odds of two players flopping a flush
 

I'm sure a lot of you folks play position and all that and i do to some extent, but if with only 3 hearts on the board and you have a flush with king and queen high, would you not be confident against someone else having Ace-X of that suit in their hand?

Re: odds of two players flopping a flush
 

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I'm sure a lot of you folks play position and all that and i do to some extent, but if with only 3 hearts on the board and you have a flush with king and queen high, would you not be confident against someone else having Ace-X of that suit in their hand?

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It turns out that if you've seen 5 cards of a suit (2 in your hand, and 3 on the board), the chance of another opponent also holding two of the same suit is pretty low (3% against a single opponent). You only have to start to worry when the fourth card of the suit falls on the turn or river that someone with a single higher card of that suit will make a higher flush.


finer analysis here