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Almost everyone's March Madness bracket is already busted

Princeton's shocking win over Arizona eliminated most remaining perfect brackets on Thursday.

WASHINGTON — Day one of March Madness 2023 was a bracket buster.

Ten games in to the first-round of the men's college basketball tournament, fewer than 0.02% of men's March Madness brackets remain perfect, according to the NCAA website

No. 8 Maryland's win against No. 9 WVU wiped out about half the initial field, but it was No. 13 Furman's upset victory over No. 4 Virginia that caused absolute chaos among millions of brackets, according to NCAA tracking across "all of the major online games." That dropped the number of perfect brackets to only 10.67% after two games, then No. 7 Missouri beating No. 10 Utah State knocked out 4% more. 

Later in the day, No. 15 Princeton upset No. 2 Arizona 59-55. The 15th-seeded Tigers scored the final nine points to finish the upset, holding the Pac-12 Tournament champions scoreless over the final 4:21. 

Going into the day, Princeton was the least-picked No. 15 seed at 4.13 percent, according to the NCAA.

For the past two years, it took 28 contests in March Madness for perfection to be eliminated.

It's believed that the closest anyone has gotten to a perfect bracket occurred just three years ago.

During the 2019 tournament, an Ohio man correctly guessed all the games going into the Sweet 16, according to NCAA.com. But his streak of 49 correct picks was ended when Purdue beat Tennessee 99-94 in overtime of the second game in the Sweet 16.

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The NCAA tracking is based on millions of brackets posted online to the NCAA Bracket Challenge Game, ESPN, Yahoo and CBS. That does not include offline office pools or any other platforms running their own bracket challenge games.

What are the odds of a perfect bracket? 

According to NCAA.com, if you were to simply guess or flip a coin for each matchup, the odds of a perfect NCAA bracket are 1 in 9,223,372,036,854,775,808. 

However, NCAA.com also notes that the odds are more like 1 in 120.2 billion, if the person making the bracket takes into account info about which teams are better and tournament history. 


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