Trail Running calendar near Rancho Mission Viejo 2026-2027

Experience a fixed time trail challenge at O'Neill Regional Park. Run as many 2.75 mile loops as possible through scenic canyons during an 8 hour, 6 hour, or 3 hour session.

This 21 mile trail run near Yucaipa is postponed from September 2026. The challenging course features over 4,300 feet of climbing on Crafton Hills terrain, with aid station support.

Roosters Backyard Ultra returns to Rohr Park in Chula Vista, California, using a smooth, hard-packed loop with one gentle hill; the backyard ultra format has runners complete repeated laps. Dog friendly with car camping and pop-up tents all..

Experience an obstacle course race at Oak Canyon Park featuring a 5 km course with over 15 obstacles and a Mini Monkey Run for kids. Enjoy a festive atmosphere with music, food, and free spectator access.

A Thanksgiving morning trail event in the Santa Monica Mountains near Reseda offering a half marathon, 10k and 5k on fire roads and singletrack. Half marathon winners receive $500 each and entries include medals and race photography.

Burn off the holiday feast at the Black Mountain Turkey Burner. Choose between 5K, 10K, or a technical half marathon with rewarding views over San Diego.

One-mile loop ultrarun at Washburn Ranch in Hemet, CA offering 3h, 6h, 12h, 24h, 100 mile (31 hour) and relay options. Hardpacked dirt surface, chip timing with live tracking, on-course aid, camping, and continuous food service.

A point to point 50 mile trail run near Julian, California that climbs Stonewall Peak and finishes at Stagecoach Trails RV Resort. The course crosses wooded park terrain into desert and allows 14.5 hours to complete.

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.

Ray Miller 50/50 is a trail race at Point Mugu State Park in Malibu on December 5, 2026 offering 50 Miler, 50K and 30K distances. Registration opens April 1, 2026 at 6:00 AM PT and last year it sold out in a day.

Experience the trails of Daley Ranch at the 5th Annual Dixon Lake Trail Race. Choose from 5K, 10K, or 10 mile distances featuring scenic views from Stanley Peak and a qualifying course for the ERS Championship.

A last person standing race in Yucaipa, CA, where runners complete 4.16-mile loops until only one remains. The event, scheduled for December 2026, features a Krampus-themed challenge of endurance.

Trail races at Crystal Cove State Park in Laguna Beach offering 15K, 6K and a Kids 1K loop. The El Moro 15K features technical trail sections and a $2,000 prize purse, with shirts, finisher medals, free photos and post-race amenities.

Reindeer Run at Griffith Park on December 19, 2026 offers 5k, 10k, 15k and half marathon routes on marked hard packed dirt trails with aid station support, finisher medals, photos, and results posted after the event.

A holiday trail event in San Diego on December 20, 2026 offering Marathon, Half Marathon, 10K and a new six hour hill climb based on 2.5 mile laps. Costume awards are presented in solo and team categories.

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.

Experience an obstacle course race in a mountain rimmed valley at Lake Perris. Choose from 5K, 10K, or 21K distances on a flat and fast course within the rugged wilderness of the Greater Los Angeles area.

Trail races in Calabasas, CA on January 31, 2026 offering 100k, 50 mile, 50k, marathon and 30k distances; the 100k serves as a 2026 WS100 qualifier.

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..

Tackle scenic trails in Griffith Park with routes offering iconic views of the Hollywood Sign. Choose from an 8-mile hike, an 8K, a 5K, or a kids' run. All participants receive a finisher's medal and a t-shirt.