Trail Running calendar near Del Mar 2026-2027

Trail races at O'Neill Park in Trabuco Canyon, California on Saturday, May 16, 2026. Distances range from 10k to 50k; registration closes May 1 and entries are nonrefundable with a rollover option if canceled for weather or fire.

Trail race at Corral Canyon Campground on 05/16/26 offering looped courses from a 5 mile scramble to a 50K across rocky single track, jeeping trails and sandy sections, with aid stations and camp access for drop bags.

A multi-distance loop ultrarun at a private ranch in Riverside, CA, featuring one-mile laps, timed solo and relay options, free on-site camping, and awards for distance milestones over Memorial Day weekend.

Muddy Dash in San Diego is a mud based obstacle course of up to 3 miles with running, crawling and water obstacles. The organizer lists value and VIP registration options while the exact venue and address remain to be determined.

A 5k trail run at Black Star Canyon in Silverado, California, with mixed fire road and single track, 390 ft elevation gain, one aid station, a cupless policy, and pre-run access restricted to authorized days.

Free, social group run by Aravaipa at El Moro and Laguna Coast Wilderness Park in Newport Coast on May 30, 2026. The route is about 5.5 miles with roughly 500 feet of ascent, some rocky sections, and post-run snacks and a raffle.

A 50 mile out and back on the Pacific Crest Trail in Cleveland National Forest on June 6, 2026. The route gains about 7,500 feet between 3,000 and 6,000 feet and includes multiple staffed aid stations and specified crew access rules.

The City of Fullerton’s inaugural Fullerton Fit 5K Trail Run takes place June 6, 2026 on a dirt course near Brea Dam, accompanied by a Health & Wellness Fair with vendors, demonstrations, and food trucks.

An unsanctioned, route-choice run in Chino Hills on June 6, 2026 covering more than 4 miles over gravel and trail. Runners navigate four checkpoints on an open course and compete for cash prizes.

Orange Curtain Run in Orange County, California offers a range of distance and timed events from 10K to 100K on mixed pavement and bike path surfaces. The event is scheduled for June 19 and 20, 2026 and includes a certified marathon.

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.

Nixon 5K for Title IX on June 20, 2026 in Yorba Linda features a 5K and a 1K kids run along El Cajon Trail. The family-friendly event includes commemorative medals, race bibs, a 5K race shirt, and a Nixon Library admission.

A 5k trail run at Gypsum Canyon Wilderness on June 24, 2026 over fire roads and single track with about 350 ft of elevation gain. One aid station at mile 2.2 and a cupless race policy.

Into the Wild is a 5k trail run at Saddleback Wilderness on July 15, 2026, over fire roads and single track with 300 ft of elevation gain. Entry is limited to 150 runners and there is no race day registration.

Trail race in Cleveland National Forest near Silverado, CA, with 50K, 30K and 15K out-and-back routes on the Harding Truck Trail, substantial elevation gain, staffed aid stations, mandatory shuttle access and hot-weather conditions.

A 24 hour endurance event at Montgomery Waller Community Park in San Diego on July 24, 2026. Runners loop a 1.22 mile course over trail, grass and bike path with formats from 6 hour to a HEFFTY Half Marathon and a $1500 purse prize.

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.

A 5k trail run at Red Rock Wilderness near Silverado, CA featuring fire roads and single track, 300 feet of climbing, one aid station, a cupless policy, and no pets allowed.

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..