Raise First In
Preflop Strategy
Beginner

Everyone folds to you before the flop. Should you raise, and if so, which hands belong in that raise and how much should you make it? A useful raise-first-in strategy answers those questions together. Choosing a hand without considering the price of the raise and the players still to act leaves half the decision unfinished.
This guide is for newer no-limit Texas Hold’em cash-game players who understand the betting rounds. Unless stated otherwise, examples use a six-handed $1/$2 game, no ante or straddle, and $200 starting stacks for everyone: 100 big blinds, including posted blinds. Arithmetic excludes rake. Hand choices and opponent responses are teaching assumptions, not solved ranges or measured frequencies. Real fees and opponents can change close decisions.
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What Does Raise First In Mean?
Raise first in, or RFI, means opening with a raise when nobody has voluntarily entered the pot before you. Posted blinds do not count as voluntary entries. If the first three players fold and you raise from the button, that is an RFI opportunity.
If someone has already called the big blind, that player has limped. For the next decision, Playing Against Limpers explains when to raise, call behind or fold. Raising afterward is a raise against a limper, often called an isolation raise, rather than the unopened-pot decision covered here. If someone has raised, your own raise would be a three-bet. Do not use an opening chart for either situation without adjusting to the earlier action.
You can be first in from the small blind when everyone else folds. That is a special case because you will act first after the flop and already have half a big blind posted. The big blind cannot open an unopened pot after everyone folds: the hand has already ended and the big blind wins.
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Why Raise Instead of Just Calling?
An opening raise can win the blinds immediately, build a pot with hands that perform well against callers, and make it more expensive for other players to enter. Those purposes can overlap. A strong hand welcomes some calls; a marginal opening hand may depend more heavily on opponents folding.
Raising does not guarantee a heads-up pot, ownership of the next betting round, or a profitable continuation bet. If several players call, reassess the board and their ranges rather than treating the preflop investment as permission to keep firing.
For a beginner, a raise-or-fold approach from the non-blind seats is a useful simplification in an unopened cash-game pot. It avoids building a separate open-limping strategy before you understand the basic decision. This is a learning framework, not a claim that limping can never belong in poker. Small-blind play, shallow tournament stacks and specialized opponent adjustments need their own treatment.
PokerStars Learn’s opening-the-pot lesson discusses both the unopened-pot definition and the different reasons an opening raise can earn money. The important practical question is what your particular raise is trying to achieve.
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Position Changes Which Hands You Can Open
At a six-handed table, the preflop order is under the gun, hijack, cutoff, button, small blind and big blind. Under the gun is the first voluntary decision; the hijack follows it. Five players remain behind an under-the-gun opener, compared with only the two blinds behind a button opener.

More players behind means more opportunities for someone to find a strong hand, call with position, or re-raise. Later position can support opening additional hands because fewer opponents remain and you are more likely to act last after the flop. The small blind breaks the simple pattern: it has only one opponent behind but will be out of position on later streets.
The seat diagram counts opportunities to respond, not probabilities. Do not multiply an invented individual fold rate across the table and treat the result as a measured chance that everyone folds. Players’ cards and strategies are not independent identical trials.
Poker Position Explained covers the action order in more detail. Use the actual number of players dealt in. A nine-handed under-the-gun chart and a six-handed under-the-gun chart describe different situations despite sharing the label.
Build From Hands With Several Ways to Win
A range is the set of hands you would play in a particular way. An opening range should contain your strongest hands, with additional holdings chosen for the situation. High pairs and strong high-card hands can win substantial pots without needing an unusual flop. Suited hands can make flushes, and connected cards can make straights, but those possibilities do not make every suited or connected hand profitable.
Watch for domination: one hand sharing a high rank with another but having a weaker second card. K-J can make a king-high top pair and still lose to K-Q or A-K. Offsuit hands with weak kickers deserve particular care when several players can continue behind you.
Consider separate illustrative decisions with K♣ 9♣. Under the gun, five players remain who can call or raise, and a caller may have position. Folding can be a sensible conservative choice. On the button against blinds observed folding often and rarely re-raising, the same hand can be a candidate to open. If those blinds instead defend and re-raise well, that favorable assumption disappears. These examples explain what changes; they do not prescribe a universal cutoff for K-9 suited.
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Choose an Opening Size for the Situation
An open “to 2.5bb” means the total wager is two and a half big blinds. In this $1/$2 game, that is $5 total, not $5 on top of the $2 big blind. With no earlier raise and a $2 big blind, the ordinary minimum full opening raise is to $4. The $5 and $6 opens below are legal full raises.
A manageable starting method is to choose a standard size for each relevant situation before playing, then use that size across your opening range in that situation. Do not routinely open small with speculative hands and large with premiums: observant opponents can use the difference to narrow your holdings.
There is no single size that fits every game. A live game with frequent loose calls may reward a larger size with an appropriately selected range. A bigger raise also risks more when it fails, changes which hands continue, and builds larger pots. Against frequent re-raises, mindlessly increasing the size can make your raise-fold losses more expensive. Rake, stack depth and position all belong in the decision.
PokerStars Learn’s cash-game entry lesson discusses consistent sizing across hand strengths. Its particular suggested sizes are a teaching approach, rather than proof that one number is optimal everywhere. GTO Wizard’s range-morphology discussion also shows why opening ranges and sizes belong to a specified game model. This guide does not reproduce or claim to solve such a model.
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Worked Example: Opening to $5 or $6
Everyone folds to your button. You hold A♠ J♠ and have $200 before the hand. Compare two separate scenarios: you raise to $5 or to $6. In each, the small blind folds and the big blind calls. The big blind also started with $200. This is an accounting comparison; it does not claim both sizes receive the same calls in a real game.

