The NCAA 토너먼트, also known as the NCAA Basketball Tournament, is an annual college basketball competition in the United States. Organized by the National Collegiate Athletic Association (NCAA), it features 68 teams competing in a single-elimination format to determine the national champion. The tournament typically takes place in March and April, leading to the popular term "March Madness." Teams are selected based on their performance during the regular season and conference tournaments. The tournament is divided into four regions, with each region's winner advancing to the Final Four, where the last remaining teams compete for the championship title.