Trail Running calendar near San Marcos 2026-2027

A 28k trail run in Fremont Canyon at Irvine Regional Park featuring about 3800 feet of elevation change and four aid stations. The course runs on fire roads, is cupless, and participants are asked to carry personal hydration.

A last person standing race in Yucaipa, CA, where runners complete 4.16-mile loops until only one remains. The event, scheduled for December 2026, features a Krampus-themed challenge of endurance.

Trail races at Crystal Cove State Park in Laguna Beach offering 15K, 6K and a Kids 1K loop. The El Moro 15K features technical trail sections and a $2,000 prize purse, with shirts, finisher medals, free photos and post-race amenities.

Trail races at Daley Ranch in Escondido offer 5K, 10K and a 10 mile course that climbs Standley Peak for a 360 degree view. The event limits fields to 300 runners and lists varied elevation gain by course.

A holiday trail event in San Diego on December 20, 2026 offering Marathon, Half Marathon, 10K and a new six hour hill climb based on 2.5 mile laps. Costume awards are presented 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.

Lake Perris hosts a Spartan obstacle weekend Jan 23–24, 2027 with 5 km, 10 km, 21 km and kids races across a flat, fast course by the lake. Team entries, spectator access, volunteer options and service member discounts are available.

Del Dios Trail Race is the 12th annual "Race of the Gods" at Lake Hodges, Escondido, CA, offering 50K, half marathon, 10K, 5K and a Kids Dash on dirt roads and single-track trails with 100' to 1000' elevation gain; a championship qualifier.

A 24-hour trail event at Lake Perris featuring repeated climbs on the Molcajete 1.0 loop of about 4 miles per lap. Options include solo entries and four-person teams with awards for top individuals and teams.

Trail races at Daley Ranch near Dixon Lake offering a 50K (two 25K loops) and a half marathon with three stocked aid stations, published cut off times, course GPX files, and organized training runs from the Daley Ranch Gate.

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

Trail races at Goodman Ranch Sycamore Canyon Preserve near Poway, CA on February 27, 2027. Distances include 100K and 50K with solo and four person relay options plus a half marathon; solo 100K requires prior 50K completion.

Trail races on Catalina Island include a marathon, 10K and 5K in Avalon, California on March 13, 2027. The event is California's State Off-Road Marathon Championship and uses Conservancy trails with ocean views.

Trail runs in Anza Borrego Desert on March 13, 2027 with 50K, marathon and half marathon courses, marked routes and aid stations. The event starts at Stagecoach Trails RV Resort with campsite facilities and course maps provided.

Timed 6-, 12-, and 24-hour running events at Lake Cuyamaca on a scenic 2 mile loop near Julian, CA, with on-site dining, a store, and camping and RV options.

An obstacle mud run at Lake Elsinore Raceway on March 20, 2027 offering multiple course options, finisher rewards, spectator access, and volunteer and group opportunities.

Tough Mudder Los Angeles on March 20 2027 at Lake Elsinore Raceway features multiple distance mud runs with more than 20 obstacles, finisher rewards, an Infinity multi lap option, and Mudder Village spectator access.

A trail race in Del Mar offering 10K, 5K and a kids dash on flat, fast out-and-back dirt courses with lagoon views and a downhill finish. It serves as the final Championship Qualifier of the Sunshine Series.

Multi distance trail running and gravel bike events at Diamond Valley Lake in Hemet, California. Routes include lakeside loops, out and back courses, a stroller 5K and a kids fun run.

San Diego Spartan Event Weekend at Pala Fox Raceway on April 10 and 11, 2027 features a 5 km Sprint, a 10 km Super, kids races, spectator access, and a post-race festival with mud pits and rope climbs.