Monster Energy Supercross is a professional motorcycle racing series that features high-speed races on specially designed dirt tracks. The events take place in stadiums across the United States, showcasing skilled riders who navigate jumps, turns, and obstacles. The series is part of the FIM Supercross World Championship and includes various classes, such as 450SX and 250SX. Each race consists of qualifying heats, semifinals, and a main event, where riders compete for points to determine the overall champion at the end of the season.