Trail Running calendar near San Marcos 2026-2027

The Peak offers 50K, marathon and half marathon courses that climb Cuyamaca Peak via single-track trails, with aid stations at Sweetwater and Cuyamaca Peak and GPS course files provided. Registration opens April 1, 2026.

A revived 200 mile endurance run based in Escondido, California, that circumnavigates San Diego County over varied terrain. Field limited to 24 experienced ultrarunners; crews are required and profits go to a Native American charity.

A trail race weekend at Los Coyotes Reservation featuring Single Loop, 6H Ultra and 24H Ultra options across desert and alpine trails. Ragnar Village provides camping, bonfires, food trucks and evening activities.

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.

Run an 8-hour loop course on a scenic 3.7-mile trail in Wildwood Canyon State Park. The event features an aid station, vendors, and live music. An after-party follows at a local brewery.

A multi-distance trail event at Lake Perris held during a Dia de los Muertos observance. The 200 mile race features over 44,000 feet of climbing, a 96 hour cutoff, and cash prizes for top finishers.

Celebrate Halloween with a timed trail run at Crystal Cove State Park in Laguna Beach. Choose between a 4 hour or 6 hour endurance challenge set against a scenic coastal backdrop.

Trail race in the Pine Creek Wilderness on a wide dirt fire road with an uphill out and downhill return, offering a half marathon and a 10 km option and parking at Horsethief Canyon Trailhead.

Trail races in Silverado, CA run out of Black Star Canyon with a marathon, a new 25k, a half marathon and a 10K. Routes follow creekside trails, switchbacks and ridge sections with multiple aid stations.

A six hour timed event on a 5 mile paved loop at Miramar Reservoir in San Diego, with chip timing, four aid stations and on course gear support. Participants may complete as many loops as they wish and receive T shirts medals and certificat..

A trail running event in Avalon, Catalina Island with a 13.1 mile half-marathon, a 10K, a 1K kids run, and a Triple Crown challenge offering coastal views and inland climbs.

Experience a fixed time trail challenge at O'Neill Regional Park. Run as many 2.75 mile loops as possible through scenic canyons during an 8 hour, 6 hour, or 3 hour session.

This 21 mile trail run near Yucaipa is postponed from September 2026. The challenging course features over 4,300 feet of climbing on Crafton Hills terrain, with aid station support.

Roosters Backyard Ultra returns to Rohr Park in Chula Vista, California, using a smooth, hard-packed loop with one gentle hill; the backyard ultra format has runners complete repeated laps. Dog friendly with car camping and pop-up tents all..

Experience an obstacle course race at Oak Canyon Park featuring a 5 km course with over 15 obstacles and a Mini Monkey Run for kids. Enjoy a festive atmosphere with music, food, and free spectator access.

Celebrate Thanksgiving morning with a scenic 5K or 10K run along Huntington Beach to fund clean water projects for communities in need around the world.

Trail races of Half Marathon, 10K and 5K take place at Black Mountain in San Diego on November 28, 2026. Courses run on dirt with hill climbs and technical sections and the field is limited to 300 runners.

One-mile loop ultrarun at Washburn Ranch in Hemet, CA offering 3h, 6h, 12h, 24h, 100 mile (31 hour) and relay options. Hardpacked dirt surface, chip timing with live tracking, on-course aid, camping, and continuous food service.

A point to point 50 mile trail run near Julian, California that climbs Stonewall Peak and finishes at Stagecoach Trails RV Resort. The course crosses wooded park terrain into desert and allows 14.5 hours to complete.