How to Start Studying ICM Poker Strategy

What Is ICM?

ICM (Independent Chip Model) is a mathematical model used in tournament poker to calculate the current monetary value of your chips. Simply put, it tells you how much your remaining chips are worth in the tournament. The math behind ICM may seem intimidating, but it's not really that complicated. Today, many tools like ICMizer or Hold'em Resource Calculator can do the calculations automatically.

The key to understanding ICM is that the chip count and its value are not linearly correlated in tournaments. In cash games, 1 chip equals $1, but in tournaments, chip value depends on the prize pool, payout structure, and your chip stack relative to your opponents'.

So you can have situations where a call is profitable in the long run for chips (positive chipEV) but actually loses you money (negative $EV). When ICM is in play, the chips you win are worth less than the chips you lose. This is why ICM mistakes are often the most expensive in poker – a major error at the final table with high stakes can cost you thousands of dollars, while the same mistake early in a tournament with little ICM pressure might cost only a few dollars.

Why Is ICM So Important?

A solid grasp of ICM is the difference between winning and losing tournament players. Today, if you want to be profitable and move up in stakes, you absolutely need to understand the hidden impact of ICM. Besides calculating fair deal distributions at the final table, ICM helps us better balance risk and reward in our decisions, especially when there are large payout jumps.

If you don't even know the basics of ICM, you are almost certain to make huge mistakes in the late stages and at the final table. The [final table] is where money matters most, with the highest prizes, and a single ICM mistake can cost you thousands of dollars with one click! If you're struggling to succeed in tournaments, invest at least 1–3 months dedicated to studying ICM. Stick with it, and even this small effort will make a massive difference in your results.

Now, let's dive into Bencb's systematic ICM learning steps.

How to Start Studying ICM?

How do you begin with such a complex subject? Luckily, Bencb has refined a step-by-step process for learning ICM from scratch over a decade of playing top-level tournaments. Below, we'll break down hands, learn which variables to input, how to truly learn from the analysis, and how to internalize that knowledge and apply it in practice.

1. Start Analyzing Hands You've Played

First, you need to analyze tournament hands you've played using an ICM tool (like ICMizer or Hold'em Resource Calculator). There are two general rules for ICM study:

• Spend most of your time analyzing hands. Experience is the primary factor for improvement – there's no shortcut in ICM study; repeated practice is irreplaceable.
• You must truly understand what you see (more details later). Quality over quantity – if you just skim through simulation results without thinking, you learn nothing.

Give yourself enough time for each hand, ask yourself real questions, and make sure you understand and internalize. We'll cover what to look for in detail later; for now, start by importing your first hand.

2. Import Hands into an ICM Tool

Ideally, you already have a hand history database in Hold'em Manager 3, Hand2Note, or PokerTracker 4. If you're starting from scratch, play a few tournaments first and save some hands for review.

Prioritize hands where you were genuinely confused during play, especially those close to big payout jumps and the final table, when money starts to matter. After playing, choose an ICM program and import the hands.

If you don't want to pay yet or want to try first, ICMizer offers one free simulation per day, and Hold'em Resource Calculator gives new users a two-week free trial. After downloading the tool, import or manually enter your hands.

3. Adjust Opponent Ranges

After importing the hand and running the first simulation, first look at what the default ICM range suggests you should do.

Remember, these ranges are based on pure GTO (Game Theory Optimal) strategies. Most players in practice won't come close to these ranges. But they still provide a theoretical foundation, letting you see how a perfect player would act from both positions.

Next, adjust their ranges based on your assumptions about the opponent. This can be tricky, especially for less experienced players. Start with conservative adjustments and don't overdo it. A good sign is if the opponent has shown down cards that are far outside the default GTO range – their range may be quite different.

If you've faced this opponent before, you might also have some reads. For example, if they tend to play extremely tight under pressure, tighten their range; if they seem loose and wild, keep it wide. There's no simple formula – it's very situational. ICM study takes time to develop the intuition for adjusting opponent ranges.

If you have no read on the opponent or aren't yet good at adjusting, you can temporarily just study the default GTO ranges.

4. Look for Variable Changes

Once the ranges are set, you can look for lessons to draw and adjustments to make. To do this, you need to tweak the simulation parameters and observe the changes.

Try changing the stack sizes between you and your opponent and note how the ranges change. If the opponent's range is very tight, how should you respond? What if the opponent is a maniac and would go all-in with any two cards?

How should you play with 10bb? What about 50bb? How does the opponent's range adjust with these changes? You can also adjust the payout structure and the number of remaining players.

When the prizes are stacked toward the top (first place gets a higher percentage of the prize pool), how does the situation change? What if you're early in the tournament, far from the money, how does your range change?

Try to stay in a curious mindset and experiment with the same hand in different situations.