Trail Running calendar near Irvine 2025-2026

Event overview OC Trail Runners Group Run takes place on Saturday, October 25, 2025 in Newport Coast, California. The run is free, social and non-competitive, described as slower-paced and take-it-easy. The stated goal is to spend time outd..

Caspers Trail Races at Caspers Wilderness Park offer scenic, supported trail courses with on course marking and swag in distances from 10k to 50k. The October event fills quickly; join the waitlist for a chance to run.

No Name is an ultra trail race hosted by SoCalTrail, held in Cheeseboro Canyon at Cheeseboro National Park near Agoura, California. The event offers three distances: a 50k, a Half-Marathon, and a 5k trail run. The course weaves through dive..

Monster Dash : Irvine, October 26, 2025 The event takes place at Bill Barber Memorial Park in Irvine on Sunday, October 26, 2025. Distances offered: 5k 10k 15k Half marathon Course, rules and logistics The course is an open route on a sha..

Machete Muertos 200 Dia De Los Muertos Ultra hits Lake Perris Oct 29 to Nov 2 2025 with distances from 10 miles to 200 miles. Expect rugged scenic loops, a festive Day of the Dead vibe, camping and on course aid.

The Roosters Backyard Ultra will take place in San Diego on Saturday 1 November 2025.

Race through iconic Griffith Park on single track trails up to the Hollywood sign, with distances from 10K to 50K to suit all trail runners. Expect stunning city views, well stocked aid stations, and a welcoming morning race atmosphere.

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 win..

Wildwood Canyon Trail Run (November 1, 2025, Yucaipa, CA) The event is an eight-hour loop race held at Wildwood Canyon State Park in Yucaipa, California. Runners may complete as many laps as they can within the allotted time. Awards and an..

Run the Catalina Island Half Marathon or 10K in Avalon on November 8, 2025 for a scenic trail experience with climbs, summit ocean views and a finish in town. Family friendly with a Kids Fun Run and a Triple Crown challenge option.

Event overview The Sri Chinmoy 6-Hour Race in San Diego is a timed endurance event held at Miramar Reservoir. The race format is a 6-hour time limit during which athletes complete repeated laps of a 5-mile loop. Entry is limited to 70 parti..

Celebrate the 10th annual Chino Hills Trail Run Series Fall at Chino Hills State Park with challenging 30K and 50K trail routes that support the Discovery Center. Scenic single track, aid stations, and community spirit await.

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..

Trip to: The Red Tail Roost Agua Dulce loop Trail is a 5-mile moderate trail run in the Cleveland National Forest near Mt. Laguna, California. The course winds through peaceful, wooded terrain that may be icy or snowy in late fall, so rider..

Event The Boundiful Endurance Runs is scheduled for November 29, 2025, at Washburn Ranch in Hemet, CA. The event offers multiple race formats and timed-duration events. 100m Relay Event 24hrs 12hrs 6hrs 3hrs Course and support The course..

Tackle rugged singletrack and scenic trails at the 9th annual Black Mountain Turkey Burner Trail Race, an ERS Championship qualifier with a limited 300 runner field. Pick a half marathon, 10K, 5K or kids dash around the community park.

Run rugged coastal trails at Point Mugu State Park in Malibu with sweeping ocean views and big climbs on the 30k, 50k and 50 mile courses. 2025 sold out, waitlist open; all finishers get a medal and race day T shirt.

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..

The Tenth Annual Keepin' It Rural 5K/10K Trail Race and Festival takes place at the scenic Elfin Forest Recreational Reserve in north San Diego. This unique event features chip-timed races for both 5K and 10K runners, with a special course..

The Lunatic Loop 12 Hour Run will take place in Ramona on Saturday 13 December 2025. You can run between 6 and 12 kilometers.