Skip to main content
tx.io

Poker strategy guide · 6 min

3-bet defense

Facing a three-bet is not a simple hand-strength test. Good defense starts with position, opening range, sizing, and how well the hand can continue after the flop.

What to know

Facing a three-bet is not a simple hand-strength test. Good defense starts with position, opening range, sizing, and how well the hand can continue after the flop.

When to use this guide

  • You know the spot type but want a cleaner reason for the decision.
  • You want practice prompts before opening a trainer session.
  • You need related concepts to review after a missed hand.

Check the range that opened

A cutoff open can defend more hands than an under-the-gun open because the cutoff range begins wider. Before calling, four-betting, or folding, compare the defended hand to the range you were supposed to open.

Position changes realization

In position, suited broadways, pairs, and suited connectors can see turns and rivers more often. Out of position, dominated offsuit hands lose value quickly because they face more pressure with less information.

Four-bets need value and blockers

A four-bet range should contain hands that can stack off for value and selected bluffs that block the opponent’s strongest continues. Random aggression creates expensive pots with hands that cannot withstand a shove.

Practice prompts

  • Compare button versus big blind and cutoff versus small blind three-bet defense at 100 big blinds.
  • Choose one suited ace and one offsuit broadway hand. Explain why one realizes equity better after calling.
  • List the value hands and blocker bluffs in a four-bet range before checking a chart.

Common questions

What should guide 3-bet defense decisions?

Check the range that opened, then adjust for position, three-bet size, stack depth, blockers, and how well the hand realizes equity postflop.

When should a hand four-bet instead of call?

Four-bets should combine value hands that can stack off with selected blocker bluffs that reduce the opponent’s strongest continues.

Next study path

After this page, use the related guides below to connect the concept to a decision you can practice.

  1. 1 3-bet defense trainer Practice poker 3-bet defense decisions by position, open range, sizing, blockers, stack depth, and equity realization.
  2. 2 Preflop range trainer by position Practice poker preflop ranges by position: UTG, cutoff, button, small blind, big blind, three-bets, and blind defense.
  3. 3 Blockers practice Practice poker blockers with removal drills for bluffs, bluff-catches, value blockers, missed draws, and close river decisions.