Under 0.1% of March Madness brackets remain perfect after first day of games

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Fewer than 1% of NCAA Tournament men's brackets were still perfect after Thursday's 16-game slate, according to several services where fans attempt the all-but impossible task of predicting every March Madness game correctly - or, barring that, win their office pools.

ESPN's tracker listed 25,802 perfect brackets remaining out of more than 24m filled out on its site following the final game of the day, Texas Tech's win over UNC-Wilmington.