Postflop poker strategy: a simple framework for every flop

Good postflop strategy starts with five questions on every flop: who has the stronger range, who has more of the very best hands, who is in position, how deep the stacks are compared with the pot, and how many players are in the hand. The answers tell you whether to bet, how big, and what to do when someone bets into you.

Most of the money in No-Limit Hold’em is won and lost after the flop, and most mistakes come from playing one street at a time. This guide gives you a framework that works on any flop, the numbers behind it, and a hand played all the way to the river. The deeper guides on each street and each move are linked as we go.

Five questions to ask on every flop

Before you act on the flop, run through the same short list. It takes a few seconds once it’s a habit.

1. Whose range does this flop favour? Think about all the hands each player could have, not only yours.
2. Who has more of the nuts? Sets, two pair and straights decide how big pots get.
3. Who is in position? The player acting last sees more before each decision.
4. What is the stack-to-pot ratio? It tells you how many bets are left and how committed you are.
5. How many opponents? Each extra player makes everyone’s range stronger in practice.

Then put your own hand into a category: strong value, medium strength, draw, or nothing. The sections below take each question in turn.

Range advantage and nut advantage

A range is every hand a player could hold given the action so far. The button opens a wide range; the big blind calls with a range that’s narrower than the button’s at the top, because the big blind re-raises its best hands. That difference decides who the flop helps.

To make it concrete, take a 100 big blind cash game where the button opens and the big blind calls. We used a typical button opening range (22+, A2s+, K2s+, Q4s+, J6s+, T6s+, 96s+, 85s+, 75s+, 64s+, 54s, A2o+, K8o+, Q9o+, J9o+, T8o+, 98o; about 44% of hands) and a big blind calling range that leaves out the hands it would 3-bet (22–99, A2s–AJs, K5s+, Q7s+, J7s+, T7s+, 97s+, 86s+, 75s+, 65s, 54s, A2o–AJo, K9o+, Q9o+, J9o+, T9o, 98o). Then we counted every combination on two flops.

On K♠ 7♦ 2♣ the button has more top pairs and almost all of the strongest hands, because the big blind would have re-raised with AK and KK before the flop. That’s a range advantage and a nut advantage together. The button can bet often, and a small bet does the job: the big blind has few strong hands to fight back with.

On 8♥ 7♥ 6♣ the picture splits. The button still has far more overpairs, but the big blind has more two pairs, sets and straights, because its range is full of suited connectors and small pairs. The button should bet less often here and check many hands that would happily bet on the king-high flop.

You won’t count combinations at the table, and you don’t need to. A quick test does most of the work: which player is likely to hold the top pair on this board with a good kicker, and who could have the sets and two pairs? High-card boards like K-7-2 or A-8-3 usually favour the pre-flop raiser. Low, connected boards like 7-6-5 or 9-8-6 usually favour the caller, especially the big blind, who defends with many small suited hands. Paired boards like 8-8-3 favour whoever has more trips, which depends on the ranges before the flop.

Range advantage tells you how often to bet. Nut advantage tells you how big.

Position changes everything

The player in position acts last on the flop, turn and river. That means seeing what the opponent does before every decision: free cards when he checks, cheap folds when he shows strength, and value bets sized after reading his line.

Out of position you face the harder guesses. You often have to check hands that would like to bet, and call bets without knowing whether the next street brings another. That’s why the same hand, such as K♣ J♦ on a king-high flop, plays well from the button and awkwardly from the big blind. It’s also why calling raises out of position with medium hands loses money for many players. Our guide to poker positions shows how each seat plays, and defending the big blind covers the seat that’s out of position most.

Stack-to-pot ratio

The stack-to-pot ratio, or SPR, is the smaller stack divided by the pot on the flop. It tells you how much betting is left. With an SPR of 2, one pot-sized bet and a call put everyone all in; with an SPR of 17, there’s room for three or more bets.

The type of pot sets the SPR. With 100 big blinds stacks:

What changes is how much a single good pair is worth. With an SPR around 2, top pair is usually strong enough to get all the money in; folding it after the flop rarely makes sense. With an SPR of 17, putting the whole stack in with one pair is a big risk, because a player calling three big bets usually has two pair or better.

