SB 100bb 3-Bet Jam
SB 100bb 3-Bet Jam
A poker play where the small blind player, with an effective stack of 100 big blinds, moves all-in over an opponent's open-raise, representing a three-bet.
Overview
SB 100bb 3-Bet Jam refers to a specific aggressive move in no-limit hold'em: the small blind (SB) goes all-in for exactly 100 big blinds as a three-bet against an opponent's initial raise. This play is typically used in cash games or tournament situations where stack depths are around 100 big blinds, a common benchmark for deep-stacked play.
Context
The small blind is in a positional disadvantage post-flop, but by jamming as a three-bet, the SB effectively turns the hand into a preflop all-in confrontation, eliminating post-flop skill edges. This move is often employed with hands that are strong but not strong enough to call or make a standard three-bet, or as a bluff with hands that block the opponent's calling range.
Strategic Considerations
- Stack Depth: At exactly 100bb, the jam puts maximum pressure on the opponent while still being small enough that the SB's range can be balanced. Deeper stacks (e.g., 200bb) would make jamming less common, while shorter stacks (e.g., 30bb) would be a standard shove.
- Position: The SB's disadvantage means that flat-calling or small three-betting can be problematic, so jamming simplifies decision-making and denies the big blind an easy overcall.
- Opponent's Range: The SB should consider the opponent's open-raise range and their tendency to call or fold. Against a tight opener, a jam with a polarized range (strong value and bluffs) is common. Against a loose opener, the SB might widen their jamming range.
- GTO Considerations: In game theory optimal play, the SB's 3-bet jam range at 100bb often includes premium hands like AA, KK, AK, and some suited connectors or Ax hands as bluffs. The exact composition depends on the opponent's open size and tendencies.
Example
Blinds 1/2, effective stacks $200. A middle position player raises to $6. The small blind, holding A♠5♠, decides to jam for $200. This is an SB 100bb 3-Bet Jam. The large raise forces the opponent to fold many hands that would call a standard three-bet, while the small blind's hand blocks the opponent's Ax combos and has equity when called.
Risks and Rewards
The main reward is winning the pot immediately without a flop. The risk is being called by stronger hands and losing a large stack. Proper hand selection and read on opponents are critical to make this play profitable.