Cold 4-Bet Poker Explained with 5 Hand Examples (2026)
The cutoff opens to 2.5bb. The button makes it 8bb. You look down at A♠K♠ in the small blind, with two strong ranges already in front of you. Raising now has a precise name, and it carries far more weight than an ordinary 4-bet.
Quick Answer
A cold 4-bet in poker is a preflop reraise made by a player entering the pot for the first time after an open raise and a 3-bet. Cold 4-bet ranges are usually tight because the raise must get through two uncapped ranges. Position, stack depth, and each player’s aggression determine whether to raise, call, or fold.
What is a cold 4-bet in poker?
A cold 4-bet happens when a player who has made no voluntary investment enters with the fourth bet. The Americas Cardroom glossary gives the same action-based definition: a raise, a reraise, then a new player raises before the original raiser acts again.
The counting begins with the forced big blind. An open raise is the 2-bet, the first reraise is the 3-bet, and the next raise is the 4-bet. “Cold” tells you the fourth bettor did not make the open or 3-bet. A highly ranked r/poker explanation uses the simple sequence of Player 1 raising, Player 2 3-betting, and Player 3 cold 4-betting.
Compare that with a standard 4-bet. If you open the button, the big blind 3-bets, and you raise again, you have 4-bet your own open. You are already invested and closing one branch of the action. A cold 4-bettor enters behind both ranges and may still leave both opponents with decisions.
How does a cold 4-bet differ from other preflop raises?
The defining difference is action order. A cold 4-bet comes from a new player after an open and 3-bet. That extra live range makes the play stronger on average and changes how each opponent should continue.
| Action | Example sequence | Player entering? | Ranges to clear |
|---|---|---|---|
| 3-bet | CO opens, BTN raises | Yes | The opener |
| Standard 4-bet | CO opens, BTN 3-bets, CO raises | No | The 3-bettor |
| Cold 4-bet | CO opens, BTN 3-bets, SB raises | Yes | The opener and 3-bettor |
| Cold call | CO opens, BTN 3-bets, SB calls | Yes | No one folds immediately |
Which hands belong in a cold 4-bet range?
Premium pairs and AK sit at the center of many cold 4-bet ranges because they can continue when either opponent shoves. Bluffs appear only when the opener and 3-bettor have enough folds. A suited ace can block AA and AK while retaining equity when called, but a blocker alone cannot make the raise profitable.
Start with the exact positions. An under-the-gun open followed by a hijack 3-bet represents a different pair of ranges than a cutoff open followed by a button 3-bet. The first spot gives a cold 4-bettor less room to bluff. The second can contain wider opens, more 3-bets, and more folds.
Your own position matters too. A small-blind cold 4-bet will play out of position when called, while a button cold 4-bet against an early open and cutoff 3-bet keeps position after the flop. Learn how strong hands and suited blockers enter ordinary reraising ranges in our 4-bet strategy guide, then tighten the range for the extra opponent.
Rare spots need precise inputs. Drill preflop decisions by position, stack depth, and prior action on your phone.
How large should a cold 4-bet be?
A useful cold 4-bet size pressures the 3-bettor’s middle hands without committing extra chips that only strong hands call. After a 2.5bb open and an 8-9bb 3-bet at 100bb effective, study sizes near 20-24bb in position and 22-26bb out of position. Those bands are examples. Solver inputs and player tendencies can move them.
Upswing Poker’s 4-bet sizing guide frames the goal well: choose a size that leaves the opposing range between calling and folding. A tiny raise can give both players attractive calls. A huge raise may fold every hand you wanted to keep in while exposing a bluff to an expensive shove.
Stack depth controls the ceiling. At 40bb, a raise to 22bb commits more than half the effective stack and leaves an awkward remainder. Tournament payout pressure can change both players’ willingness to stack off. At 150bb, a larger size may still leave room for postflop play. Use the effective stack, not the biggest stack shown at the table.
When can a cold 4-bet bluff work?
A cold 4-bet bluff needs two ranges with enough folds, blockers to their strongest continues, and a size that does not risk too much. Late-position battles supply the clearest candidates because the opener can be wide and the 3-bettor can attack that wide range.
Player evidence matters more than a generic label such as aggressive. Look for a 3-bettor who has shown non-premium reraises and an opener who releases to pressure. One old forum hand or a single showdown does not establish a frequency. Use tracked samples online and repeated action live.
Low-stakes live games often feature narrow 3-bet ranges. Against a player who reraises only QQ+ and AK, a suited ace bluff runs into too much strength. Build a value-heavy range until the table shows wider 3-betting. The PokerListings cold 4-bet overview also emphasizes that the action commonly signals a very strong hand, which explains why unsupported bluffs receive so little margin for error.
