Trail Running calendar near Fallbrook 2026-2027

We have found 78 Trailruns within 80 miles of Fallbrook. See below where and when you can find the races.

Run the Cuyamaca 100K in Julian, CA, starting and finishing at Camp Cuyamaca in Cuyamaca Rancho State Park. Three scenic loops and big climbs on a Western States qualifying course make this a true mountain challenge.

The Palos Verdes Trails 5K will take place in Rolling Hills Estates on Sunday 4 October 2026. You can run 5 kilometers.

That's No Moon in the Cleveland National Forest offers 50 mile, 50K and 30K courses over remote single track and 4x4 trails with significant elevation gain, mandatory self sufficiency and on-course aid; the 50 mile awards Sterling Silver Ti..

Run the Cahuilla Rez Ultra in Anza California with distances from a tribal 5k to a 100 mile and 6 hour, 12 hour and 24 hour loop events on a runnable two mile dirt course. Camp on site and support the Cahuilla Youth and Family Committee.

The Lake Hodges Trail Festival will take place in Rancho Bernardo from Saturday 17 October 2026 to Sunday 18 October 2026. You can run between 5 and 50 kilometers.

Experience scenic singletrack and natural terrain at Hahamongna Watershed Park in Pasadena with options for a trail half marathon, 10K, or 5K on Sunday, October 18, 2026. Perfect for trail runners seeking a challenging yet runnable course.

Take on the San Diego 200, a 200 mile endurance run around San Diego County Oct 23 to 26 from Escondido. This rugged, scenic test of self reliance is for experienced ultrarunners. Registration opens Jan 19, 2026.

A trail running event at Caspers Wilderness Park on October 24, 2026, offering 10k, half marathon, 35k, marathon and 50k courses. Courses are described as marked and supported, with an athlete guide and past results available.

Test your endurance on scenic Wildwood Canyon in an 8 hour timed loop run, climb, repeat and see how many loops you can complete. Enjoy aid stations, live bluegrass, local vendors and a postrace gathering at a nearby brewery.

Machete Muertos 200 at Lake Perris offers multiple ultramarathon and ruck options across scenic lake loops, with camping available and free pro photos. Tackle the epic 200 mile course with about 44,000 feet of gain and a 96 hour cutoff.

November 2026

Trail events in the Pine Creek Wilderness with a wide dirt fire road course that climbs to a turnaround then returns downhill, offering a half marathon and a 10K, with parking at the Horsethief Canyon Trailhead.

Experience rugged trails and canyon views at the Saddleback Marathon in Silverado CA on Nov 7. Choose from 10K, half, 25k or marathon routes with big climbs and aid stations. Register by Nov 5.

Trail running event in Avalon, Catalina Island on November 14, 2026 offering a 13.1 mile half-marathon, a 10K, a 1K kids run and a Triple Crown challenge, with courses passing Wrigley Mansion, island interior trails and Wrigley Memorial oce..

Run the LA Turkey Trail through the Santa Monica Mountains on Thanksgiving for scenic ocean and mountain views past the Nike Missile Tower. Finishers get medals, shirts, vegan tacos, race photos, a 21 and over beer garden and awards.

December 2026

Run a scenic 50 mile point to point ultramarathon from Sunrise Trailhead to Stagecoach Trails RV Resort in Julian, CA, climbing Stonewall Peak and skirting lakeside trails before a desert finish. Family and crew friendly with aid, camping,..

Trail races at Crystal Cove State Park with 6k, 15k and a Kids 1k course near the beach. The 15k includes technical features and a $2,000 prize purse, with aid stations stocked by Skratch Labs.

Hit the trails in San Diego on December 20, 2026 for the Dirty December Trail Run, featuring marathon, half marathon, 10K and a new Hill Climb six hour challenge up and down Cardiac Hill. Wear a costume for solo or team awards and vie for K..