Trail Running calendar near Green Valley Lake 2025-2026

Celebrate the City of Fullerton's inaugural 5K Trail Run through scenic Brea Dam trails near the Fullerton Tennis Center and Golf Course. After the race, enjoy a Health & Wellness Fair, food trucks, a finisher shirt, medal and free photos.

Explore a scenic 5 mile loop at Red Tail Roost in Cleveland National Forest with possible snow and ice underfoot. Hot drinks, snacks and photo stops make this a cozy social outing for ages 18 to 35; limited spots available.

Run a scenic one mile loop at Washburn Ranch in Hemet with 100 mile, 24 hour and relay formats, live tracking, on site camping and close aid. Buckles await solo runners who complete 100 miles within the 31 hour window.

The Fremont Canyon 28k Trail Run is an exciting running event taking place in Irvine Regional Park, Orange, California. Scheduled for December 6, 2025, this challenging 28k (17.5 miles) course features fire roads with an elevation gain and..

Join the San Clemente Santa Run on December 6, 2025 for a festive 5K or fun run along the beach, starting at the Pier Bowl. Celebrate with music, an auction and dinner while supporting Lily's Lighthouse and epilepsy research.

Tackle scenic single track trails at Elfin Forest in the Keepin' It Rural 5K and 10K, where runners get chip timing and a festive post race party. Enjoy a tech shirt, finisher medallion and a beer while supporting Escondido Creek Conservanc..

Celebrate the SoCalTrail finale at the Crystal Cove Trail Run with scenic 15K, 6K and kids 1K courses just minutes from the beach. Rugged single track, free race photos, a beer garden and vegan breakfast await.

Run scenic trails at Dixon Lake on December 13, 2025 in Escondido, CA with 10 mile, 10K or 5K options. Limited to 300 runners, courses mix single track and dirt service road and include a climb to Stanley Peak for big views.

Celebrate the season with the Holiday Fun Run at Griffith Park, offering 5k, 10k, 15k and half marathon routes on scenic dirt horse trails and grassy starts. Enjoy on course aid, a finisher medal, free photos and post race snacks.

Get into the holiday spirit at Run for a Claus in Irvine on Dec 20, 2025, with 1 mile and 5K options plus virtual entries. Enjoy festive music, cookies, a Santa hat, finisher medal and support local charities and kids.

Challenge yourself on scenic single track and dirt roads around Lake Hodges at the Race of the Gods, a January trail classic near Escondido. Options from short fun runs to epic ultramarathons make this a must for trail lovers.

Ring in the New Year with a scenic trail run at Whittier Narrows Recreation Area on January 4, 2026. Choose 5k, 10k, 15k or a half marathon and enjoy finisher medals, free photos, aid stations and a festive post race vibe.

Choose from trail distances at the San Diego 50 & Trail Runs, from a 50 Mile to a family friendly stroller 5K and youth mile. Tackle Raptor Ridge singletrack for big views, then celebrate with a tri blend shirt and handcrafted wooden medal.

Join the 22nd annual Calico Trail Run on Sunday January 25 2026, choose 30K or 50K through the historic Calico Ghost Town and Mojave Desert mountains near Yermo California. USATF sanctioned trails promise epic scenery and a true desert chal..

Experience the Hollywood Sign Run | Hike in Griffith Park on Jan 25, 2026 with scenic out and back trails to the iconic Hollywood Sign and sweeping views of downtown Los Angeles and the Griffith Observatory. Distances from a kid run to 8 mi..

Challenge yourself on Feb 8, 2026 at Kenneth Hahn State Recreation Area with 5k, 10k, 15k or half marathon options on scenic park trails featuring dirt, grass and a short steep climb. Enjoy finisher medals, snacks, photos and a friendly vib..

Take on scenic Daley Ranch trails in Escondido with a rugged 50K or a half marathon loop around Dixon Lake. Expect big climbs, well stocked aid stations, and a welcoming trail community on February 14, 2026.

Celebrate Valentine's Day with a scenic road and trail run in Griffith Park offering 5k, 10k, 15k and half marathon distances. Enjoy custom finisher medals, free photos, snacks and park views on packed dirt and grass trails.

Run vineyards and orange groves at the 9th San Pasqual Valley Trail Race on Feb 21, 2026, with 20 mile, half marathon and 10K options and a 450 runner limit. The half is the final championship qualifier and finishers get a free local wine t..

Take on the Griffith Park Trail Marathon in Los Angeles, an out and back trail run that climbs near the Hollywood sign with single track and fire road scenery. Multiple distances and well spaced aid stations make it a great day for trail ru..