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last mo.

March Madness Day One Leaves Only 0.0938% of Brackets Perfect

Historic upsets, including McNeese State’s win over Clemson, have drastically reduced the pool of perfect brackets in the 2025 NCAA tournament.

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Overview

  • The 2025 NCAA March Madness tournament began with over 34 million bracket submissions, but only 0.0938% remain perfect after the first day.
  • McNeese State’s 69-67 upset of Clemson was a major factor in eliminating a significant portion of brackets early in the day.
  • Other key results, including wins by BYU, Gonzaga, and Arkansas, further reduced the number of perfect brackets to a fraction of a percent.
  • Duke University is currently favored to win the tournament, according to betting odds from DraftKings.
  • The odds of creating a perfect bracket are astronomically low—1 in 9.22 quintillion with random picks or 1 in 120.2 billion with basketball knowledge.