The odds of filling out a perfect NCAA bracket are about 1 in 9,223,372,036,854,775,808. That’s 9.2 quintillion and 23 percent less than the chance of picking one of the 7.5 quintillion grains of sand ...
Enter college men's basketball and women's basketball brackets for a chance to win up to $1M in USA TODAY's Bracket Challenge sweepstakes. Create your own pools and brackets and invite your friends.
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