3-Bet and 4-Bet Strategy in Tournaments
The 3-bet and 4-bet war decides who controls preflop pots. Build value and bluff re-raises by stack depth, with a worked 4-bet-shove example.
On this page · 7 sections
A 3-bet is the first re-raise preflop; a 4-bet is the re-raise on top of that. Together they decide who owns the pot before a flop is ever dealt. In tournaments, shallow stacks make this war sharper than in cash: many 3-bets and most 4-bets are all-in or commitment-level, so choosing the right hands and sizes is less about postflop finesse and more about value, fold equity, and stack math.
The two reasons to 3-bet
Every 3-bet falls into one of two buckets:
- Value. You hold a hand that beats the opener’s continuing range and you want more money in: big pairs, strong broadways, sometimes suited aces depending on depth.
- Bluff. You hold a hand that plays poorly as a flat call but has fold equity against a wide opener. Ideal bluffs have blockers — an ace or king that reduces how often the opener holds a premium — plus some backup equity, like suited connectors.
The seat matters. A 3-bet against a habitual button stealer needs far less to be profitable than a 3-bet against a tight under-the-gun raise, because the stealer folds so much more often. This is standard preflop theory applied under tournament pressure.
Sizing by stack depth
Sizing shrinks as stacks get shorter, because a fixed multiplier commits more of a small stack. Antes also nudge sizes up slightly since the pot is bigger.
| Effective stack | 3-bet in position | 3-bet out of position | Note |
|---|---|---|---|
| 50+ BB | ~3x the open | ~3.5–4x | Room to play postflop |
| 30–50 BB | ~2.7–3x | ~3.3x | Bluffs still work |
| 25–30 BB | small, or 3-bet shove | 3-bet shove | Fold-to-4-bet cost rises |
| Under 25 BB | 3-bet shove | 3-bet shove | Re-raise is a commit |
Once you’re around 25 big blinds or fewer, a standard 3-bet often leaves you awkwardly pot-committed against a 4-bet shove. The cleaner play is to skip the small re-raise and jam directly — the re-steal that powers a medium stack and blends into short-stack push/fold.
When to 4-bet
Facing a 3-bet, you have four options: fold, call, 4-bet for value, or 4-bet bluff.
- 4-bet for value with the top of your range — the hands that beat a 3-bettor’s calling range and welcome a shove. In shallow spots this is a 4-bet jam.
- 4-bet bluff only against opponents who 3-bet bluff and will fold their weaker re-raises. Prefer ace or king blockers to cut down their premium combinations.
- Call rarely and mostly deep, when your hand plays well postflop in position and you don’t want to fold out worse.
- Fold the middling hands that can’t profitably continue — this is the biggest chunk of your range and there’s no shame in it.
Worked example: a 4-bet shove with 32 big blinds
Blinds 2,000/4,000 with a 4,000 ante. A loose-aggressive cutoff opens to 9,000. It folds to you on the button with A♠ K♦ and a 32-big-blind stack (128,000). You 3-bet to 24,000. The cutoff instantly 4-bets to 52,000.
What now? Your 3-bet already invested 24,000. The pot before you act is 9,000 (open) + 24,000 (your 3-bet) + 52,000 (their 4-bet) + 6,000 blinds + 4,000 ante ≈ 95,000, and you’d risk your remaining 104,000 to jam.
- Fold? Far too weak. A-K is at or near the top of your range and crushes a wide 4-bettor.
- Call? No — with 32 big blinds and this much already in, calling leaves an awkward stack-to-pot ratio and forfeits fold equity.
- 5-bet shove all-in? Correct. You get folds from their bluffs, and when called you’re flipping at worst against pairs and dominating their weaker aces and broadways. Against a loose 4-bet range, A-K is a clear commit.
The read is the key input: against a nit who never 4-bet bluffs, this same A-K spot gets much closer, and folding can even be right. Ranges guide you; the opponent decides.
Adjusting to opponents
- Vs. loose openers: widen your value 3-bets and add more bluffs — they fold too much and open too wide.
- Vs. tight openers: narrow to value and cut bluffs — their range already dominates yours.
- Vs. players who never fold to 3-bets: stop bluff 3-betting entirely and only re-raise for value.
- Vs. frequent 4-bettors: tighten your 3-bet bluffs and be ready to call or jam your value hands.
Common 3-bet and 4-bet mistakes
- 3-betting a hand too strong to fold but too weak to call a jam. Classic dead-money leak in the 25–35 BB zone.
- Using one 3-bet size for every stack depth. Deep and shallow demand different sizing.
- 4-bet bluffing players who don’t fold. A bluff needs fold equity; some opponents simply don’t have a fold in them.
- Ignoring blockers. An ace or king in your hand changes the math on a re-raise bluff.
- Forgetting ICM. Near the money, marginal 4-bet bluffs that print in a chip-EV vacuum can be losing plays.
The bottom line
The 3-bet and 4-bet war rewards clarity: know whether each re-raise is value or a bluff, size it to your stack depth, and let the opponent’s tendencies set your frequencies. Shallow stacks turn most re-raises into commitment decisions, so pick your spots and jam with conviction rather than dribbling chips into no-man’s-land. See where preflop aggression fits in the tournament strategy hub.
Frequently asked
When should you 3-bet in a poker tournament?
3-bet when you have a value hand strong enough to want more money in against the opener's range, and when you have fold equity for a bluff against players who open wide and fold to pressure. Position, stack depth, and the opener's tendencies matter more than the two cards alone — a 3-bet that folds out a wide late-position steal is profitable with a much weaker hand than one against a tight early raise.
What is a 4-bet in poker?
A 4-bet is the second re-raise preflop: the opener raises, someone 3-bets, and the opener (or another player) raises again. In tournaments 4-bets are often all-in or nearly so because stacks are shallow, which turns the 4-bet into a commitment decision rather than a bet you can fold to a 5-bet.
How big should a 3-bet be in tournaments?
Roughly 3x the open when you're in position and 3.5x to 4x when out of position, adjusted for antes. Shallower stacks use smaller multipliers because a large 3-bet already commits a big share of your chips. Under about 25 big blinds, many 3-bets become direct 3-bet shoves instead of a raise you'd fold to a 4-bet.
Should you 4-bet bluff in a tournament?
Sometimes, but sparingly and with the right blockers. A 4-bet bluff works best when the 3-bettor is capable of 3-bet bluffing themselves and will fold their weaker re-raises. Hands with an ace or king blocker are preferred because they reduce the combinations of strong hands your opponent can hold. Near pay jumps, ICM makes 4-bet bluffs riskier since busting costs real equity.