OC Trail Runners Group Run

The Great American Pizza Run takes place in Long Beach, California, at 5400 E Ocean Blvd, offering multiple pizza-themed distances: 5K (The Fast Slice), 10K (The Deep Dish Dash), Half Marathon (The Full Pie Half), 1-Miler (The Cheesy Mile), and a Kids Dash (The Little Mozzarella Sprint). The course..

The event takes place in Silverado, CA, at 13333 Black Star Canyon Rd. It offers the following distances: 50 Mile 50K 30K Registration closes on Mon, Sep 15 at 11:59 PM PT. Race entries are non-refundable and non-transferable. Volunteer positions are available and include race credits and race sw..

The Rock It in Chino Hills 5K & 10K is a trail running and hiking event held at Chino Hills State Park in Brea, California. Participants can choose between a 5K or 10K course that showcases the park's stunning and expansive trails, offering scenic views and a tranquil outdoor experience. The race in..

Live Oak Odyssey is a fixed-time trail run held at O’Neill Regional Park in Trabuco Canyon, California. It offers 3- and 6-hour options on a 2.75-mile loop with about 500 feet of vertical gain per lap, challenging runners with a mix of ups and downs, single-track, and double-track sections. The wood..

Casper's Trail Races on Oct 25, 2025, take place in San Juan Capistrano, California, offering trail distances: 10K, 13.2 miles, 30K, marathon, and 50K. The event, hosted by KHraces, aims for a well-supported, well-marked experience with swag, highlighting Orange County’s fall trail atmosphere. While..

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..