25bb Bubble Play

Overview

"25bb Bubble Play" is a common strategic term in tournaments, referring to the play when remaining players are near the money bubble and each player has approximately 25 big blinds (bb). This stack depth falls into the "medium stack" range—neither deep enough to call easily nor short enough to be forced all-in, thus requiring careful ICM (Independent Chip Model) considerations.

Core Strategy Adjustments

• Raise Range: During the bubble, players tend to have tighter calling ranges due to stack pressure. Therefore, as the raiser, you can open with a slightly wider range to steal blinds, especially against tighter opponents. However, be aware that opponents may be forced to defend due to ICM.
• Defense and All-In: When facing a raise, if holding medium-strength hands (e.g., small to medium pairs, suited connectors), it is usually better to go all-in rather than flat call, to avoid being squeezed by later players. At 25bb depth, all-in has high fold equity while maximizing ICM pressure.
• Position Factors: Later positions (CO, BTN) can steal blinds more frequently; early positions should be tighter. The small blind must be cautious to avoid being counterattacked by the big blind.
• Targeting Short Stacks: If there are extremely short stacks (<10bb) at the table, they may passively wait during the bubble, allowing you to aggressively steal blinds.

Typical Scenario Example

Assume you are on the bubble with 25bb, on the button, and everyone folds to you. The small blind and big blind each have 30bb. You hold A♠8♠:

• Usually it's appropriate to raise to 2-2.5bb, because the small blind and big blind's calling ranges will tighten due to ICM, giving you a high fold equity.
• If the small blind or big blind shoves, you should decide whether to call based on the opponent's range and pot odds. Generally, A8o may be at a disadvantage against a tight defense range during the bubble, so you tend to fold.

Notes

• Opponent Tendencies: Observe how tight or loose opponents play during the bubble. If opponents are extremely conservative, you can widen your steal range; if they are aggressive, you should tighten up.
• Remaining Players: The length of the bubble (how many eliminations remain until the money) affects strategy. Closer to the money, ICM pressure is highest, and strategy should be more conservative.
• Your Own Stack: If your stack is in the middle of the pack, avoid unnecessary risks; if you are among the shorter stacks, you need to be more aggressive to try to double up.