Fold Equity

The additional value a bet or raise gains from the chance that opponents fold and you win the pot uncontested.

Definition

Fold equity is the portion of a bet's or raise's expected value that comes from opponents folding rather than from having the best hand at showdown. It is what makes semi-bluffs (betting a drawing hand that can still improve) and outright bluffs profitable: you can win either by making everyone fold now, or by hitting your draw later. Fold equity depends on how likely the opponent is to fold, which in turn depends on their range, the board, your perceived range, and bet sizing. When opponents rarely fold (for example, when they are already committed or 'pot-stuck'), fold equity drops toward zero, and bluffing loses value.

Worked example

A player with a flush draw raises all-in on the turn; even though the draw is not yet a made hand, the raise is profitable because the opponent will fold a meaningful share of the time, and the draw can still complete when called.

Why it matters

Learners discover that aggression wins pots in two ways, not just at showdown. Professionals quantify fold equity to decide when semi-bluffs and bluffs are profitable and adjust sharply against opponents who fold too much or too little.

Related

Note: Fold equity cannot be measured exactly in real time; it is estimated from opponent tendencies and is highly opponent-dependent.