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March Madness determines the national champion of college basketball. See more basketball pictures.

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March Madness is a phenomenon that grips the national sports psyche from the second week of March through the first week of April. March Madness is the moniker that is given to the National Collegiate Athletic Association (NCAA) Men's and Women's Basketball Tournaments. These tournaments determine the national champions of college basketball.

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The NCAA tournaments are an American tradition that sends millions of fans into a synchronized frenzy each year. It's this chaos that gives the tournament its March Madness nickname. March Madness is the concentrated hype of 68 teams vying for college basketball's biggest prize. It's the last-second, buzzer-beating baskets, the euphoria of winning to play another day and the agony of losing and going home.

In this article, we'll break down the brackets of the NCAA Basketball Tournament and look at how teams are selected, how they are seeded and how the champions of college basketball are determined.