Trail Running calendar near Green Valley Lake 2026-2027

A mud and obstacle focused 5K at Oak Canyon Park in Irvine on November 21, 2026, featuring mud pits, walls, ropes, monkey bars and a festival area with vendors and food.

Trail races in the Santa Monica Mountains on Thanksgiving offering a half marathon, 10k and 5k on fire roads and singletrack, with finisher medals, free photography, breakfast and a 21 plus beer garden.

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.

Endurance event at Washburn Ranch, Hemet CA, on a one mile hardpacked dirt loop offering 100 miles, relay teams, and 24 hour, 12 hour, 6 hour and 3 hour formats with chip timing, live tracking, camping and onsite food.

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 loop race at El Dorado Ranch in Yucaipa on Dec 11, 2026. Runners repeat a measured 4.16 mile loop at night until one person remains; permits are pending and registration closes Dec 8.

Crystal Cove Trail Run in Laguna Beach offers marked trail races of 15K, 6K and a Kids 1k with aid stations, course photography and on site amenities. The 15K includes a $2,000 prize purse and age group awards.

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 themed running event at Griffith Park offering 5k, 10k, 15k and half marathon distances on a shared dirt horse trail. The event includes on-course aid, finisher medals, photos, parking near the Merry Go Round and posted results.

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.

Event Overview This event takes place in Griffith Park, Los Angeles. It offers several trail run and hike distances. The start/finish location is on a fire road just north of the Old Zoo. Distances Participants can choose from the following..

Trail running and hiking events in Griffith Park on 01/24/2027 with 8 Mile, 8K, 5K and 2.2K courses; the 8 Mile is an out-and-back to a Hollywood Sign viewpoint. Marked courses have aid stations, chip timing, finisher medals and event shirt..

A January 2027 trail event at Lake Hodges, Escondido, offering 50K, half marathon, 10K, 5K, a kids dash, and a new Hercules DemiGod Challenge that combines the half, 10K, and 5K within five hours.

A 24 hour trail event in Perris, CA on January 29, 2027 where runners repeat a Molcajete 1.0 loop of more than 4 miles. Individual and four-person team entries are available, with awards for top individuals and teams.

Trail races at Daley Ranch in Escondido, CA include a 50K (two 15.6 mile loops, 6,318 ft gain) and a 13.1 mile half, with three stocked aid stations, set cutoffs, race shirts, finisher medals, and awards.

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.

Tough Mudder Los Angeles on March 20, 2027 at Lake Elsinore Raceway offers multiple obstacle courses from 5 to 8 km and 15 plus km, an Infinity multi lap option, finisher medals and a Mudder Village for spectators.

A half marathon and 10K on a rugged high-desert course near Joshua Tree National Park on March 20, 2027. The event benefits the John Wayne Cancer Foundation, offers chip timing, aid stations, and finisher awards.

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.