Trail Running Calendar California 2026-2027

A Better World Running presents Rockin' Summer at Whittier Narrows on July 19, 2026 with 5k, 10k, 15k and half marathon options on marked park loops, featuring aid station support, finisher medals, photos, live results, and on-site registra..

An endurance event at Montgomery Waller Park in San Diego on July 24, 2026, held on a 1.22 mile loop of trail, grass and bike path. Timed events run from six hours to 24 hours, plus a social run and a half marathon option.

A trail event in Downieville, California with 25K, 50K, and 100K options on mostly singletrack. Courses include multiple aid stations, substantial elevation gain, and specific equipment and pacer rules for the 100K.

Night trail event on July 25, 2026 with a 4.6 mile loop, distances from 9 mile to 50K, mandatory headlamp and aid stations each loop.

Trail runs of 50K, 30K and 10K take place on the Great Shasta Rail Trail near McCloud, CA on July 25, 2026. The out-and-back course is relatively flat with aid stations, post-race meal and finisher medal.

Timed loop endurance races at Point Pinole on July 25, 2026 offering 12, 6 and 3 hour options for individuals or teams, with an all-day BBQ.

A 12.5 mile point to point mountain trail race on Donner Summit near Soda Springs California. The course includes four summits, about 3,300 feet of elevation gain, shuttle transportation and a unique finisher item.

Aztlan XC Classic is a 5K event in Elysian Park, Los Angeles on July 25, 2026, with youth and adult race categories and differing registration options. Proceeds support the Aztlan Athletics Foundation's camps and scholarships.

Trail running at Calero County Park with multiple distances across single track and dirt paths, significant climbs, aid stations and free parking at the park.

A free, social, non-competitive trail group run on July 25, 2026 in Newport Coast, CA. The route is about 6.5 miles with roughly 1,000 feet of gain on hilly, rocky trails; participants should have trail experience and bring hydration.

A trail race in Auburn CA on July 26 2026 offering 10.5 and 5.9 mile courses through single track, canal sections and dirt roads with views of the American River Canyon. Organized by Fleet Feet Sacramento Trail Challenge.

A 135 mile invitational ultramarathon from Badwater Basin in Death Valley to Whitney Portal near Mt. Whitney. Runners cover desert and mountain terrain with a 45 hour limit and must be supported by a single vehicle crew.

An evening trail event in Pasadena's Lower Arroyo Park offering 6K and 12K routes with chip timing and aid stations. The finish includes tacos and drinks and runners receive a commemorative shirt and wooden medal.

Trail and road races at Green Valley Lake offering 5K, 10K and half marathon distances with mixed paved and dirt terrain, aid stations about every 1.5 miles, chip timing and post-race activities at the Community Garden.

A 5K run or walk with a 282 step climb at Baldwin Hills Scenic Overlook in Culver City that benefits the Aztlan Athletics Foundation. Registration runs from 10/10/2025 to 12/31/2025 with a $45 fee.

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 trail race in the Marin Headlands with 8K, half, 30K and 50K options along coastal single-track and fire roads, marked courses, cupless aid stations, and a 350 runner capacity.

A multi-loop trail marathon near Soda Springs, CA covering about 26.4 miles and 4,300 ft of gain across Royal Gorge land, with a central aid station, solo and relay options, parking at Soda Springs Ski Resort, and shuttle service to the aid..

A two-mile beach run in Hermosa Beach, California on August 1, 2026, organized by the Mira Costa Track and Cross Country teams. Registration runs April 17 to August 1 and the $30 fee supports the team.

Monthly community hikes with an optional trail-run pace in Richmond, organized by FIERCE Advocates with Moving Forward and Richmond Run Club. Route details and gear recommendations are shared with registrants ahead of each meetup.