A common rule of thumb puts it this way: below about 3, play top pair for stacks; between 3 and 6, it depends on the opponent and the board; above 6, plan to keep the pot smaller with one pair. Treat these as starting points, not laws; against an opponent who bluffs a lot, one pair goes further.

Sort your hand into a category

Once you know the board and the ranges, put your hand into one of four groups. Each group has a default plan:

• Strong value (sets, two pair, top pair with a top kicker on a dry board): build the pot. Bet, and keep betting on safe cards. A♠ K♦ on K♠ 7♦ 2♣ is here.
• Medium strength (second pair, a weak top pair, an underpair): win at showdown more than you bet for value. Bet small or check, and keep the pot manageable. Q♥ Q♣ on the same flop is here.
• Draws (flush draws, open-ended straight draws, good gutshots): bet some as semi-bluffs, call with others when the price is right. 9♥ 8♥ on K♥ 7♣ 2♥ is here.
• Nothing (no pair, no draw): bluff only where your range has the advantage and the opponent folds often enough; otherwise give up.

Draws are the category where the numbers decide most. Say you’re in the big blind with 9♥ 8♥ on K♥ 7♣ 2♥ and the button bets $1.80 into $5.50. You call $1.80 to win $9.10, so you need 19.8%. Your nine hearts give you 19.1% to hit on the turn and 35.0% by the river. One card alone is just short of the price, but the money you win when the flush comes, and the chance of seeing the river, make the call clear. A check-raise is a reasonable alternative against a player who c-bets every flop.

The category matters more than the exact cards. Medium-strength hands are where most money is lost, because players either bet them three times and get called by better, or fold them to the first bet. The worked hand below is a medium-strength hand.

C-bet: how often and how big

A continuation bet, or c-bet, is a flop bet by the player who raised before the flop. Some players fire one on every flop; others never bluff. Both lose money against thinking opponents.

Base the frequency on the range advantage and the size on the nut advantage. On K♠ 7♦ 2♣, the button can bet most of its range for about a third of the pot. On 8♥ 7♥ 6♣, it checks more often, and when it bets, it uses a bigger size with its strongest hands and best draws.

Every bet size also asks your opponent a question. The table below shows how often a pure bluff has to work to break even at each size, and, from the other side, how much of his range the opponent has to continue with so that your bluffs don’t profit automatically.

In money: bet $5 into a $10 pot as a bluff and you risk $5 to win $10, so you need folds one time in three. The defending figure is the minimum defense frequency, explained in our guide to minimum defense frequency. Small bets fold out less but cost less; big bets fold out more but need more.

Not every c-bet has to go in on the flop. Checking strong hands on boards that favour the caller and betting the turn instead is covered in the delayed c-bet, and the texture side in how to read the board.

When you’re the one facing the bet

Most strategy guides talk about betting. Half your postflop decisions, though, come when someone bets into you. There are three ways to fight back: call enough, check-raise, and float.

How much to defend

Against a third-pot c-bet, the table says you need to continue with about 75% of your range to stop the bettor’s bluffs from making an automatic profit. That’s a lot: it means calling with most pairs, most draws and some ace-high hands.

That number is a baseline against an unknown or balanced player. Adjust it for the opponent. Against a player who c-bets every flop, defend wider and raise more. Against a tight player whose bets are almost always strong, fold more, including hands the table says to keep. Against a player who never bluffs, the minimum defense frequency doesn’t apply at all.

Check-raising

A check-raise out of position does what a bet can’t: it wins the pot right away against the bettor’s air, and builds a big pot with your strong hands. It works best on boards that favour your range, such as the connected 8♥ 7♥ 6♣ for the big blind. Raise your sets, two pairs and straights, and pair them with your best draws, such as A♥ 5♥ or K♥ T♥, so the bettor can’t simply fold everything but the nuts. Our guide to the check-raise covers sizes and hand choice.

Floating

Floating means calling a flop bet in position with a weak hand, planning to win the pot later when the bettor gives up. It works against players who c-bet often and then check the turn with their misses. It fails against players who keep betting. The details, including which hands to float with, are in floating in poker, and river spots are covered in bluff-catching.

