Trail Running calendar near Borrego Springs 2026-2027

Mountain trail event on October 17, 2026 offering 50K, marathon, and half marathon options that climb to Cuyamaca Peak on single track trails, with substantial elevation change and GPX course files available.

A 200-mile multi-day endurance run around San Diego County from October 23–26 with an 82-hour cutoff, mandatory crew support, a 24-runner field limit, and entry fees that include a charity donation.

An individual trail event at Los Coyotes Reservation on October 23-24, 2026 offering a 3.1 mile Yellow Loop plus 6 hour and 24 hour ultra formats on the relay loops, with camping, food trucks, bonfires, and festival amenities.

A team trail relay at Los Coyotes Reservation on October 23 and 24, 2026 featuring desert and mountain single track, a 112.8 mile course shared across teams, and on site camping plus glamping at Ragnar Village.

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.

A trail event at Wildwood Canyon State Park featuring a timed 8 hour loop format and a single-loop 6K, with aid stations, vendors, morning live music, and an afterparty at a local brewery.

A multi-distance trail event at Lake Perris featuring a 200 mile race with over 44,000 feet of elevation gain, looped courses, on-course aid stations, group camping, and cash prizes for top finishers.

Trail running in the Pine Creek Wilderness on a wide dirt fire road with an out and back layout. The course climbs to a turnaround and returns downhill, with a 10 km option and parking at Horsethief Canyon Trailhead.

A six-hour timed running and walking event at Lake Miramar on a paved 5-mile loop with chip timing, four aid stations, gear support and medals for all finishers, plus awards in several age divisions.

A fixed-time trail run at O'Neill Regional Park on November 14, 2026, offering 3, 6 and 8 hour formats on a roughly 2.75 mile loop with varied single- and double-track terrain and a major aid station at the start/finish.

A trail event in Yucaipa, California on November 14, 2026 offering 21, 10 and 4 mile routes through the Crafton Hills, with notable elevation gain and 10 percent of fees donated to local conservation.

Roosters Backyard Ultra returns to Rohr Park in Chula Vista on November 14, 2026. The backyard ultra uses repeated laps on a smooth firm trail with a gentle hill, allows dogs and offers car camping with pop up tents on the fields.

A dirt-trail event at Black Mountain Ranch Park on November 28, 2026, offering Half Marathon, 10K and 5K courses with significant climbing. Field limited to 300 runners; terrain includes service roads and single-track.

One mile loop ultra on hardpacked dirt with timed 3, 6, 12 and 24 hour options plus relay teams. Live chip timing, free on course camping, continuous food service, and a 31 hour buckle challenge to reach 100 miles.

A point to point 50-mile trail race near Julian, CA on December 5, 2026, moving from mountain trails through Cuyamaca Rancho State Park to a desert finish at Stagecoach Trails RV Resort. The time limit is 14.5 hours and a pre race shuttle i..

A Last Person Standing race in Yucaipa, CA where runners must complete a repeated *4.167 mile* loop each hour until one remains. Basecamp offers warmth between laps and limited camping is available at Five Winds Camping.

Trail races at Daley Ranch near Dixon Lake offer 10 Mile, 10K and 5K courses from El Caballo Park with single track and dirt roads. The 10 Mile climbs Standley Peak for a 360 degree view and the field is limited to 300 runners.

A holiday trail event in San Diego with Marathon, Half Marathon, 10K and a new 6 Hour Hill Climb on Cardiac hill. Costume awards are given in solo and team categories.

Experience a diverse trail running event in Escondido featuring everything from a 50 mile ultra to a stroller friendly 5k. Explore the valley floor or climb to the summit of Raptor Ridge in this cupless race series.

SoCal Spartan Trifecta Weekend at Lake Perris on Jan 23 and 24, 2027 offers 5K, 10K and 21K obstacle races plus kids races and spectator options at a lakeside park with camping and facilities.