You Can Only Win What They Have

Let the number of chips in the shorter stack inform which hands you play.

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You look down at K♠️ K❤️ and your pulse jumps. You’ve got 60,000 chips—one of the biggest stacks in the room. You raise, one player calls, and the flop misses them completely. The chips go in. You’re already picturing a giant pot sliding across the felt toward you . . .

. . . except your opponent started the hand with just 6,000 chips. You win 6,000. Not a chip more. Your towering stack didn’t matter—the hand was only ever worth what the shorter stack could pay.

The smaller of the two stacks in a hand is the effective stack size, and it subtly affects many decisions you make at the table. Many players never think about it. They stare at their own pile of chips and decide what hands to play and how much to bet based on that number alone. But your own stack is only half the story. Today we’ll fix that.

What “Effective Stack” Really Means

The effective stack is simple: it’s the smaller of the two stacks involved in a hand. That’s the most that can be won or lost between you.

Say you have 50,000 and your opponent has 8,000. You might feel like you’re playing a deep, 50,000-chip game—but you’re not. The moment you’re in a pot with this player, you’re both effectively playing 8,000 chips, because that’s all they can put in. Your extra 42,000 is irrelevant to this hand. It’ll matter against someone else, but not here.

(When more than two players are in the pot it gets a little more layered, but the same idea holds: against each opponent, the effective stack is whichever of you has fewer chips.)

Get in the habit of glancing at your opponent’s stack before a big pot. The effective stack—not your own—tells you how much is really at risk.

Count in Big Blinds, Not Chips

Here’s where a lot of chips quietly disappear. As we talked about in our articles on bet sizing and pot odds, good decisions come from thinking in relative terms, not absolute chip counts. Effective stack size is no different.

“I have 40,000 chips” tells you almost nothing on its own. You have to ask: 40,000 compared to what?

• At blinds of 100/200, that 40,000 is 200 big blinds. You are extremely deep.
• At blinds of 2,000/4,000, that same 40,000 is just 10 big blinds. You are very short, and it’s nearly time to move all in.

The chip number never changed. What it’s worth changed completely. This is the trap of anchoring to a chip count—thinking “I’ve got 40k, I’m fine”—while the blinds quietly swallow your stack. The fix is one small habit: divide the effective stack by the big blind. That single number—how many big blinds are in play—should shape how you play the hand.

When You’re Deep, Cheap Hands Get Dangerous (in a Good Way)

When the effective stack is deep—say, 80 big blinds or more—speculative hands go up in value. These are the cheap-to-play hands that rarely connect but make monsters when they do: small pairs that flop a set (three of a kind), suited connectors like 7♠️ 6♠️ that make straights and flushes.

Why do they get better when you’re deep? Because on the rare occasion they hit, there are enough chips left in the stacks to win an enormous pot. Calling a small raise before the flop with 5♣️ 5♦️ is a bargain when your opponent has 150 big blinds left to lose when you flop a set. (Poker players call this implied odds—the extra chips you expect to win on later streets when your hand comes in; we’ll talk about this in more detail in a future article.)

The flip side: be a little careful getting all your chips in for 150 big blinds with just one pair. Top pair is a perfectly good hand, but it’s not the kind of hand that wants to play a giant pot against deep stacks—because to keep piling chips in, your opponent usually needs something even stronger.

This is especially worth practicing right now: our Summer Deepstack Championship starts everyone with 200 big blinds—the deepest stacks of the season—so these deep-stack spots will come up early on the night.

When You’re Short, Play Big Cards

Now flip it around. When the effective stack is shallow—around 15–20 big blinds—those same speculative hands lose their appeal. Flopping a set with 5♣️ 5♦️ is still fun, but if there aren’t many chips left to win, the cheap-hand-huge-payoff math falls apart. Short stacks want high-card strength instead: a hand like A♠️ J♦️ or K♣️ T❤️ that can make a strong top pair and get the chips in as a favorite.

Being short also changes how you commit your chips: as we discussed in our article on thriving with a short stack, you are usually looking for a hand that you are happy to move all-in with before or after the flop. For today, the takeaway is simpler: a short effective stack is your signal to stop nursing chips and start looking for that spot.

A Quick Self-Check

Before you play a big pot, run three fast questions:

Whose stack is smaller—mine or my opponent’s? That’s the effective stack. It’s the real ceiling on the hand.

How many big blinds is it? Divide by the big blind. Deep (80+), medium, or short (under ~20)?

Does that change my plan? Deep favors speculative hands and a little caution with one pair. Short favors big cards and getting your chips in before you’re too short to matter.

None of this has to be precise. Just swapping “I’ve got a lot of chips” for “the effective stack is about 25 big blinds” will already put you ahead of most of the table.

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Your Challenge

In your next game, do one thing every time the blinds go up: count your stack in big blinds. Take your chips, divide by the big blind, and say the number to yourself. Then, before any pot where real chips could go in, sneak a look at your opponent’s stack and note the effective stack in big blinds too. You don’t have to change a single decision at first—just build the habit of seeing the number that actually matters. Once you see it, better decisions tend to follow on their own.

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Coming up next: So far we’ve mostly pictured one-on-one pots—but at our tables, most hands go multiway, with four or five players limping in to see the flop. That crowd changes everything, because some hands hold up beautifully against a single opponent but fall apart against a whole table. Our next article looks at how your chances of winning shift when a pot goes multiway—and that sets up the one after it: how to respond when someone raises in front of you, and whether to just call or raise again depending on your hand and your stack.