Trail Running calendar near Rancho Santa Margarita 2025-2026

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.

Event overview The Anza Borrego Cuyamaca 50 Mile Run is a point-to-point trail race in Julian, CA on December 6, 2025. The course covers 50 miles and has a 14.5-hour finish cutoff. The route starts at the Sunrise Trailhead and descends into..

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.

Event details The Dixon Lake 10/10 Trail Race is scheduled for December 13, 2025, at El Caballo Park, 3450 E. Valley Parkway, Escondido, CA. It is the 5th annual running of this event and is an ERS Championship qualifier for all distances...

Mulholland Under the Stars Trail Race 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..

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..

Take in ocean views at Crystal Cove State Park on December 13, 2025 with 15K, 6K and kids 1K options for every pace. Finishers get medals and shirts, free photos and a festive post race beer garden and breakfast.

Event details Paramount Ranch Trail Runs is a trail running event scheduled for December 20, 2025, at Paramount Ranch in Agoura Hills, California. The event is described as a return to the local trails after recent years. The National Park..

Take on the Dirty December Trail Run at Sycamore Canyon on Dec 21, 2025 with marathon, half, 10K and a 6 hour hill climb over rugged trails and steep climbs. Finishers get a tech shirt and prizes and there is a lively costume contest.

Del Dios Trail Race Del Dios Trail Race, called the "Race of the Gods", is the 11th annual edition held at Lake Hodges in Escondido, California. The event takes place in January 2026. It is listed as a Championship Qualifier. The..

Event details Ring in the New Year is a running event at Whittier Narrows Recreation Area on Sunday, January 4, 2026. The course uses marked out-and-back loops on the beach path and is an open course shared with other pedestrians, runners,..

San Diego 50 & Trail Runs is a multi-distance trail running festival staged at the San Pasqual Valley Staging Area in Escondido, California. The lineup includes a 50-mile ultramarathon, a Trail Marathon (plus a 2-person relay), a Trail Heav..

Run or hike to the iconic Hollywood Sign through scenic Griffith Park with sweeping views of the Observatory, Downtown LA and the San Fernando Valley. Choose from 8 mile, 8K, 5K or a kids 2.2K and enjoy tech shirts, finisher medals and on c..