What is ICM in Poker

ICM (Independent Chip Model) is a model that translates your chips into their real value in prize money. The idea is simple but counterintuitive: in a tournament, a chip isn't worth the same depending on how many you have, because what you cash at the end depends on your spot in the payout structure, not on the raw number of chips.

An example makes it clear. Four players are left and three get paid. You have 10,000 chips and across from you another player has 10,000. If you double your stack to 20,000, you don't double your expected money: you get closer to a bigger prize, yes, but the difference between finishing 3rd (cashing) and 4th (leaving empty-handed) weighs far more than winning a few extra chips. The chips you win are worth less than the ones you risk.

From that comes the most important practical rule of ICM: near the money bubble or a big pay jump, your ranges get tighter. A hand that would be a profitable call counting pure equity alone can be a clear mistake in real tournament value, because busting just before you cash costs more than what you gain by doubling.

This is exactly what most affects push/fold strategy in the late stages of a tournament.

You can see how real value is split between players with the ICM calculator, free and with no account needed.