Trail Running calendar near Descanso 2026-2027

A trail race at Black Mountain in San Diego with 50K, 25K and a half marathon on June 20, 2026. The event follows Trail Sisters guidelines and features aid stations staffed by ham radio experts.

A free untimed 3 mile community trail run at San Andreas Staging Lot in Del Mar on August 26, 2026. Limited to 250 participants, finishers receive a throwback shirt and medal distributed grab bag style.

A loop based endurance event at Montgomery Waller Community Park offering 24 hour and shorter timed races plus a HEFFTY half marathon. The course mixes trail, grass and bike path and provides oncourse aid and runner campsite facilities.

Experience a unique desert night run under the Full Buck Moon on a scenic looped course. Choose between distances ranging from 9 miles to a 50k ultramarathon through manzanita groves and single track trails.

Experience trail running in Orange County with several race distances ranging from a 5k to a 6 hour timed challenge. Navigate a scenic 3.3 mile looped course with multiple early bib pickup options available.

The 21st Annual Martha Walker Wild Duck is a 5 km cross country race at Guajome Regional Park in Oceanside, California. It is the opening race of the 2026 Dirt Dogs XC Series and includes a race flyer and course maps.

Nighttime trail run at a private San Diego ranch on 08/28/26 with marked loops of 5k, 10k, 15k and 30k. Headlamps or flashlights required; reflective aid stations, on-site camping, tech tee and awards are included.

Trail races in Pine Valley, California on September 5, 2026 offering 50 kilometer and 15 kilometer options. Both races have fixed cutoffs, marked trails with frequent ribbons, staffed aid stations, and specific rules for pacers, crews, and..

A memorial stair climb at the Hilton San Diego Bayfront on September 5, 2026, honoring first responders who died on 9/11/01. Funds raised support FirefighterAid, which assists firefighters and their families.

The Trail & Wine Valle de Guadalupe will take place in Ensenada from Friday 25 September 2026 to Saturday 26 September 2026. You can run between 12 and 50 kilometers.

A weekend of Spartan obstacle races at Lake Elsinore Raceway on Sep 26 and 27, 2026 featuring Sprint and Super courses, kids races, Hurricane Heat challenges, and spectator access near a large natural freshwater lake.

A community running event in San Marcos on September 26, 2026 offering a 10K competitive race, a 5K fun run and a free kids trot, with race shirts, wooden medals and an on-site expo.

Cuyamaca 100k is a 100 kilometer trail race in San Diego on Oct 3, 2026, crossing oak woodlands, meadows, pine forest and chaparral. The 2026 event is a Western States 2027 qualifier and supports outdoor education and public lands causes.

A trail race in Gonzales Canyon Open Space with 10 Mile, 10K and 5K courses. Start and finish are at Solana Ranch Park and the 10 Mile and 10K include the locally known Puke Hill.

A multi distance event on the Cahuilla Indian Reservation near Anza, California featuring a runnable 2 mile loop, timed 6 12 and 24 hour events, a 100 mile race, a half marathon, and a tribal 5k. Net proceeds support local youth programming..

Experience a diverse weekend of trail running and off road duathlon at San Diego’s Scenic Lake Hodges. Choose from distances ranging from a kid’s mile to a 50K ultra marathon or tackle the mountain bike and run challenge.

Mountain trail event on October 17, 2026 offering 50K, marathon, and half marathon options that climb to Cuyamaca Peak on single track trails, with substantial elevation change and GPX course files available.

A revived 200 mile endurance run around San Diego County featuring coastal, urban, mountain, and desert terrain. Field is limited to 24 experienced ultrarunners who have 82 hours to complete the course and must use a crew.

An individual trail event at Los Coyotes Reservation on October 23-24, 2026 offering a 3.1 mile Yellow Loop plus 6 hour and 24 hour ultra formats on the relay loops, with camping, food trucks, bonfires, and festival amenities.

A team trail relay at Los Coyotes Reservation on October 23 and 24, 2026 featuring desert and mountain single track, a 112.8 mile course shared across teams, and on site camping plus glamping at Ragnar Village.