Poker Term

SB 30bb Steal

SB 30bb Steal

A raise from the small blind with an effective stack of about 30 big blinds, aimed at winning the blinds and antes uncontested.

Overview

SB 30bb Steal refers to a preflop raise made from the small blind when the effective stack size is approximately 30 big blinds. This play is common in tournaments and cash games when the table folds around to the small blind, who then attempts to steal the big blind's blind (and any antes). The stack size of 30bb is significant because it allows for a balanced strategy involving post-flop play while still being shallow enough that the stealer must be selective.

Motivation

Stealing from the small blind is profitable because the big blind (and possibly the button if they folded) has already invested dead money. With 30bb, the small blind can raise to 2.2–3bb, risking a relatively small amount to win the 1.5bb (or more with antes). The goal is to force the big blind to fold, or to play a pot in position (since the big blind will act first post-flop after defending).

Typical Stealing Range

A typical SB 30bb steal range expands compared to earlier positions. It often includes:

However, the exact range depends on the big blind's tendencies. Against a tight defender, the SB can steal with a wider range; against a loose or aggressive defender, the range should tighten.

Considerations at 30bb

30bb is a middle stack depth. It offers flexibility: the SB can call a 3-bet and play post-flop with a manageable stack-to-pot ratio (SPR). It also allows for 4-bet shoving over a 3-bet, but that play is often better with hands that have good equity against a calling range (e.g., AXs, pocket pairs).

Compared to deeper stacks (50bb+), the SB cannot afford to raise-fold too often because the big blind's 3-bet forces a decision for a significant portion of the stack. Compared to shorter stacks (10-20bb), the SB is not yet in push/fold territory, so raises remain standard.

Post-Flop Strategy

When the big blind defends, the small blind (now the aggressor) has a positional disadvantage post-flop (out of position). Therefore, the SB should c-bet frequently on boards that favor their range, especially low or connected boards. With 30bb, the pot after preflop raise is about 6-7bb, leaving an effective stack of ~27bb. A typical c-bet of 3-4bb on the flop is standard. The SB can also check back some hands for pot control or to induce bluffs.

Adjustments vs Different Opponents

  • vs Tight Big Blind: Widen steal range significantly; they fold too often.
  • vs Loose Big Blind: Tighten range, but be prepared to play post-flop with value hands.
  • vs Aggressive Big Blind (frequent 3-bets): Use a raising range that can withstand 3-bets, such as premium hands and some suited aces for 4-bet shoves. Avoid weak hands that cannot call or raise.

Conclusion

SB 30bb Steal is a fundamental part of winning poker strategy. It exploits dead money and applies pressure on the big blind. Success depends on reading opponent tendencies and adjusting range, preflop sizing, and post-flop play accordingly.

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