphill to a sunset finish with sweeping mountain views and spectator friendly sections. Post race BBQ, live music and a chairlift ride cap the evening.