Trail Running calendar near Arlington Heights 2025-2026

The Billy Goat Mountain Climb is a challenging trail running event held in Silverado, California, within the scenic Cleveland National Forest. It offers three race distances: a 17-mile run, a half marathon, and a 10K, catering to various levels of trail runners. The course features rugged mountain t..

The Nature Made Great Race is an annual running event held in Agoura Hills, California, near Los Angeles. Celebrating over 40 years, it features multiple race distances including the Chesebro Half Marathon, Old Agoura 10K, Deena Kastor 5K, and a 1-mile fun run. The half marathon course offers scenic..

Badwater Salton Sea is a challenging 81-mile (130 km) team ultra running event held in Southern California, starting from Salton City below sea level and finishing atop Palomar Mountain at 5,500 feet elevation. The course traverses desert and mountain terrain, including an 8-mile single-track trail..

The Dingneng Wang event, held in San Diego, CA, is a marathon taking place on May 2, 2026, at Los Penasquitos Canyon Trail. Formerly known as the PQ & GZ Trail Marathon, it was renamed to honor Dingneng Wang, a beloved runner and outdoor enthusiast. This unique event is not a race and offers no offi..

The Gorgonio View Trail Run takes place at Big Bear Mountain Resort's Snow Summit in Big Bear Lake, California. This scenic 10K trail race offers runners the chance to explore picturesque singletrack trails winding through high-altitude pine forests. The course features a mix of smooth paths and cha..

The Nanny Goat race, hosted at a private horse ranch in Riverside, California, offers a unique ultrarunning experience featuring distances of 6, 12, 24 hours, a 100-mile solo race, and a 24-hour relay for teams up to four runners. The course is a flat, one-mile loop on mostly dirt and grass with goo..

The Saddleback Marathon, held in Silverado, California, is a premier trail running event set in the scenic Saddleback Mountains within the Cleveland National Forest. Offering marathon, half marathon, and 10K distances, the race features challenging courses with significant elevation gains—4,244 feet..