No, March Madness is not the final stage of the season. March Madness is the nickname for the NCAA Division I Men’s Basketball Tournament, which is a single-elimination tournament held in March and April. While it is a highly anticipated and exciting part of the college basketball season, it is not the final stage. The tournament is held after the regular season and conference championships, and the winner of March Madness is crowned the national champion, but the college basketball season officially ends after all of the postseason tournaments, including the National Invitation Tournament (NIT), CBI, and CIT, are completed.