Open-ended straight draw
An open-ended straight draw is four cards in a row that can be completed at either end.
Eight-seven on a board of six, five, king can make a straight with any nine or any four: 8 outs. It hits on the next card about 17% of the time, and by the river about 32% from the flop.
Work it out
Outs calculator: Enter how many outs you have and where you are in the hand. The calculator shows the exact chance of hitting, next to the rule of 2 and 4.
Related terms
Practise decisions like this in the trainer: ten hands at a time, with the answer and the reason.