Trail Running calendar near Irvine 2026-2027

Trail races at Crystal Cove State Park near Newport Beach include a 15K, 6K and Kids 1k on varied single track and fire roads, with shirts, finisher medals, free photography, breakfast options and a post race 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.

A multi-distance run at Griffith Park on December 19, 2026, held on a marked dirt horse trail with aid at the turnaround. Registration includes a finisher medal, goodie bag, free photos and results posted after the event.

A holiday trail event in San Diego with Marathon, Half Marathon, 10K and a new 6 Hour Hill Climb on Cardiac hill. Costume awards are given in solo and team categories.

Trail races on Catalina Island featuring a 50 Mile and a 50K course that start and finish in Avalon. Organized by the Avalon Lions Club to raise funds for island charities and schools, with ocean views and possible bison sightings.

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 68 miles trail event across the Backbone Trail in the Santa Monica Mountains with about 13,600 feet of climb and relay options for teams of two, three, or four. Field is limited to 200 entrants and solo runners must have completed a prior..

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 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..

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.

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 in Calabasas, CA on January 30, 2027 offering 100K, 50 mile, 50K, marathon and 30K distances; the 100K is a 2026 WS100 qualifier and registration opens July 1, 2026.

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 supported single loop trail run of about 51 miles in San Diego on February 20, 2027. The course is unmarked, requires navigation, and has no aid stations or entry fee.

Timed 6-hour, 12-hour, and 24-hour events on a rolling 2.2 mile loop at Will Rogers State Historic Park in Pacific Palisades, with relay options, a stocked aid station each loop, and crew and pacer allowances.

Trail races on a loop course at Goodman Ranch Sycamore Canyon Preserve near San Diego. Distances include 100K, 50K and a 1/2 Marathon with solo and 4 person relay options.

A series of road and trail races on Catalina Island around Avalon and Two Harbors, including a 26.2-mile trail marathon, 10K, 5K and a 1K kids run with island and ocean views.

Tough Mudder Los Angeles on March 20, 2027 at Lake Elsinore Raceway is a mud obstacle event over scrubland and motor-cross terrain. Race options include 15 plus km, 5 to 8 km, Infinity laps, spectator access, and group packages.