Feeling lucky? Maybe not anymore. In January, Warren Buffett announced his billion dollar bracket challenge and revealed he is willing to part with some serious zeros to anyone who can fill out the perfect bracket for this year’s NCAA Men’s basketball tournament. But after just one day of March Madness play, most brackets have been wiped out.

One of the very first games of the tournament, Ohio State vs. Dayton, ended with the sixth ranked Buckeyes falling to the eleventh ranked Flyers. The deafening sound you heard after the buzzer? Eighty three percent of those angling for one billion dollars ripping their brackets in half as their chance for the jackpot prize disappeared.

Buffet’s company Berkshire Hathaway joined forces with Quicken Loans’ Dan Gilbert, owner of the Cleveland Cavaliers, to offer one billion dollars to the person who correctly guesses the winner of all 67 games in this spring‘s March Madness.

Submissions were limited to one per household and capped at 10 million entrants–nearly 8.7 million people accepted the challenge. Should there be a winner, he or she will have the option of taking 40 annual payments of $25 million or a lump sum of $500 million. Multiple winners would split the money. Quicken will also award $100,000 to the contest’s 20 most accurate brackets to use toward buying, refinancing, or remodeling a home.

“This will be the most fun. Just imagine if there’s one person left at the last game,” Buffett, 83, said January 21. “I will go to that final game with him or her and I’ll have a check in my pocket…. I think we’ll be rooting for different teams.”

What are your chances of winning a cool billion? About one in 4,294,967,296.

Are you still in the running? What would you do with the winnings? Tell us in the comments below!