A bluff is a bet made with a hand that expects to lose at showdown. It succeeds when the opponent folds, which means it is a bet on their decision rather than on your cards.
Most losing bluffs fail for the same reason: the story they tell does not match the betting that came before them, or they are aimed at an opponent who was never going to fold.
The Arithmetic
A bluff risks a bet to win the pot as it stands. The share of the time it must work is the bet divided by the pot plus the bet.
| Bluff size | Risked to win | Must work |
|---|---|---|
| A third of the pot | 33 to win 100 | 25.0% of the time |
| Half the pot | 50 to win 100 | 33.3% of the time |
| Three quarters | 75 to win 100 | 42.9% of the time |
| The full pot | 100 to win 100 | 50.0% of the time |
| Twice the pot | 200 to win 100 | 66.7% of the time |
That is the floor, not the target. A semi-bluff also wins sometimes when called, so it needs to work less often than the table suggests.
Choosing the Hand
Not every weak hand is a bluffing candidate. The best ones have no value if checked down and remove cards from the hands an opponent would call with.
- Prefer hands with backdoor outs on the flop; they can improve when the bluff is called.
- Prefer blockers — holding an ace of the flush suit makes the strongest calling hands less likely.
- Avoid bluffing with hands that could win at showdown, such as a small pair; those are better as checks.
- On the river, bluff with the busted draws, not with the hands that beat a bluff-catcher.
Telling a Consistent Story
Every bet in a hand is a claim about what you hold. A bluff is believable when the claims add up across the streets.
- Start before the flopA raise from early position represents strong cards; a call from the big blind does not.
- Match the flopBetting a board that suits your pre-flop range is credible; betting one that misses it entirely is not.
- Keep the sizing consistentIf your value bets are two-thirds of the pot, your bluffs should be too.
- Finish the storyA bluff abandoned on the river turns earlier bets into losses. Decide on the flop whether the hand is one you are willing to follow through with.
Who to Bluff
| Opponent | Bluff? | Why |
|---|---|---|
| Folds too often | Yes, frequently | The fold equity is already there. |
| Calls too often | Rarely | Value bet thinner instead; bluffs are paying their calls. |
| Plays few hands, carefully | Yes, on boards that miss tight ranges | Their range is narrow and often missed. |
| Raises often | Carefully | Bluffs face raises; semi-bluffs handle that better. |
| Short-stacked in a tournament | Seldom | A short stack calls more readily; see ICM. |
Bluffing frequency is a response to opponents, not a personality trait. At low stakes the most common profitable adjustment is to bluff less and value bet more, because calls are plentiful.
Frequently Asked Questions
How often should I bluff?
Often enough that strong hands get paid, and no more. Against opponents who rarely fold, the correct frequency is close to zero on the river, while semi-bluffs on earlier streets remain profitable.
What is a bluff-catcher?
A hand that beats only bluffs — typically a medium pair facing a river bet. Calling with one is a decision about the opponent's bluffing frequency, not about the hand itself.
Is it a bluff if I have a draw?
That is a semi-bluff: the bet can win immediately, and the hand can still improve if it is called. It carries less risk than a pure bluff and is usually the better form of aggression.