One perfect women’s bracket survives into Sweet 16 amid a sea of upsets
As the women’s NCAA Tournament heads into the Sweet 16, only one perfect bracket remains in major tracking pools after a day of upsets trimmed the field from 235 to seven and then to one; by contrast, the men’s perfect bracket run ended over the weekend with notable upsets like Tennessee over Virginia and Iowa over Florida. ESPN and the NCAA together track hundreds of millions of entries (ESPN ~26.5 million; NCAA ~36 million), underscoring just how unlikely a flawless 63-0 run is—roughly 1 in 9.2 quintillion for random guesses or about 1 in 120 billion with semi-educated guesses.