Trail Running calendar near Green Valley Lake 2026-2027

Timed trail runs of 6 hour and 4 hour take place at Crystal Cove State Park in Laguna Beach on October 31, 2026. Organizer Sunshine Trail Racing lists entry fees and a registration deadline of October 28.

A trail race in Silverado routed out of Black Star Canyon, offering marathon, new 25k, half and 10k distances with significant elevation gain and aid stations along the course.

Live Oak Odyssey is a fixed time trail running event at O'Neill Regional Park offering 3, 6 and 8 hour looped runs on a roughly 2.75 mile loop with about 500 feet of elevation gain per loop and a main aid station.

A trail event on November 14, 2026 in Yucaipa, CA offering 21 mile, 10 mile, and 4 mile courses through the Crafton Hills. Ten percent of registration fees support the Crafton Hills Open Space Conservancy.

Trailsgiving at Elysian Park on November 14, 2026 features marked out and back trail routes on hard packed dirt with hills. Distances include 5k, 10k, 15k, and a half marathon with on-course aid and finisher medals.

Terrain Race Irvine is an obstacle and mud focused 5K at Oak Canyon Park on November 21, 2026, featuring mud pits, walls, ropes and 11+ obstacles, plus pre race packet pickup and a post race festival with food, music and vendor booths.

Trail races in Griffith Park Los Angeles on November 21, 2026 with multiple distances from 10 K to 50 K. Organized by Keira Henninger Events and open for registration from July 1, 2026.

A Thanksgiving morning trail event in the Santa Monica Mountains with a 13.67-mile half-marathon, 10k and 5k on fire roads and singletrack. Half-marathon winners receive $500 and entries include a shirt, finisher medal, photography, breakfa..

A Thanksgiving morning coastal 1K 5K and 10K walk and run in Huntington Beach that raises funds with World Help to drill clean water wells serving communities worldwide.

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 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 on December 11, 2026 where runners repeat hourly 4.167 mile loops until one person remains. The overnight event uses foothill trails, headlamps, a basecamp with firelight, and limited camping.

A trail running event at Crystal Cove State Park near Laguna Beach with 15K, 6K and a Kids 1k, marked courses and aid stations. The 15K carries a $2,000 prize purse and the event includes race shirts, medals, breakfast and a beer garden.

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.

Reindeer Run at Griffith Park on December 19, 2026 offers 5k, 10k, 15k and half marathon routes on a shared hard packed dirt trail with an aid station, finisher medals, photos, live results and event app features.

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.

A Spartan Race weekend at Lake Perris State Recreation Area on Jan 23 and 24, 2027 features 5K, 10K and 21K obstacle races plus a kids race. The course is described as flat and fast with lakeside views and park facilities.

Trail run and hike events in Griffith Park on January 24 2027, featuring 8M, 8K, 5K and a 2.2K kids run with marked courses, aid stations, participant shirts and finisher medals.

Trail events in Griffith Park on January 24, 2027, including an 8 mile out and back to the Hollywood Sign viewpoint, an 8K, a 5K, and a 2.2K kids loop with aid stations, timing, shirts, and finisher medals.

Trail races at Lake Hodges in Escondido on January 24, 2027, offering 5K to 50K distances on dirt roads and single track with 100 to 1000 feet of elevation gain.