Trail Running calendar near Arlington Heights 2026-2027

Event Details The Badwater Salton Sea is an 81-mile (130 km) team ultramarathon that takes place in the Anza-Borrego Desert and Palomar Mountain region of Southern California. The event challenges teams of two or three runners to complete t..

A trail based 5K at BackCountry Gardens in Ramona featuring a two loop 1.5 mile course with mud and natural obstacles. The event also includes a charity beer mile and a Ramona Ranch wine tasting with food available.

Trail races on the Soboba Indian Reservation support Noli Indian School. Choose from marathon, half marathon, 5k, or a kids' 3k walk/run. The event features Native and Open divisions, with proceeds funding a student scholarship.

Race through the ocean-view trails of Point Mugu State Park on a 21k or 10k course. Enjoy a finisher medal, breakfast tacos, and a post-race beer garden. It's part of a six-race half-marathon series with special awards.

Machete Trail Madness features 10K, 50K, and 100K races on looped courses around Lake Perris. The event includes free lakeside camping for participants and their families. It offers long cut-off times and a community-focused, multi-lap race..

Choose your challenge on the rugged trails of Woodland Hills. The Las Virgenes Canyon Ultra Trail Races offer six distances, from a 6K to a new 100K ultra. Enjoy fully supported aid stations and a festive post-race atmosphere.

Tackle the Shadow Strike Unsanctioned Run in Chino Hills, a 4+ mile all terrain challenge across trails, gravel and open streets. No clocks, just navigation to checkpoints and cash prizes for top finishers and random participants.

A 13.5-mile trail race on fire roads and single track in Limestone Canyon with 2,719 feet of elevation gain, two aid stations, cupless policy, and limited packet pickup options.

The Northeast Trail 5K offers a run or walk on the trails of Griffith Park. This fourth annual event supports youth programs and features custom medals for the first 500 participants. Awards recognize the top three male and female finishers..

Event Overview The San Diego 100 is a 100-mile ultramarathon scheduled for May 1-2, 2026. The event features two divisions: a standard 100-mile race and a Solo Division for runners competing without crew or pacer support. Solo runners recei..

Trails n Vines Wine Run takes runners through the scenic vineyards of Orfila Winery in Escondido. Choose from 3, 6, or 9-mile trail distances and enjoy wine tastings after the race. Participation is limited to 400 runners.

This trail race in Santa Clarita's historic Placerita Canyon offers a wide range of distances, from a 5K to a 120K ultramarathon. The course travels through the golden hills of the East Walker Ranch Open Space, featuring singletrack trails..

An annual 10K trail event in Glendale with a climb to 2,536 feet and panoramic views of the L.A. Basin and San Gabriel Mountains. Produced by the City of Glendale and benefiting the Glendale Parks and Open Space Foundation.

Challenge yourself on the scenic trails of Crystal Cove State Park. Choose from 5K, 25K, or 50K distances with hill climbs and ocean views. Your run supports the John Wayne Cancer Foundation's fight against cancer.

The O'Neill Park Trail Races offer a range of distances on the trails in South Orange County. Join the event in Trabuco Canyon on May 16, 2026.

Run along the iconic LA River Path in Canoga Park with a fun, 80s martial arts theme. Choose from a 5K, 10K, or half marathon, or join virtually. Expect themed music, costumes, and a finisher's medal.

This 10 km trail run takes place in Big Bear, California, featuring scenic but technical mountain trails at high altitude. It is scheduled for May 17, 2026, and is part of a Spartan festival weekend.

Nanny Goat is a family-friendly timed run on a flat, one-mile loop at a private horse ranch in Riverside. Choose from solo 3 to 24 hour races, a 100 miler, or a 24 hour relay. The event offers free camping, swimming, and a medal for every p..

Event Date & Course The Mount Wilson Trail Race is scheduled for May 23, 2026. The full course is 8.6 miles long. It starts and finishes at Kersting Court in Sierra Madre. The route goes up the Mount Wilson Trail to Orchard Camp and ret..

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.