Bubble
The bubble is the stage of a tournament just before the paid places, when one more elimination means everyone left wins money.
The bubble is the point in a tournament just before players start winning prizes. If 15 places are paid and 16 players remain, the tournament is "on the bubble": the next player eliminated gets nothing, and everyone else is guaranteed a payout. The unlucky player who finishes one place outside the money is called the bubble boy or bubble girl.
Why the bubble changes the game
Before the bubble, losing your chips means leaving with nothing. One spot later, it means leaving with a prize. That large jump in value makes many players very cautious. They fold hands they would normally play and avoid all-in confrontations, hoping someone else will bust first.
This caution is partly correct. The Independent Chip Model shows that near a pay jump, the chips you could lose are worth more than the chips you could win. But it also creates an opportunity for players willing to apply pressure.
Example scenario
A tournament has 100 entrants paying 10 each, for a 1,000 prize pool. The top 15 places are paid, and the minimum cash is 20. With 16 players left, the blinds are 500/1,000.
- Big stack (60,000 chips, 60 big blinds): can raise many hands, because opponents are reluctant to call off their tournament life.
- Medium stack (20,000 chips, 20 big blinds): under the most pressure. Calling an all-in and losing means busting just before the money.
- Short stack (4,000 chips, 4 big blinds): will be forced all-in by the blinds soon and may need to gamble regardless.
The big stack raises from the cutoff with Q♠ 8♠. The medium stack in the big blind holds A♦ T♣. Away from the bubble, calling or re-raising with that hand would often be reasonable. On the bubble, with a short stack likely to bust soon, folding can be correct because doubling up adds less value than busting costs.
Bubble strategy tips
- Big stacks: raise more often, especially against medium stacks who cannot afford to call lightly.
- Medium stacks: tighten your calling range against big stacks, but keep stealing from players who are also cautious.
- Short stacks: look for good spots to move all-in before the blinds shrink your stack to nothing; see short stack play.
- Everyone: watch the other tables. If a very short stack elsewhere is about to bust, folding marginal hands gains value.
Common mistakes
- Folding everything and letting the blinds eat your stack.
- Calling all-ins with medium hands when a short stack is about to bust anyway.
- Big stacks being passive and missing easy chances to collect blinds.
- Forgetting that after the bubble bursts, players often loosen up again quickly.
Frequently asked questions
What does on the bubble mean in poker?
It means the tournament is one elimination away from the paid places. The next player to bust receives no prize.
Should I play tight on the bubble?
Medium stacks usually should tighten their calling ranges, but big stacks can profit by playing more aggressively, and short stacks often need to take risks.
What is a bubble boy?
The bubble boy, or bubble girl, is the player who finishes in the last unpaid position, just one place away from winning money.
Related poker terms
- ICM (Independent Chip Model) — ICM (Independent Chip Model) converts tournament chip stacks into their real prize-money value, showing why chips you lose matter more than chips you win.
- Short Stack — A short stack is a chip stack that is small relative to the blinds, often under about 20 big blinds, leaving little room beyond shoving or folding.
- All-In — Going all-in means betting every chip you have in front of you. You can't be forced out of the hand, but you can only win what your chips cover.
- Satellite — A satellite is a poker tournament whose prizes are entries (seats) into a bigger, more expensive tournament instead of cash.
- Final Table — The final table is the last table of a poker tournament, formed when the remaining players can all fit at one table. Pay jumps grow with each elimination.