I doubt there has ever been a perfect bracket in the Earth's history. For starters, you would need a year in which an unusually large percentage of favorties win, with all 4 top seeds making the final 4. I think there was one year in which 3 #1 seeds make it, but even in that year you could probably look back and see some huge upsets in the earlier rounds that would be close to impossible getting them all correct.
Rather than making every game 50/50 and calcualting the odds from there, you could use a moneyline of -150 as an average moneyline and calacualte your chances from there. That gives you a 60% chance of guessing each winner. Even using that figure, the odds of picking 63 in a row correctly is probably in the billions, if not trillions.
Rather than making every game 50/50 and calcualting the odds from there, you could use a moneyline of -150 as an average moneyline and calacualte your chances from there. That gives you a 60% chance of guessing each winner. Even using that figure, the odds of picking 63 in a row correctly is probably in the billions, if not trillions.