Our happy hour fact to amaze your drinking buddies with.

Officially, nobody has ever turned in a perfect NCAA Tournament bracket.

If you just predicted the result of each of the tourney's 63 games by a coin flip, your chance of perfection would be one in nine million trillion. (That would involve 18 zeros.) However, when you begin to apply logic to your selections, your odds don't get that much more manageable.

According to the Web site Book of Odds, even if you take the higher seed in each game, you still only stand a one-in-35-billion chance of a bracket with no red marks. To put that in perspective, you are about 18 times more likely to die in a water-sports accident.

We couldn't find the odds for the bracket filled out by the woman in your office who makes her picks solely based on team colors and where her friends went to college. We're still pretty sure, however, that she'd be the most likely to achieve this elusive perfection.