• Odds of picking a perfect bracket? 9,223,372,036,854,775,808 to 1. That’s nine quintillion to one! How big is that number? It is a billion times as big as 9 billion! Think of it this way: if every man, woman, and child on the planet randomly filled out one million brackets each, the odds would be greater than 1000 to 1 that even one would have a perfect bracket.
• Defining an upset as beating a team at least 4 seeds higher, there’s an average of 8.7 per year. There’s never been a year with less than 5 upsets.
• The last 10 champions have been won by 9 different schools. Connecticut is the only team to cut down the nets twice in the last decade.
• The FBI estimates that more than $2.5 billion is illegally wagered annually on March Madness each year. Less than 4% of that amount is wagered legally in Nevada.
• According to the NCAA, more than 10% of Americans participate in March Madness “office pools.”

From: http://www.webwire.com