Trail Running calendar near Borrego Springs 2026-2027

O'Neill Park Trail Races in Trabuco Canyon on May 16, 2026 invites trail lovers to run through oak and sycamore lined canyons. Choose from 50k, marathon, 30k, half marathon or 10k for a challenging and rewarding day on scenic single track.

Race the 10K Spartan Trail at Big Bear on May 17, 2026, across technical singletrack in high altitude pine forest with sweeping Southern Sierra views. The weekend includes Spartan obstacle races and a GOVX service member discount.

Join the 17th Nanny Goat May 23 to 24 in Riverside for looped one mile laps on a flat ranch course with camping, swimming and family friendly amenities. Options span 3 hour to 100 mile plus a 24 hour relay with on site support.

Tackle the PCT 50, a 50 mile trail run on June 6 in Cleveland National Forest with about 7,500 feet of gain on rugged single track. Expect rocky climbs and well stocked aid stations to keep you moving.

Run the scenic Holcomb Valley Trail Run around Big Bear Lake on courses of 33, 14, or 7 miles along the Pacific Crest Trail. Enjoy rugged mountain views while supporting local volunteer search and rescue.

Challenge yourself on rugged single track through chaparral and manzanita at Black Mountain with 50K, 25K, and half marathon options. Expect technical climbs, scenic coastal views, and aid stations relayed by ham radio teams.

Night trail running under a full moon on Cahuilla Band land near Anza, California, with scenic single track, rocky views, and manzanita lined loops. Choose distances up to 50K on a looped course with limited entries for an intimate race.

Run a 5K, 10K or Half Marathon around scenic Green Valley Lake, tackling a lake loop and a challenging climb to forest viewpoints on mixed paved and dirt roads. Enjoy post race festivities while supporting The Children’s Forest.

Hit the trails at Riley Park Trail Races on August 1, 2026 in Coto de Caza, CA, with looped courses from 5K to 30K and a 6 hour timed option. Every finisher gets a race shirt and medal, plus athlete guides and convenient bib pickup.

Run scenic and rugged trails in Noble Canyon with 50K or 15K options around Pine Valley, California. Technical climbs, fast descents and canyon views come with aid stations, race photos and great volunteer support.

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.

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.

Join the Lake Hodges Trail Festival, a two day trail celebration with distances from a kid's mile to a challenging 50K plus a scenic trail duathlon. Enjoy handcrafted medals, lakeside trails and festival vibes, and remember to bring your ow..

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.

Tackle scenic singletrack at Caspers Wilderness Park in San Juan Capistrano on October 24, 2026. Choose from 10k, half marathon, 35k, marathon, or 50k for a day of trails, views, and strong community vibes.

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.

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,..

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..