Poker Term

BTN 4Bet

BTN 4Bet

A BTN 4Bet refers to a re-raise (the fourth bet in a betting round) made by the player on the button, typically against an initial raiser and a 3-bettor.

Overview

In no-limit hold'em, the BTN 4Bet is a powerful and aggressive move executed from the button (the most advantageous position post-flop). A 4-bet is the fourth bet in a betting round, usually following a raise (2-bet), a call (optional), and a 3-bet. The button player uses positional advantage to apply pressure, often with a polarized range of premium hands and bluffs.

Strategic Context

When to 4-Bet from the Button

The button's 4-bet range typically includes:

  • Value hands: QQ+, AK (sometimes AQs, JJ) – hands strong enough to call a 5-bet shove or induce opponent mistakes.
  • Bluff hands: Ax suited (especially A5s-A2s), KQo, KJs, or small pairs – hands that block opponent's calling range and have good playability if called.

Sizing

Standard 4-bet sizing from the button is 2.2x to 2.5x the 3-bet size. Example: If the open is 3bb, a 3-bet to 9bb, a button 4-bet would be ~20-22bb. Adjust based on stack depths and opponent tendencies.

Response to 5-Bet

  • Value hands: Call or shove, depending on stack-to-pot ratio.
  • Bluffs: Fold to a 5-bet, as the opponent has shown extreme strength.

Positional Advantage

Being on the button allows the 4-bettor to:

  • Act last post-flop, gaining information from opponents' actions.
  • Play more aggressively pre-flop, knowing they have position.
  • Extract maximum value when holding a monster.

Common Mistakes

  • 4-betting too wide: Against tight opponents or deep stacks, excessive 4-betting can be exploited.
  • Inconsistent sizing: Use same size for bluffs and value to avoid giving away information.
  • Ignoring stack sizes: Short stacks may require shoving instead of standard 4-bet.

Example Hand

In a 100bb deep cash game, UTG opens to 3bb, CO 3-bets to 9bb, and Hero on the button 4-bets to 22bb with A♠K♦. This is a standard value 4-bet. If CO shoves, Hero calls. If CO folds, Hero wins the pot without a flop. If CO calls, Hero plays in position with a strong hand.

Conclusion

BTN 4Bet is a versatile weapon in a player's arsenal, combining position with aggression. Correctly balancing value and bluffs makes it difficult to counter, but overuse or poor sizing can lead to exploitation. Understanding opponent ranges and adjusting to stack depths is key to mastering this move.

Related Terms