🫧 ICM & the bubble
chips are not money
In tournaments, chips are not money. Because the prize jumps aren’t proportional to chip counts, a chip you win is worth less than a chip you lose — a principle called ICM (the Independent Chip Model). Understanding ICM, especially on the bubble, is what separates tournament specialists from cash players. This lesson explains it plainly.
Tournament chips and tournament money are different currencies. Doubling your stack does not double your expected prize money — payout structures flatten it. This gap is modelled by the Independent Chip Model (ICM), and it quietly changes what “correct” means.
ICM matters most on the bubble — one elimination from the payouts. Busting there is the disaster the model punishes hardest, so calling all-ins gets much tighter: a flip you’d happily take for chips becomes a clear money-losing call.
But pressure cuts both ways. If calling is painful for everyone, then shoving is gold: big stacks attack the bubble relentlessly, because medium stacks can’t afford to fight back. The bubble is where tournaments are won — by the players applying the pressure instead of absorbing it.
💡 Key idea: near the money, ask what a decision does to your prize equity, not your chip count. Sometimes folding a coin flip is the most profitable play in the whole event.
ICM converts your chip stack into its real dollar value based on the remaining payouts. The key consequence: near a pay jump — the bubble, or a final-table ladder — busting is catastrophic, so marginal all-in calls that would be fine in a cash game become losing plays. You should fold hands you’d normally call, because the downside (busting before the money) outweighs the upside (winning chips that are worth less).
The flip side is pressure. Big stacks exploit ICM by attacking medium stacks who can’t call without risking their tournament life. If you’re the one being pressured, tighten your calling range but keep shoving your own — putting others to the ICM test is exactly how you accumulate. “Chips are not money” is the sentence to keep in your head every time the money is close.
Questions
What is ICM in poker?
ICM, the Independent Chip Model, estimates the real dollar value of your tournament stack from the remaining payouts. It shows why chips won are worth less than chips lost, especially near a pay jump.
Why should I play tighter on the bubble?
Because busting just before the money costs you a payout, marginal all-in calls lose real dollar value even when they win chips. ICM says fold hands near the bubble that you’d happily call in a cash game.