Fold to 4-Bet from BB
Fold to 4-Bet from BB
The frequency with which a player in the big blind folds when facing a 4-bet after having 3-bet.
Definition
Fold to 4-Bet from BB is a poker HUD statistic that measures the percentage of times a player in the big blind folds when they face a 4-bet, typically after they have 3-bet. It is expressed as a percentage: (Number of folds to [4-bet](/term/4-bet)) / (Total opportunities to [fold](/term/fold) to a 4-[bet](/term/bet)). This stat is often filtered by position, so "from BB" means the player is in the big blind at the time of the decision.
Interpretation
A high Fold to 4-Bet from BB (e.g., >70%) indicates that the big blind player is reluctant to continue against a 4-bet and often gives up after 3-betting. This can be exploited by opponents who 4-bet light or with a wide range, knowing that the BB will fold often. Conversely, a low Fold to 4-Bet (e.g., <40%) suggests the BB is willing to call or 5-bet, meaning opponents should be more cautious with their 4-bets and prefer stronger hands.
The average or "default" Fold to 4-Bet from BB varies by stakes and player pool tendencies, but a typical range might be 50-65% for many regs. Note that this stat is sample-sensitive; a player with few opportunities may have extreme values due to variance.
Strategic Implications
- Exploiting a high fold frequency: If an opponent has a high Fold to 4-Bet from BB, you can increase your 4-bet bluff rate when in position against them. However, be aware that the BB may adjust by 5-betting or flatting more.
- Defending against frequent 4-bets: If you are the BB and facing many 4-bets, you might lower your Fold to 4-Bet by including more calls with suited connectors or small pairs, or by 5-bet jamming with appropriate stack sizes.
- Stack size considerations: At deeper stacks (100bb+), the fold to 4-bet tends to be lower because 5-betting is more viable. At shorter stacks (e.g., 40bb), the stat often increases as players are more willing to commit.
- Combine with other stats: Use alongside Fold to 3-Bet from BB, 3-Bet from BB, and overall aggression to get a fuller picture. For example, a player with a high 3-Bet from BB but also high Fold to 4-Bet is likely 3-betting a wide range but folding to resistance, making them exploitable.
Related Statistics
- Fold to 3-Bet from BB: The frequency of folding to a 3-bet when in the big blind.
- 4-Bet Range: The percentage of hands a player 4-bets.
- 5-Bet Range: The percentage of hands a player 5-bets (often all-in).
- Fold to 4-Bet after 3-Bet (overall): Similar but not filtered by position.