What is the chance of flush on flush with a single opponent?

And hitting the flush?

Both player have suited hole cards (same suite).

1 Answer 1


Your chance of a suited hole cards is 12 / 51 = 0.235
Just short of 1/4

Opponent same flush - two cards

combin(11,2) / combin(50,2) = 0.045 = 1 / 22

Chance you (both) make a flush by the river = 0.0393 = 25 : 1

This includes 4 and 5 on the board so another player with with a single flush could win.

You make a flush on the river with 89s only 3 on the board - what is the chance you opponent has an over flush?

If they play any two flush then like 2.0% but they are not likely to play like QJT little or under T and not connected so like 1.5%.

Opponent same flush - one card

Let's say one card and T or greater
You are playing 89s

Opponent chance = 5*39/50 = 0.16
That is random

If your opponent is only playing A-T then 0.40 chance they have single flush (higher than you).
Well pair are also in their range - but then they can make a boat to beat your flush so that is about a wash.

Make flush with the board only showing 3
You are safe as there cannot be an over flush
0.044 = 21.63 : 1
That number make sense as they say suited adds about 4%.

What are the chances of a 4 or 5 flush on the board
0.0048 = 207 : 1
You are in a situation of getting beat by a single card

Not going to face 4 or 5 flush on the board often but if you do be cautions - there is about a 40% chance you are beat if you range your opponent to A-T. Bet hard when the board hits 3.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.