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since there a 65 teams (including play in game) 64 without what are the odds of creating a bracket yourself that is completely correct?

i am just curious so i have no idea. lol

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I've seen some wide ranging answers to this question, but the lowest estimate I came across was 1 in a trillion. One was 1 in 7 trillion and ESPN says just picking at random you're chances are 1 in 9.2 quadrillion. Suffice to say that no documented proof exists that anyone has ever picked a perfect bracket. You have a better chance of enjoying cocktails with space aliens in you den.

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Im pretty sure I remember Probabilities..

You first have to look at a bracket.

Counting up all the games played (32 in first round, 16 in second, 8 in third, 4 in the fourth, 2 in the fifth, and 1 in the final round)

total #matches = 63 (64 if you are going to write in the play in match as well)

the probability of guessing the the correct winner in one match is 1/2.

the probability of guessing two in a row is (1/2)*(1/2)

so correctly guessing the outcome of all 63 (or 64) matches is 1/(2^63 (or64))

the odds are 1 in 1.08*10^19 for 63 and 1 in 5.42*10^20 for all 64 match ups being correct.

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Last year there was at least one perfect bracket.

There absolutely was not a perfect bracket last year (at least no reported one), and that was one of the most pedestrian tournaments in modern Tournament (post-1985) history.

There never has been a perfect bracket, and likely never will be.

Further proof from a man much smarter than I:

http://www.stat.yale.edu/~jay/News/WSJbb.pdf

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There absolutely was not a perfect bracket last year (at least no reported one), and that was one of the most pedestrian tournaments in modern Tournament (post-1985) history.

There never has been a perfect bracket, and likely never will be.

I would tend to agree. It's kinda like BigFoot, I'll believe it when I see it.

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since there a 65 teams (including play in game) 64 without what are the odds of creating a bracket yourself that is completely correct?

i am just curious so i have no idea. lol

there is a mathematical equation to this answer.

something like this...

64 teams means 32 games

round one: (32x31x30x29x28x27x26.....)2 big number

32 teams means 16 games

round two: (16x15x14x13x12x11....)2 smaller number, but still large

16 teams 8 games

round three: (8x7x6x5x4x3x2)2 do this math on this round!

8 teams means 4 games

round four: (4x3x2)2 forty eight different combinations

4 teams mean 2 games

round five: (2)2 four different combintions for final four

2 teams mean one game

round six: 2 combinations

now add all of these together!

that is the possibility for a perfect bracket....pretty much impossible!

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there is a mathematical equation to this answer.

something like this...

64 teams means 32 games

round one: (32x31x30x29x28x27x26.....)2 big number

32 teams means 16 games

round two: (16x15x14x13x12x11....)2 smaller number, but still large

16 teams 8 games

round three: (8x7x6x5x4x3x2)2 do this math on this round!

8 teams means 4 games

round four: (4x3x2)2 forty eight different combinations

4 teams mean 2 games

round five: (2)2 four different combintions for final four

2 teams mean one game

round six: 2 combinations

now add all of these together!

that is the possibility for a perfect bracket....pretty much impossible!

correction:

The straight odds calculations is relatively easy, for each 64 games you must pick the right outcome out of the 2 possible outcomes (win or loss). So our Statisitics 101 class tells us that is two to the power of 64 (2^64) different possible combinations. Only one those will be the perfect bracket.

You have 1 in 18 quintillion chance to pick a perfect bracket

Oh and if you didn’t calculate that, 2^64 = 1.8 x 1019 or more precisely 18,446,744,073,709,551,616.

Edited by superman123
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