Trail Running calendar near Borrego Springs 2025-2026

Oriflamme 50K on April 11, 2026 challenges runners with a scenic out and back from Sunrise Trailhead, dropping into Anza Borrego desert and climbing back on rugged single track. Field capped at 150 with a tech shirt and finisher medal.

Badwater Salton Sea is an 81 mile team ultramarathon from Salton City to Palomar Mountain, climbing more than 9,000 feet and testing runners with searing heat by day and freezing nights. Teams of two or three run together and entries are li..

Run rugged trails, mud and hills through Ramona Wine Country with competitive and fun 5K options plus a lively Beer Mile. Finishers get wine tasting, a medal and an after party at Ramona Ranch Winery while proceeds support Operation Rebound..

Challenge yourself on rugged trails at The Oaks on the Soboba Reservation with marathon, half, 5K and kids 3K options. Expect hills, stream crossings and great community energy as part of a race supporting Noli Indian School scholarships.

Take on the San Diego 100, a rugged 100 mile loop at Lake Cuyamaca near Julian across mostly single track, technical trails and big climbs. A Western States qualifier that rewards experienced ultrarunners with epic desert and mountain scene..

Run scenic trails at O'Neill Regional Park on May 16, 2026, with distances from 10k to 50k for every level. Expect challenging singletrack, on site bib pickup, and a friendly race day vibe that welcomes beginners and ultrarunners.

Run the Big Bear Trail Experience 10K at Snow Summit in Big Bear Lake CA, over high altitude pine trails with technical climbs and sweeping Sierra views. Expect wildflowers, wildlife and a thrilling scenic challenge.

Timed loop endurance run on a flat 1 mile course at a Riverside horse ranch over Memorial Day weekend. Choose solo or team formats from 3, 6, 12 or 24 hour events or go for the 100 mile challenge and rack up laps.

Run 50 miles of iconic Pacific Crest Trail single track through the Laguna Mountains, with big climbs, rocky sections and sweeping views. Part of the SoCal Ultra Grand Prix, this classic out and back is a true test for trail lovers.

Challenge yourself on the rugged trails of Black Mountain in San Diego on June 20, 2026 with 50K, 25K and half marathon options. Expect technical rocky single track, sweeping views and lively aid stations in a wild coastal landscape.

Run under a full moon on scenic loops through manzanita and rock formations near Cahuilla Mountain, with distances from a 9 miler up to 50K. Limited to 200 runners for an intimate nighttime trail experience.

Run scenic 5K, 10K or half marathon around Green Valley Lake with lake loops, forest trails and a steady climb to a sweeping viewpoint. Celebrate after with food, live music and community energy while supporting the Children's Forest.

Join Riley Park Trail Races on August 1, 2026 in Orange County for a scenic 3.3 mile loop with distances from 5k to half marathon and a six hour timed challenge. Run loops, test your limits and soak up a fun community atmosphere.

Experience rugged singletrack and sweeping ridge views at the Noble Canyon Trail races in Pine Valley CA on September 5, 2026. Choose a challenging 50K or a scenic 15K through pine forests, granite slopes and canyon switchbacks.

Join the Cahuilla Rez Ultra in Anza, CA on Oct 17, 2026, a Native organized fundraiser celebrating Cahuilla culture and supporting youth. Choose from 100 mile, timed loop events, half marathon or a community 5k.

Explore trails at Lake Hodges in San Diego on October 17 and 18, 2026 at the Trail Festival, featuring trail runs, mountain biking and a new off road run, bike, run challenge. Distances range from kids fun runs to a 50K for seasoned racers.

Challenge yourself on scenic trails at the Caspers Trail Races in Caspers Wilderness Park on October 24, 2026. Choose distances 10k to 50k and enjoy rugged singletrack, supportive aid stations and a festive finish line.