You have a flush draw on the flop with 9 outs.

How the rule of 4 works and how often you will improve your hand from flop till river (assuming you will see both cards): You will improve it on the turn: 4*2=8% and real poker odds are around 9%

You have a gutshot straight draw with 4 outs.

You will improve it on the turn: 6*2=12% and real poker odds are around 13%

You have two over cards on the turn with 6 outs.

You will improve it on the turn: 8*2=16% and real poker odds are around 17%

You have a straight draw on the flop with 8 outs.You will improve it on the turn: 9*2=18% and real poker odds are around 19% So all you have to know is how many outs you have, and you can easily calculate your poker odds with this rule without any help of additional poker tools.įew quick examples to highlight the rule of 2 and how likely you are to improve your hand on the next street: This could be used on the turn as well to get the estimate about your probability to improve on the river. Similarly, by multiplying your outs by 2, you will get a number showing how likely you are to improve your hand on the coming street. If you are on the flop just multiply your outs by 4 and you will get an approximate percentage how likely you are to improve your hand till the river by seeing both cards. There is quite an easy way to get the answer very fast and we can call it “the rule of 2 and 4”. However, you have a shortcut to apply correct poker math on the go and quickly calculate the probability of hitting your hand while playing. Therefore, I will explain a simple rule, which will help you a lot with Texas Holdem odds. It could take some time to remember all of the information regarding poker hands odds and outs.

Gut shot in poker