Trail Running calendar near Descanso 2026-2027

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 multi-distance trail event at Lake Perris featuring a 200-mile ultramarathon with 44,000+ feet of climb, technical terrain, looped courses, camping, aid stations, pacer rules, and cash prizes for 100 and 200 mile podiums.

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.

Roosters Backyard Ultra is a backyard-format race at Rohr Park in Chula Vista on Nov 14, 2026, featuring a smooth, firm trail with one gentle hill; dogs are permitted and car camping is available.

A Thanksgiving weekend trail event in San Diego on November 28, 2026, offering Half Marathon, 10K and 5K on dirt singletrack and service roads with climbing. The field is limited to 300 runners and the race is an ERS Championship qualifier.

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 miles of San Diego trails from the Sunrise Trailhead through Cuyamaca Rancho State Park to Stagecoach Trails RV Resort with aid stations, crew access, camping at the finish, a post race meal and a pre race shuttle option..

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.

Holiday-themed trail event in San Diego offering Marathon, Half Marathon, 10K and a new 6-hour Hill Climb on Cardiac hill, plus solo and team costume awards and King and Queen hill titles.

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.

A trail race at Lake Hodges on January 24, 2027 featuring 50K, half marathon, 10K and 5K over single track and dirt roads with 100 to 2900 feet of elevation gain. A new DemiGod Challenge combines three distances in one day with a five hour..

Inaugural 24HR trail race at Lake Perris, Perris, California. Solo runners and teams of four run repeated 4 mile Molcajete 1.0 loops over 24 hours with awards for top individuals and teams.

Trail races at Daley Ranch on February 13, 2027 include a 50K (two 25K loops) and a half marathon, three fully stocked aid stations, defined cut off times, and pre race training runs.

A trail race in San Pasqual Valley with 10K, half marathon and 20 mile options through vineyards and orange groves. Longer routes summit Raptor Ridge twice and the finish includes a free local wine tasting. Field limited to 450 runners.

A self-support trail loop of 51 miles near San Diego on Feb 20, 2027, with no fees, awards, or course markings. Participants navigate an unmarked route and can use several public refill points and downloadable course files.

Trail running at Goodman Ranch Sycamore Canyon Preserve near Poway, CA offering 100K, 50K and a half marathon with solo and relay entries. Solo 100K runners must have completed a 50K or longer race.

A trail race weekend in Anza Borrego Desert State Park on March 13, 2027, offering 50K, marathon, and half marathon courses with aid stations and on-site campground facilities. Participants receive a tech shirt and a finisher medal.