The College Basketball Championship, often referred to as "March Madness," is an annual tournament held in the United States. It features 68 college basketball teams competing for the national title. The tournament typically takes place in March and April, culminating in a championship game that determines the national champion. The event is organized by the NCAA (National Collegiate Athletic Association) and is known for its exciting games and upsets. Teams are selected based on their performance during the season, and the tournament format includes single-elimination rounds, making every game crucial for advancing to the next stage.