What Is a String Bet in Poker?

A string bet is a bet or raise pushed forward in more than one motion without first declaring an amount. The dealer has no way of knowing where your action was meant to end, so the standard ruling is that only the first motion stands — your intended raise becomes a call. It is a mechanical error rather than a strategic one, which is precisely why it stings.

How a string bet happens

You are on the BTN with A♠K♠ on a K♦9♣4♥ flop. The CO bets $25 into a $40 pot, you decide to raise to $75, and you slide $25 across the line, pause to count out the rest, then reach back for the other $50. The dealer stops you. The pause ended your action, so $25 is a call.

Now the pot is $90 rather than $165, the SB sees a free-ish turn with a gutshot, and the hand you meant to charge is still in front of you. Your read was fine. You simply moved your hands twice.

What the ruling costs you

The immediate loss is the fold equity you never bought, plus the two streets of value a bigger pot would have carried. The quiet loss is worse: draws that should have paid to continue get in cheaply, and marginal hands you would have folded out reach showdown against you.

One misruled raise barely registers. A habit of them shaves real money off your win rate, and a poker variance calculator shows how much longer a downswing runs when your bb/100 slips even a single point.

How to avoid one

The rule exists because multi-motion betting is an old angle: push out a small stack, watch your opponent flinch, then add more. Dealers enforce it against honest players too, because it protects the game rather than your intentions.

• Speak the number first. Raise to seventy-five is binding the moment you say it, and your chips can then travel in as many trips as you like.
• Otherwise push once. With no declaration, everything you intend to bet must cross the line in a single forward motion.
• Never reach back. Once your hands move towards your stack again, treat the bet as finished.

Online this cannot happen, because the slider commits the full amount at once. That is exactly why it catches good players in their first live session, and why announcing your bet out loud is a habit worth building before you ever sit down.