Trail Running calendar near Oceanside 2026-2027

A six-hour timed running and walking event at Lake Miramar on a paved 5-mile loop with chip timing, four aid stations, gear support and medals for all finishers, plus awards in several age divisions.

Run through the historic streets of Avalon and the rugged interior trails of Catalina Island. Choose between a half marathon, 10K, or kids fun run featuring stunning Pacific Ocean views and island landmarks.

Fixed-time trail events of three, six and eight hours on an approximately 2.75 mile loop at O'Neill Regional Park in Trabuco Canyon. Wooded trails with about 500 feet of gain per loop and a main aid station with food and hydration.

Trail running and hiking event in the Crafton Hills near Yucaipa offering 21 mile, 10 mile, and 4 mile courses with notable elevation gain. Ten percent of registration fees support the Crafton Hills Open Space Conservancy.

Roosters Backyard Ultra is a backyard-format race at Rohr Park in Chula Vista on Nov 14, 2026, featuring a smooth, firm trail with one gentle hill; dogs are permitted and car camping is available.

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.

A Thanksgiving morning trail race in the Santa Monica Mountains with half marathon, 10k and 5k options, ocean and valley views, finisher medals, free course photos, a beer garden and taco breakfast, and a canned food drive for the West Vall..

A Thanksgiving morning 1K/5K/10K on the Huntington Beach coastline that raises funds with World Help to drill clean water wells; routes run along the pier and Main Street with on-site check-in and nearby parking.

A Thanksgiving weekend trail event in San Diego on November 28, 2026, offering Half Marathon, 10K and 5K on dirt singletrack and service roads with climbing. The field is limited to 300 runners and the race is an ERS Championship qualifier.

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 point to point 50 miles of San Diego trails from the Sunrise Trailhead through Cuyamaca Rancho State Park to Stagecoach Trails RV Resort with aid stations, crew access, camping at the finish, a post race meal and a pre race shuttle option..

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 nighttime Last Person Standing race in Yucaipa, CA on Dec 11, 2026 where runners repeat a 4.167 mile loop each hour and must finish each lap before the bell. Headlamps and a firelit basecamp frame the event as it runs through the night.

Trail races at Crystal Cove State Park near the beach featuring a 15k with a $2,000 prize purse, a 6k and a Kids 1k; courses include aid stations, marked single track and post-race amenities like breakfast and free photography.

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.

Holiday-themed trail event in San Diego offering Marathon, Half Marathon, 10K and a new 6-hour Hill Climb on Cardiac hill, plus solo and team costume awards and King and Queen hill titles.

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 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.

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..