Q: How can I figure out the probability of me making my draw on the turn or the river?
A: As a rough guide, you can’t beat the “Rule of 4 and 2”. First, calculate the number of outs you have. If you have an open-ended straight draw it will be eight. If you’ve got four to a flush on the flop, then you’ve got nine outs to make your flush. But you could have several ways of improving your hand like a straight draw and a flush draw, so just work out how many outs you have. On the flop, you multiply your outs by 4 to get a rough percentage probability of making your hand by the river. From the turn, multiply your outs by 2 to figure out how likely it is you will complete your hand on the river.