Poker Term

Fold to Check-Raise from SB

Fold to Check-Raise from SB

A poker statistic that measures how often a player in the small blind folds when facing a check-raise on the flop.

Overview

'Fold to Check-Raise from SB' is a specialized statistic commonly used in online poker tracking software (e.g., Hold'em Manager, PokerTracker). It tracks the frequency with which a player, seated in the small blind (SB), folds to a check-raise after having been the pre-flop aggressor (or simply having checked post-flop) and then facing a raise from an opponent who initially checked. This metric is most relevant in No-Limit Hold'em cash games and tournaments, especially in heads-up or short-handed play.

Context

The small blind is a disadvantageous position post-flop because it acts first on every betting round. When the SB checks the flop and an opponent (usually the big blind or a player in position) then check-raises, the SB must decide whether to fold, call, or re-raise. A high fold-to-check-raise percentage suggests that the SB is frequently giving up to aggression, which can be exploited by opponents. Conversely, a very low or zero percentage may indicate that the SB seldom folds, either by calling with weak hands or reraising aggressively.

Strategic Importance

This statistic helps players identify tendencies in their opponents. If an adversary has a high 'Fold to Check-Raise from SB' (e.g., above 60-70%), a check-raise bluff becomes more profitable when they are in the SB. On the other hand, a low percentage (under 30%) suggests the opponent is sticky and may require stronger hands for value raises. Players can use this data to adjust their own check-raise ranges against specific SB opponents.

It is important to note that this stat is sample-size dependent. A meaningful interpretation typically requires at least 20-30 observed opportunities. Small sample sizes can produce misleading figures. Additionally, the stat should be considered alongside other metrics such as 'Fold to C-Bet' and 'Check-Raise Frequency' for a complete picture.

Example

In a 6-max cash game, you are in the big blind. The small blind (SB) raises pre-flop and you call. On the flop, SB checks. You decide to check-raise with a draw. If the SB folds 70% of the time in this scenario (as per their 'Fold to Check-Raise from SB' stat), your bluff is likely profitable. However, if the SB rarely folds, you might check-call or check-raise with a made hand.

Related Concepts

  • Check-Raise Frequency: The rate at which a player check-raises from any position.
  • Fold to C-Bet: The frequency a player folds to a continuation bet after calling a pre-flop raise.
  • SB vs BB Stats: Position-specific statistics that compare small blind versus big blind play.
  • Exploitation: Adjusting one's strategy based on opponent tendencies, such as over-folding to check-raises.

Related Terms