What Is the Small Blind in Poker?

The small blind is the seat directly to the left of the button, and it posts a forced bet of half a big blind before any cards are dealt. It speaks second-to-last before the flop and first on every street after it, which is the worst pairing of price and position at the table. Every winning player loses money from this seat; the skill is in losing less of it.

How the seat works

In a $1/$2 game the small blind posts $1 and the big blind posts $2, both before seeing a card. Preflop the action opens with UTG and travels clockwise, so you speak second-to-last and the big blind closes the betting.

After the flop that order flips. You act first on the flop, turn and river against everyone still in the hand, including the button who raised you. Your strategy goes on display before anyone else has to show theirs, and that does not change for the rest of the hand.

Why it costs you money

Two problems compound. Half a big blind is already dead money in the middle, which makes every cheap continuation feel like a bargain, and acting first means you realise less of whatever equity you hold.

Say a $1/$2 table folds to the button, who raises to $5, and you look down at K♣9♣. Calling the extra $4 leaves the big blind free to squeeze behind you, and if they only call you are three-way and out of position with a hand that flops second best far too often. Fold it, or make it $17 and take the pot down immediately. The middle option is the leak.

How to defend it cheaply

Against a raise, default to three-betting or folding. Flatting invites the big blind in behind you and locks you into the worst seat for three streets, so the hands that continue should be ones happy to build a pot now, plus a few suited blockers such as A♠5♠ that work as bluffs.

• Unopened pots are different. Folded to you, only the big blind remains, and completing costs half a blind for 3-to-1 odds. A wide limping range and a raising range can both be correct here, and solver-built preflop charts split the seat exactly that way.
• Keep marginal hands in small pots. Out of position you collect fewer of the pots your equity deserves, so check-calling twice with a weak top pair beats bloating the pot with it.
• Never defend on price alone. Three-to-one looks generous until you remember you act first on every street that follows.

The seat rewards discipline over creativity. Fold the hands that only survive with position, attack the big blind hard when the table folds to you, and count every half blind you keep as money won.