A perfect NCAA bracket: The absurd odds of the March Madness dream
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 on the planet we picked at random.source https://www.ncaa.com/news/basketball-men/bracketiq/2023-03-12/perfect-ncaa-bracket-absurd-odds-march-madness-dream