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The three-bet: re-raising before the flop

A three-bet is the first re-raise before the flop. The blinds count as the first bet, the open raise as the second, and the re-raise as the third. It builds pots with strong hands.

Reviewed Oct 14, 2026

Answer first

90s
ActionNameExample at $1/$2
Big blindFirst bet$2
Open raiseTwo-bet$6
Re-raiseThree-bet$18 to $24
Re-re-raiseFour-bet$50 to $60

Key numbers

Three-bets in four numbers

About 3xSize in positionOf the open raise
About 4xSize out of positionOf the open raise
5% to 10%Common frequencyOf hands dealt
A-A to J-JCore value rangePlus A-K

In short

Key takeaways

  • A three-bet is the first re-raise before the flop.
  • Use larger sizes out of position, since you act first after the flop.
  • Mixing in some bluffs, such as suited aces, makes your three-bets harder to read.
  • Against a three-bet, fold weak hands and continue with strong ones.

Cheat sheet

Good three-bet hands

Glance the faces — compare in one second.

  1. 1Value: Q-Q

    Strong enough to build a big pot

  2. 2Value: A-K

    Dominates many opening hands

  3. 3Bluff: A-5 suited

    Blocks aces and can make a wheel or flush

Responding to a three-bet

Your handTypical response
A-A, K-KFour-bet
Q-Q, A-KFour-bet or call
J-J, T-T, A-Q suitedCall
Small pairs, weak suited cardsOften fold
Offsuit broadwayFold out of position

Depends on stack depth and opponent.

Why three-bet

Calling with strong hands lets weaker hands see a cheap flop. A three-bet charges them more or makes them fold.

It also wins pots right away when the opener gives up.

Sizing examples

OpenIn position three-betOut of position three-bet
$6$18$24
$10$30$40
$15 (live)$45$60

Live games often use larger sizes.

Live vs online

In live low-stakes games, three-bets are less common and often mean a strong hand. Online, players three-bet more often and with wider ranges.

Adjust to the table you are at.

Sequence

Making a three-bet

  1. Step 01

    Check the opener

    Tight or loose?

  2. Step 02

    Check your position

    In or out.

  3. Step 03

    Pick the size

    3x or 4x.

  4. Step 04

    Plan the flop

    Know your next move.

Stack depth

With short stacks of 40 big blinds or less, a three-bet often commits you. Many players just move all-in instead.

With deep stacks, three-bet bluffs carry more risk.

Your turn

Raise terms

  • Two-bet

    The first raise.

  • Three-bet

    The first re-raise.

  • Four-bet

    A re-raise of a three-bet.

  • Range

    All hands a player may hold.

Blind defense

From the big blind, three-betting against a late open is a common way to fight back. Use about 4x sizing since you are out of position after the flop.

When a three-bet is called, a small continuation bet of about one third of the pot often works, since the pot is already large.

Three-bet ranges by seat (100 big blinds, online)

OpenerYou on the buttonYou in the big blind
Early positionAbout 4% of handsAbout 5%
Middle positionAbout 6%About 7%
CutoffAbout 9%About 10%
Button—About 12%

Rough guides; adjust to each player.

Common mistakes

Three-betting only aces
Too easy to read.
Sizing too small
It invites calls.
Bluffing tight players
They continue strong.
Calling out of position too often
Fold or four-bet.

Keep reading

Related pages

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After the 90 seconds

Questions before and after you play

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01Basics

What is a three-bet?

The first re-raise before the flop, after the blinds and an open raise. Rules vary by cardroom, so check the posted house rules.

Why is it called a three-bet?

The big blind is the first bet, the raise the second, and the re-raise the third.

How big should a three-bet be?

About three times the raise in position and four times out of position. Rules vary by cardroom, so check the posted house rules.

02Strategy

Which hands should I three-bet?

Strong pairs and A-K, plus some bluffs like suited aces. Rules vary by cardroom, so check the posted house rules.

How often should I three-bet?

Many players three-bet 5% to 10% of hands, less in live games. Rules vary by cardroom, so check the posted house rules.

What do I do against a three-bet?

Fold weak hands, call some strong ones and four-bet the best. Rules vary by cardroom, so check the posted house rules.

03Rules

Is there a raise cap?

In limit games often yes; in no-limit, no. Rules vary by cardroom, so check the posted house rules.

What is a cold three-bet?

A three-bet by a player who had not yet put money in. Rules vary by cardroom, so check the posted house rules.

Does a three-bet happen after the flop?

The term is mostly used before the flop. Rules vary by cardroom, so check the posted house rules.

Sources

  1. Robert’s Rules of Poker Not from a registry (Reference source, not an official registry) · accessed Oct 14, 2026Raise rules
  2. PokerNews — 3-bet From the press (News report, not an official registry. Used for dates and events only.) · accessed Oct 14, 2026Definition
  3. UNLV Center for Gaming Research Not from a registry (Reference source, not an official registry) · accessed Oct 14, 2026Research library on casino games and gambling
  4. National Council on Problem Gambling — Help and resources Not from a registry (Reference source, not an official registry) · accessed Oct 14, 2026Free, confidential help: call or text 1-800-GAMBLER