Break-even point
The break-even point of a bluff is how often your opponent has to fold for the bet to neither win nor lose.
It is the bet divided by the pot after the bet. A third of the pot needs 25% folds, half the pot 33%, three quarters 43% and a full pot 50%.
The formula assumes you always lose when called. A draw still wins some of those pots and therefore needs fewer folds.
Work it out
Bluff break-even calculator: Enter the pot and your bet. The calculator shows how often your opponent has to fold for a bet with no equity to break even.
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Related terms
Practise decisions like this in the trainer: ten hands at a time, with the answer and the reason.