Multiway pots

Everything above assumes one opponent. With two or more, the odds that somebody has a strong hand go up fast, and the rules change:

• C-bet less often. A bluff has to get through two or three players.
• Bet strong hands for value, but bet medium hands less: someone is more likely to have you beaten.
• Draws gain value, because more players pay you when you hit.
• Don’t bluff into several players on boards that hit their ranges.

Top pair against three opponents is a different hand from top pair heads-up. If two players call your flop bet and one raises the turn, a pair is often beaten. Slow down and keep the pot smaller unless your kicker and the board give you a clear reason not to.

Planning the turn and river

Good players decide on the flop what they’ll do on the turn. Before you bet, ask three things: which turn cards you’ll bet again, which you’ll check, and what you’ll do if you’re raised. If you can’t answer, a check is often better than a bet.

The plan should fit the stack-to-pot ratio. With strong value and a medium SPR, plan three bets that get the stacks in by the river. With a medium-strength hand, plan to bet one street, maybe two, and check the rest. That’s pot control: keeping the pot at a size your hand can stand.

The detail on the last two streets is in turn and river strategy, and river sizes in river bet sizing.

Worked hand: from flop to river

To see the framework in one hand, here’s a medium-strength hand from a $0.50/$1 six-max game with $100 stacks. You open to $2.50 on the button with Q♥ Q♣. The small blind folds and the big blind calls. The pot is $5.50 and the SPR is about 18.

The flop favours your range, as the table above showed, so you can bet small with most hands. Queens lose to any king but beat a single seven or deuce, small pairs and the draws to a wheel. A $1.80 bet, a third of the pot, gets called by plenty of worse hands and protects against overcards. He calls, and the pot is $9.10.

Now his range is the hands that called the flop: kings, sevens, deuces, small pairs, and draws like 6-5 and A-3. If you bet again, the kings call or raise and most worse pairs fold. That’s betting a medium hand into the part of his range that beats you. Checking keeps the pot small, lets his weaker hands catch up a little, and gives a missed draw a chance to bluff the river.

You call $4.50 to win $13.60, so the call needs you to be good 24.9% of the time. Whether you are depends on what this player bets here. We counted the big blind’s range after the flop call, with your queens and the board removed: 65 combinations beat you (any king, sets of nines, sevens, fours and deuces, and 9-7 suited), and 40 are missed draws (A-5, A-3, 8-6 suited and 6-5 suited) with nothing but a bluff.

• Against a player who bluffs his missed draws: if he bets every king and every draw, 40 of his 105 betting hands are bluffs, 38%. Calling earns about $2.40 on average.
• Against a player who rarely bluffs: if he only bluffs his 8 suited draws, his bets are 11% bluffs, and calling loses about $2.50 on average.

Same hand, same pot, opposite answers. That’s the point of the turn check: it kept the pot small enough that the river decision costs little either way, and your read on the player, not your cards, decides it. If he usually bets his kings on the turn, his river bets hold even more bluffs. Our guide to reading opponents shows how to build that read.

Postflop mistakes to avoid

Most of the money lost after the flop leaks through a few habits:

C-betting every flop on autopilot. A bet on 8♥ 7♥ 6♣ with ace-high into the big blind’s strongest range gives away money; check and see the turn.

Defending by the table against players who don’t bluff. The minimum defense frequency protects you from bluffs; against a tight player whose bets are always strong, fold more.

Calling because you’ve already put money in. The chips in the pot belong to the pot. Each decision only asks whether the next call is worth its price.

Playing one street at a time. A flop bet without a turn plan often ends with a big pot and a hand that can’t fold or bet.

Winning players think in ranges and price every decision. They bet when the board favours them, check medium hands to keep pots small, and save hero calls for opponents they’ve seen bluff.

For the theory behind these defaults, see GTO poker strategy; for adjusting them to real opponents, exploitative play vs GTO. The maths of each decision lives in our guides to equity, pot odds and fold equity.

Postflop strategy FAQ