O'Neill Park Trail Races

The Machete Trail Madness 100K is a challenging ultramarathon event taking place on April 12, 2025, at Lake Perris, California. Participants can choose from three distances: 100K, 50K, and 10K, with the 100K course featuring a tough 10-mile loop and a total elevation gain of 2,300 feet per lap. The..

The OC Trail Runners Group Run is a free, social, and non-competitive running event taking place on April 12, 2025, at El Moro and Laguna Coast Wilderness Park in Newport Beach, California. Participants can enjoy approximately 7.5 miles of scenic trails with a vertical gain of about 1100 feet, featu..

The Saddleback Marathon, scheduled for April 26, 2025, is a premier trail running event held in Black Star Canyon, Silverado, California. This annual race features a full marathon, half marathon, and 10K, each offering unique challenges and scenic views of the Cleveland National Forest. Participants..

The Run4Kids Ultra Running Party is an exciting event taking place in Corona, California, featuring a variety of running challenges including 6-hour, 12-hour, 24-hour, marathon, 50-mile, 100-mile races, and a 24-hour relay. This event aims to promote fitness and support youth runners, encouraging th..

The John Wayne Grit Series - Newport Coast is a running event that features 50K, 25K, and 5K courses set in the scenic Crystal Cove State Park. Participants will experience challenging hill climbs and breathtaking ocean views while supporting the John Wayne Cancer Foundation's mission to combat canc..

The Billy Goat Half Marathon Climb is a challenging running event set to take place on May 10, 2025, in Silverado, California. Participants can choose between a half marathon and a 10K race, both featuring significant elevation gains. The course will take runners up Maple Springs Road to N.Main Divi..