Who acts first in poker? Everyone who sits at a new table asks it, and the short answer is: it depends on the street. Before the flop, the player to the left of the big blind acts first; after the flop, the first player still in the hand to the left of the button. Everything else (heads-up, straddles, all-ins, acting out of turn) follows from those two rules. Let's go step by step.
The button and the blinds set the order
The button (or dealer button) is the disc that marks who "deals" the hand, and it moves one seat to the left every hand. To its left sits the small blind (SB), then the big blind (BB): two forced bets that put chips in the pot before anyone sees cards. Without them, nobody would have a reason to play a hand.
The whole order of action is measured from the button. So when you sit down, the first thing to locate is not your hand: it's the button.
Preflop: the player to the left of the big blind acts first
Before the flop the blinds have already "acted" by posting, so the turn passes to the next seat: UTG (under the gun, because it carries the most pressure). From there, action moves clockwise until it reaches the big blind.
At a nine-handed table the preflop order is:
- UTG → UTG+1 → UTG+2 (early positions)
- Hijack → Cutoff (middle and late)
- Button
- Small blind
- Big blind
The big blind acts last and has the option: if nobody raised, they can check and see the flop for free, or raise. If someone raised, they decide like anyone else: call, re-raise or fold. How to make the most of closing the action is covered in big blind defense.
Postflop: the first live player to the left of the button acts first
From the flop on, the blinds protect no one. There is one rule: action starts with the first player still in the hand to the left of the button and ends with the button. If the small blind is still in, they act first; if they folded, the big blind; if both are gone, the next player left.
That makes the button the best seat at the table: it acts last on the flop, turn and river, meaning it decides with everyone else's information in hand. It's the deeper reason position matters so much.
The exception: heads-up
With two players left, the button posts the small blind and acts first before the flop, while the big blind closes. After the flop it flips: the big blind acts first and the button last. It's the only spot where the button opens the action, and it trips up plenty of players in heads-up play.
The situations that start arguments
- Straddle. If a player posts a straddle (a voluntary extra blind before the cards, usually from UTG), they act last preflop, as if they were a third blind. The first to act is the player to their left. Postflop nothing changes.
- All-in or folded players. Skipped. The order continues with the next live player.
- When someone raises. The round isn't over until everyone still in the hand has matched the highest bet or folded. If you raise and get re-raised, you act again.
- Acting out of turn. Announcing "check" or "raise" when it isn't your turn is a violation: in most rooms and clubs that action is binding if nothing changes before it gets back to you, and it hands free information to your opponents. In a home game, the healthiest rule is that out-of-turn action counts.
- Missed blinds. If you stepped away and came back, many rooms make you wait for the big blind or post a blind to re-enter. In club apps the software handles it with a timer, but knowing the order is still your job: the app tells you when to act, not what it means to act before or after everyone else. If you're new to app poker, how Suprema Poker works walks through the table layout.
Why the order decides which hands you play
Acting first means playing blind: you don't know how many players will enter or how aggressively. Acting last means watching the whole movie before you decide. That's why the hands you open from UTG should be fewer and stronger than the ones you open from the button, where you can steal the blinds with hands you'd never play early. If you still open the same range from every seat, start with starting hands by position; and if the hand rankings aren't automatic yet, the beginner's guide to poker comes before any of this.
The lesson
Preflop starts to the left of the big blind and ends with the big blind; postflop starts with the first live player to the left of the button and ends with the button; heads-up, the button opens preflop and closes postflop. Those three sentences mean you'll never freeze at a table again. The fourth one, the one that matters, is where your evolution starts: whoever acts last decides better, so play more hands from there and fewer from where you act first.
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