Let’s take a look at an example where I made that calculation this time I’m on the flop with an open-ended straight draw and my opponent has shoved all-in. The first scenario looks at calculating the odds of me making my hand across one street, but I frequently need to know the likelihood of making my hand across two streets. Let’s take a look at two recent scenarios where this happened. When I’m playing in my regular poker games, I frequently use these calculations to get a better understanding of my odds of making my hand. In that case, you can work out how many cards will give you the best hand and calculate the odds of any of those cards appearing. Suppose you have a hand like a flush draw or a straight draw. So, now that we can determine the probability of any card coming on the flop, turn, or river, how can we use that information? Well, knowing this math is particularly useful when working out your likelihood of making a draw. 8 total outs.įlush Draw: Having two cards to a suit with two suits already on the flop. Open Straight Draw: When you have two ways to complete a straight. Inside Straight Draw (aka ‘Gutshot’): When you have one way to complete a straight. Overcard Draw: When you have a card above the flop. Backdoor: A straight or flush draw where you need two cards to help your hand out.