Eaten by a shark, winning the Powerball and other events more likely than a perfect March Madness bracket

As the NCAA Men’s Basketball tournament approaches, brackets across the globe will be filled out with hopeful hearts before being unceremoniously trashed when a 15-seed upsets a 2-seed or a tossup between the 8- and 9-seeds goes awry.

Truly, having a perfect bracket is one of the least likely occurrences to ever happen in life, but just how unlikely is it?

Betting odds released Tuesday by Bookies.com, a sports betting news and resource website, show that the odds of getting a perfect bracket using your basketball knowledge are worse than being eaten by a shark or winning either the Powerball or Mega Millions lotteries.

The odds of getting a perfect bracket using your intuition are 120.1 billion to 1, the website claims. Winning either of the big ticket lottery games has odds around 300 million to 1 — much, much, much better odds, albeit still extremely unlikely.

This undated photo shows a great white shark swimming through a school of Tommy roughs off Neptune islands, South Australia. (Getty Images)
This undated photo shows a great white shark swimming through a school of Tommy roughs off Neptune islands, South Australia. (Getty Images)

The website cites Georgia Tech professor Joel Sokol and the NCAA for the detailed breakdown of the perfect bracket odds.

According to Sokol, most college basketball models predict the correct winner about 75% of the time. Based on that data, the odds of getting all 63 correct fall somewhere between 1 in 10 billion to 1 in 40 billion.

But NCAA data compiled by tracking the last five years of the official Bracket Challenge Game reveals sports fans pick correctly only about two-thirds of the time, bringing those odds down to the 1 in 120.2 billion figure.

To make those odds even longer, if you were to let a coin flip decide each of your picks, you’re creating odds on par with a celestial event.

A randomized March Madness bracket offers 9.2 quintillion to 1. To put that number into better perspective, a quintillion can also be described as “a billion billions.”

Below is a list of those perfect bracket odds compared to other rare and unlikely events:

Event

Odds-To-One

Perfect NCAA Bracket (Coin Flip)

9.2 quintillion

You Being Born

400 quadrillion

Winning Powerball & Mega Millions

75.6 quadrillion

Perfect NCAA Bracket (Basketball Knowledge)

120.1 billion

Having Sextuplets

3.939 billion

Winning Mega Millions

302,575,350

Winning Powerball

292,201,338

Eaten By A Shark

264 million

Becoming President (US only)

32.6 million

Struck By Lightning Twice

19 million

Birthing Identical Quadruplets

15 million

Dying In A Plane Crash

11 million

Becoming An Astronaut (US only)

7.697 million

Dying From A Bee Sting

6.5 million

Attacked By A Shark

5 million

Grizzly Bear Attack (Yellowstone)

2.7 million

Becoming A Movie Star

1.5 million

Flipping Heads 20 Straight Times

1.04 million

Die From Flesh-Eating Bacteria

1 million

Struck By Lightning

960,000

Being Dealt A Royal Flush

649,739

Winning An Olympic Medal

662,000

Blackjack 3 Times In A Row

22,722

Flopping A Royal Flush

19,600

A Hole In One

12,500

A 4-Leaf Clover

10,000

Living To 100 (US Only)

3,777

If you simply love the annual tradition of filling out a March Madness bracket, the math suggests you go with your gut and trust your basketball knowledge.

But if you’re a betting man or woman who is only interested in maximizing your earning potential, let the coin decide. It couldn’t hurt.

The NCAA projects that if every American filled out a completely unique bracket with 66% accuracy, it would take about 366 years for that perfect bracket to arrive.

Why not you?

For more on these long perfect bracket odds, click here.

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