Trail Running calendar near Tarzana 2025-2026

Santa Clarita Trail Race is a golden-trail running event held in East Walker Ranch on Placerita Canyon Road, Santa Clarita, CA. Brought to you by New Global Adventures, it offers four distances: 5K, 10K, Half Marathon, and 28K. The race winds through historic Placerita Canyon, where gold was discove..

Catalina Island Half-Marathon & 10K is a mountain-trail running event held in Avalon, Catalina Island, California. The program features a 13.1-mile Catalina Island Half Marathon, a 6.2-mile Catalina Island 10K, plus a Kids Run and an optional Triple Crown challenge. The course begins in Avalon, proc..

The Chino Hills Trail Run Series, held at Chino Hills State Park in Brea, California, offers challenging trail races in scenic natural surroundings. The fall event features 30K and 50K distances, with well-marked courses that traverse hilly terrain and showcase native plants and wildlife. Aid statio..

The 4 Mile Hill Challenge is a rolling, all-trail race held at Debs Park in Los Angeles, with the Audubon Center at Debs Park serving as the start and finish. The event features a 4-mile run/walk/hike and a Run4Paws (Love Your Pet) division, making it pet-friendly. The course starts at Griffin Avenu..

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 loss of 2860 feet, making it suitable for experienced runner..

The Ray Miller 50/50 is a trail running event held at Point Mugu State Park in Malibu, California. Scheduled for December 6, 2025, the race offers three distance options: a 50-mile ultra, a 50K, and a 30K. The course takes runners through the scenic terrain of the state park, known for its natural b..

Crystal Cove Trail Run is a SoCalTrail event held at Crystal Cove State Park, El Moro in Laguna Beach, California. The race offers three distances: 15K, 6K, and a Kids 1K, all designed to showcase Orange County’s immaculate trails. The course combines fire-road climbs, ridgeline descents and action-..

Run for a Claus presented by Optima Tax Relief is an annual charity run in Irvine, California, hosted on the University of California, Irvine Ring Road campus. The event features a 5K and a Kids 1 Mile Run/Walk, with virtual 5K and virtual 1 Mile options for those who prefer to participate remotely...

The event takes place on Saturday, December 13, 2025, at Marvin Braude Mulholland Gateway Park in Tarzana, CA, with the start and finish at the trailhead lot. It is a night trail race run on fire roads and offers the following distances: 10K Night Race 5K Night Race Courses are fully marked and..

The Paramount Ranch Trail Runs, held in Agoura Hills, California, offer a variety of race distances including 50K, marathon, 30K, half marathon, and 10K. Set on scenic trails within the historic Paramount Ranch, the event provides runners with a challenging and picturesque course. The race atmospher..

The Hollywood Sign Run | Hike takes place on January 25, 2026 in Griffith Park, Los Angeles. The event includes multiple distances and race types: 8 miles Hollywood Sign Run | Hike 8 km Cathy’s Corner 8K 5 km Griffith Park 5K Trail Challenge 2.2 km P-2.2K Kid Run The start and finish are located..

The Mt. Hollywood 12K Trail Run Hike will take place in Los Angeles on Sunday 25 January 2026. You can run between 5 and 8 miles.

Sean O'Brien 100K/50M/50K/26.2/30K is a trail ultramarathon event in Calabasas, California (1925 Las Virgenes Road). It offers five distances: 100K, 50 miles, 50K, marathon, and 30K, giving athletes a range of challenging options on scenic trail terrain. The race is part of the Sean O’Brien Trail Ru..

Boney Mountain Trail Run takes place in Thousand Oaks, California, starting from Rancho Sierra Vista / Satwiwa in the Santa Monica Mountains. It offers a Half Marathon (13.1 miles, ~2,780 ft gain) and a 7k Trail Run (4.4 miles, ~664 ft gain). Runners traverse backcountry canyons of Point Mugu State..

The event is scheduled for Saturday, February 14, 2026, at Griffith Park in Los Angeles. Distances offered: 5k 10k 15k Half marathon All finishers receive a medal and a goodie bag. Results are typically posted on the event page by the evening of race day. The event has an early bird pricing perio..

The Back On The Ranch Trail Run is scheduled for October 3 and 4, 2025 in Los Olivos, CA. The event offers multiple timed and multi-hour formats for participants over two days. Distances and formats: 3 hour 6 hour 12 hour 24 hour 48 hour A runner guide for the 2025 event and an organizer liabilit..

The Catalina Island Marathon, along with its 10K and 5K distances, takes place in Avalon, California on Catalina Island. The event features the full marathon (26.2 miles), a 10K (6.2 miles), and a 5K (3.1 miles), plus a Kids Run, drawing runners to the island’s scenic trails. It is the oldest trail..

The Back On The Ranch Trail Run is scheduled for October 3 and 4, 2025 in Los Olivos, CA. The event offers multiple timed and multi-hour formats for participants over two days. Distances and formats: 3 hour 6 hour 12 hour 24 hour 48 hour A runner guide for the 2025 event and an organizer liabilit..

VALENCIA Trail Race takes place in Valencia, California, offering three trail distances: 10K, Half Marathon, and 50K Ultra. Set amid Southern California’s hills, the course climbs to peaks, follows ridgelines, and traverses canyons with panoramic views of the Santa Clarita Valley. The route is 70% s..

Billy Goat Mountain Climb takes place in Silverado, California, in the Cleveland National Forest, with the start/finish on Maple Springs Road near Lost Woman Canyon. The event offers three distances: the Silverado Loop at about 17 miles with roughly 3,800 feet of elevation gain; a half-marathon clim..