Lucas Oil Pro Motocross is a premier outdoor motocross racing series in the United States. It features professional riders competing on various tracks across the country, showcasing their skills on dirt bikes. The series typically runs from May to September, with multiple rounds held at different locations. The championship includes two main classes: 450 Class and 250 Class. Riders accumulate points based on their performance in each race, with the goal of earning the most points throughout the season. The series is known for its challenging courses and competitive atmosphere, attracting fans and participants alike.