Trail Running calendar near Green Valley Lake 2026-2027

The Verdugo Mountains Trail Run & Hike will take place in Glendale on Sunday 3 May 2026. You can run 10 kilometers.

A trail run at Crystal Cove State Park on May 9, 2026 offering 50K, 25K and 5K distances with ocean views, aid for finishers, podium awards, and proceeds benefiting the John Wayne Cancer Foundation.

A multi-distance trail event on May 16, 2026 in O'Neill Regional Park, Trabuco Canyon, running through oak and sycamore woodlands and native coastal scrub. Parking is $5; no refunds are offered but rollovers are allowed for weather or fire..

A high-altitude 10K at Big Bear Mountain Resort featuring rocky singletrack, technical climbs and wide views of the Southern Sierra, held as part of a Spartan obstacle race festival weekend.

A multi-distance ultrarunning event on a flat one mile loop at a private ranch in Riverside, CA. Options range from 3 hour races to a 100 mile solo and a 24 hour relay, with camping and on site support.

The Mount Wilson Trail Race returns May 23, 2026 with an 8.6 mile out and back from Kersting Court to Orchard Camp, plus a children's Fun Run; the event supports volunteer trail repair through the Fletcher Trail Maintenance Fund.

Return to Hahamongna Watershed Park on May 24, 2026 for a day of team relays and solo challenges. Choose a 50 km relay with teams of up to five, a solo 50 km ultra, or a 10 km fun run amid scenic Pasadena trails.

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.

Pacifico Ultra is a fully supported trail race near Palmdale CA with a challenging 50k and half marathon across technical singletrack and mountain roads. Expect high elevation, aid stations, shuttle service and a true wilderness vibe.

Run Fullerton's inaugural 5K on dirt trails through Brea Dam and along the tennis center and golf course. Afterward enjoy a Health and Wellness Fair with local vendors, fitness demos and food trucks.

A trail relay and 8K at the Lower Old Zoo in Griffith Park on June 7, 2026, offering chip timing, finisher medals, three aid stations, DJs and food trucks.

Holcomb Valley Trail Run returns to Big Bear Lake in June 2026 with new South Shore courses, multiple single day distances, and a TransRockies three day staged race during the Big Bear Peaks and Pines weekend.

Phoenix Rising at Griffith Park in Los Angeles on June 13, 2026 offers 5k, 10k, 15k and half marathon trail friendly courses. Enjoy a marked dirt trail, aid station, finisher medal and free photos in a lively community race.

Run the scenic Old Zoo Half Marathon in Griffith Park, Los Angeles on June 14, 2026, with half marathon and 12K options on mostly flat trail courses. Enjoy a commemorative elephant finisher medal, music and postrace refreshments.

Multiple ultramarathon and shorter races on a largely flat bike path along the San Gabriel River. The looped course is USATF certified and features aid stations at both ends.

A family-friendly 5K and 1K kids run in Yorba Linda that commemorates Title IX, follows the El Cajon Trail, welcomes strollers and dogs, and includes a vendor fair and finisher medals.

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.

Chingona Fest is a two day camping and trail run fundraiser with a timed 6 hour loop challenge and community festivities. Women and those who identify with womanhood are invited to run, camp, and celebrate while supporting Chingonas.

A mountain 5K at Mt Baldy Resort with an almost entirely uphill course on fire roads, followed by a barbecue dinner, live music, and a chairlift ride from the Top of the Notch. This edition is sold out.

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.