BTN 100bb Steal

Overview

BTN 100bb Steal refers to the common preflop strategy of raising from the button (BTN) when the effective stack size is 100 big blinds (bb). This play exploits the positional disadvantage of the blinds, as the button acts last postflop. The primary goal is to collect the blinds and antes without opposition, building the pot while holding a range advantage.

Strategic Importance

Being on the button is the most profitable position in poker. With 100bb, the stack is deep enough to apply pressure but not so deep that opponents can easily defend with speculative hands. A standard steal raise size is 2.5x to 3x the big blind (e.g., 2.5bb or 3bb). Larger sizes are sometimes used against loose blinds, while smaller sizes can induce light defends from weak players.

Typical Stealing Range

In a GTO (Game Theory Optimal) framework, the button should open approximately 40–50% of hands when effective stacks are 100bb. This includes strong hands (high pairs, suited broadways), speculative hands (small pairs, suited connectors), and bluffs (weak aces, offsuit connectors). The exact range adjusts based on opponent tendencies: tighter ranges against aggressive 3-bettors, wider ranges against passive blinds.

Considerations

• Blind Defenders: If the blinds are tight, stealing becomes highly profitable. Against loose or aggressive defenders, tighten the opening range and consider using a larger size.
• Stack Depth: At 100bb, both the stealer and defender have room to play postflop. This depth allows for bluffing and value betting postflop, but also exposes the stealer to 3-bets and re-steals.
• Tournament vs Cash: In tournaments, antes increase the pot size, making steals more valuable. However, ICM (Independent Chip Model) pressure may discourage light opens near the money bubble.
• Sizing: A common steal is 2.5bb. Against blinds that fold too often, smaller opens (2bb) reduce risk. Against frequent 3-bettors, consider a mix of opens and 4-bets.

Risks and Adjustments

Stealing exposes the button to 3-bets from the blinds, especially from aggressive opponents. With 100bb, a standard response to a 3-bet is to either fold (if marginal), 4-bet bluff (with blockers like A5s), or call (with strong hands or deep-stack potential). Position helps mitigate this—being in position allows the stealer to see the flop and act last.

Conclusion

BTN 100bb Steal is a fundamental poker concept, balancing aggression with position. While highly profitable in vacuum, success depends on reading opponents and adjusting ranges. Mastering this strategy is key to exploiting the blinds and building a winning preflop game.