Five cold 4-bet poker examples
These hands show the questions a player should answer before choosing a range. They are study examples, not fixed charts. Change the opener, 3-bettor, stack, or rake and the preferred action may change.
1. A♠K♠ in the small blind at 100bb
The cutoff opens 2.5bb and the button 3-bets to 8bb. Both players can hold wide late-position ranges. You are out of position, and calling invites the big blind plus both aggressors into a large pot.
Cold 4-bet for value in many strategies. A raise near 22-24bb charges calls and gives you a clear response to a shove. Confirm the exact cash-game setup before memorizing the size.
2. Q♣Q♦ on the button at 100bb
Under the gun opens and the hijack 3-bets. Both ranges begin stronger than a late-position battle, but queens remain near the top of your possible holdings.
A cold 4-bet can build value, though calling may preserve weaker hands in some lineups. If either player uses a very tight stack-off range, decide how you will respond to a 5-bet before raising. Our 5-bet strategy guide covers that next branch.
3. A♥5♥ in the small blind at 100bb
The cutoff opens, the button 3-bets often, and the cutoff has folded to several reraises. A5s blocks AA and AK combinations and can make a nut flush or wheel when called.
This hand can enter a cold 4-bet bluff mix in an aggressive lineup. Fold it when the 3-bettor has shown a premium-only range. Calling out of position against two live ranges usually creates the weakest branch.
4. J♠J♦ in the big blind at 60bb
A tight under-the-gun player opens and a cautious middle-position player 3-bets. Sixty blinds leave less room to raise and fold, and both ranges contain many hands that dominate or race with jacks.
Avoid an automatic cold 4-bet. Folding can be correct against extremely tight ranges, while calling creates a multiway pot out of position. Use observed frequencies and tournament pressure before choosing among three uncomfortable options.
5. A♣Q♣ on the button at 40bb
The hijack opens in a tournament and the cutoff 3-bets. A cold 4-bet would commit a large share of your stack, while payout pressure may tighten every range.
Treat the decision as a stack-off branch, not a small probing raise. AQ suited may raise, call, or fold across different solutions. Match the exact ante, stack, positions, and payout model before using a chart.
How should you respond to a cold 4-bet?
Respond with the range that reached the decision. The opener and 3-bettor do not hold the same hands, receive the same price, or close the action in the same way. The opener still faces the 3-bettor behind, while the 3-bettor has already represented more strength and may act after the opener.
Continue with hands that can withstand a tight raising range and realize equity at the offered price. Premium pairs and AK often continue. Medium pairs and broadways lose value when the cold 4-bettor is tight, especially with another uncapped player still active. Avoid defending because you have already invested. Those chips belong to the pot.
Write down the full sequence before reviewing the hand: positions, effective stack, open size, 3-bet size, cold 4-bet size, rake or antes, and player reads. Leaving out one action can turn a cold 4-bet into an ordinary 4-bet and send you to the wrong range.
How do you practice cold 4-bet decisions?
Learn common opens and 3-bets first, then add the cold 4-bet branch. Group drills by position so you can see why early-position action produces tighter ranges than cutoff-versus-button action. Record the hands that sit near the boundary instead of spending all your time on AA.
Preflop Wizard lets you drill decision trees by format, position, and stack depth on your phone. Build the baseline through repeated hands, then make measured adjustments when a live opponent 3-bets too tightly or an online regular attacks late opens too often.
Cold 4-bet poker FAQ
What is a cold 4-bet in poker?
A cold 4-bet is a preflop reraise made by a player entering the pot for the first time after an open raise and a 3-bet. For example, the cutoff opens, the button 3-bets, and the small blind raises again without having invested beyond the forced blind.
Why is it called a cold 4-bet?
Poker players use cold to describe entering after multiple bets without taking an earlier voluntary action. The blinds count as the first bet, the open raise is the second, the 3-bet is the third, and the new player makes the fourth bet cold.
Which hands should cold 4-bet?
Premium pairs and AK form the value core in many cold 4-bet spots. Some strategies add suited ace bluffs because an ace blocks AA and AK, but the exact range changes sharply with positions, stack depth, sizing, rake, and each opponent's range.
How large should a cold 4-bet be?
Use a size that gives the opener and 3-bettor a hard decision while leaving a playable stack if called. In a 100bb cash game, a cold 4-bet often lands near 20-24bb in position or 22-26bb out of position after a 2.5bb open and 8-9bb 3-bet. Treat those as study examples, not universal rules.
Can you cold 4-bet bluff in live poker?
You can, but a bluff needs evidence that the opener folds and the 3-bettor attacks wide enough. Many low-stakes live 3-bet ranges are strong, which makes a value-heavy cold 4-bet range safer until observed hands show that both players can release.