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Tis the season to fill out your bracket for March Madness.

Whether it’s an office pool, an official pool or a pool among your friends, 9NEWS wants you to be well prepared.

Professor Andrew Sherbo, with the Daniels College of Business at the University of Denver, says getting all 63 slots correct on your bracket is a shot in the dark.

He says the odds of having a perfect bracket is one in nine quintillion. That’s a nine followed by 18 zeros – 9,000,000,000,000,000,000.

Professor Sherbo says you have a more likely chance of getting struck by lightning than getting a perfect bracket.

Even though there are millions of people that may have a close to perfect bracket, there’s never been an official perfect one reported.

Sherbo thinks filling out the bracket is more of an art than science.

He says there are three things you need to study: the coach’s history, the team’s record and the seeds. But remember, all it takes is one loss to mess up your entire bracket.

Sherbo tends to focus his bracket on coaches that have proven they can win in the post-season.

He says this year, most likely one, of the four number-one seeds, will probably get to the Final Four.

Our partners at USA Today say it could take 5,000 years for someone to get a perfect bracket.

Good luck!