After the $5 open, the big blind adds $3 to its posted $2. The flop pot is $5 + $5 + the folded $1 small blind = $11. Each active player has $195 remaining. After the $6 open, the big blind adds $4; the pot is $6 + $6 + $1 = $13, with $194 behind each.
The second pot is $2 larger because both active players contributed one extra dollar. You did not win that extra money merely by choosing the bigger size. It comes with a different investment, and potentially a different opponent range. The larger opening size can change how comfortable later bets feel even though both hands began 100bb deep.
Before raising, have a rough plan for resistance. Big Blind Defense explains how the defender compares calls, reraises and folds. Against a re-raise, consider who made it, the new size, position and remaining stacks. Opening A-J suited does not commit you to an all-in. Against a call, consider which boards favor each range. Being the raiser does not require betting every flop.
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What the Immediate-Fold Calculation Can Tell You
A simplified model helps show why opening size and fold rate cannot be separated. Suppose you open from the button and either both blinds fold or you lose the entire new opening wager. Ignore all postflop recovery, re-raise distinctions, ties and fees. This deliberately incomplete model measures immediate folds against a fixed-loss failure branch; it does not evaluate a playable hand’s full EV.

There is $3 in the pot before your raise. With a $5 opening wager, a successful immediate steal gains $3 from the decision point; failure in this model loses $5. If F is the probability that both blinds fold, break-even is F × $3 − (1 − F) × $5 = $0. Solving gives F = 5 ÷ 8 = 62.5%.
For a $6 wager, the equivalent number is 6 ÷ 9, or about 66.7%. A larger risk requires more immediate folds in this fixed-loss model. It may actually induce a different fold rate, and a real hand can recover value when called, so these percentages are not required fold rates for every profitable open. Neither figure tells you how often your actual opponents fold.
Do not transfer this calculation unchanged to the small blind. Your posted $1 is already a sunk cost there; raising to $5 requires $4 more rather than the button’s $5. The accounting baseline has changed. An ante or straddle also changes the numbers.
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Adjust the Range and Size Together
If callers continue with many worse hands and do not punish you with frequent re-raises, there can be value in opening larger with a range that performs well against those calls. Do not respond by adding every weak hand just because the table is loose. More callers can make marginal hands harder to play profitably.
If the players behind fold too often, opening additional reasonable hands may become attractive. Stealing the Blinds develops that late-position opportunity and the plan for resistance. Confirm the pattern across relevant opportunities; two folds are weak evidence. If those opponents start defending more, revisit the adjustment.
At shorter effective stacks, a re-raise can put much more of the available money at risk. Deep stacks provide more later betting room, but also more opportunity to lose a large pot with a second-best hand. Treat stack depth as part of the opening plan, not a reason to expand indiscriminately. Tournament antes and payout pressure require their own assumptions; this cash-game guide supplies no push-fold or bubble chart.
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Common RFI Mistakes
Using an unopened-pot chart after somebody has already limped or raised.
Opening the same hands from every seat because their absolute strength has not changed.
Treating “suited” as sufficient reason to play a weak holding.
Changing size according only to how strong the two cards look.
Raising larger to discourage calls while ignoring the extra money risked.
Counting only the caller’s added chips and forgetting its posted blind in the pot.
Treating a successful steal as evidence that the opening range must be profitable.
Opening without considering a re-raise, then calling simply to defend the first investment.
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Frequently Asked Questions
Does first in mean first to act at the table?
No. Players can fold before the action reaches you. You are still first in if nobody has voluntarily entered before your raise.
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Is a hand that opens profitably also a call against a raise?
Not necessarily. The price, opponent’s revealed range and players behind have changed. Opening, calling a raise and re-raising need separate decisions.
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Should a beginner memorize a complete opening chart?
A chart can be a useful baseline when its table size, stacks, rake, ante and opening size fit the game. Learn why its boundaries change rather than treating a screenshot without assumptions as universal advice. This article provides a decision process, not a complete hand-frequency chart.
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Must I continuation bet after raising first in?
No. The flop, number of callers, position and their likely hands determine the next decision. A preflop raise does not make later betting automatically profitable.
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A Practical Opening Checklist
Before entering an unopened pot, identify your seat, count who remains behind, check the effective stacks and consider whether your hand performs well against likely calls. Choose a size that fits that situation, then know what information a call or re-raise would give you.
After a session, review three opening opportunities: an early-position fold, a late-position raise and a hand that faced a re-raise. Record the exact size and assumptions. Compare the reasoning rather than the final pot won. The broader Preflop Poker Strategy for Beginners connects this opening process with the other decisions you will face before the flop.
