If after the add-on my stack becomes average, but the cost is high, is it worth it?

Need to calculate ICM increment. For example, moving from short stack to average may significantly improve survival probability, but if the cost exceeds the expected prize increase (e.g., cost is more than 20% of buy-in), it's usually not worth it. Priority should be on estimating the change in finishing probabilities after the add-on.

Add-on options are only available in the early tournament, why discuss strategy after entering the money?

This article focuses on special tournaments where late add-ons are allowed (e.g., some satellites or deep stack tournaments). Most standard tournaments only allow early add-ons, but understanding the ICM add-on principle helps early decisions (even if not ITM) because elimination pressure is similar.

Is there a simple rule of thumb to decide whether to add on?

A common rule: when your stack is below 10 big blinds, the add-on is usually worth it because the extra chips significantly improve survival chances. When chips exceed 20 big blinds, unless the cost is very low (e.g., less than 10% of buy-in), don't add on. For middle stacks, use discretion.

#ICM#Add-on Strategy#Poker Tournament#Bankroll Management

Add-on Strategy After Entering the Money

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This article discusses add-on strategy after entering the money (ITM) in poker tournaments, analyzing how to combine ICM model and stack depth to make optimal decisions in events that allow add-ons.

Definition

Add-On is a mechanism in some poker tournaments that allows players to purchase additional chips at a specific time (usually during the first break or early stage). The “In the Money Add-On Strategy” refers to the decision framework when players face the add-on option after the tournament has already entered the money (ITM). This strategy combines ICM (Independent Chip Model) with conventional chip value theory, helping players act rationally in an environment of low odds and high elimination cost.

Principle

1. Timing and Structure of Add-On

Typically, add-ons occur early in the tournament, but a few events (such as deep stack tournaments or special formats) may offer later add-on windows, even including opportunities after entering the money. The chip unit for add-ons is usually a fixed multiple of the blind (e.g., 10,000 chips for $20), while the initial buy-in may be higher. The main feature of an add-on is that its price is much lower than the cost of the same chip amount from a normal buy-in. For example, $20 might buy 10,000 chips, while an initial buy-in of $100 gives 20,000 chips, so the “price per chip” of the add-on is lower.

2. ICM Effect

After in the money, the value of each additional chip depends not only on its fighting potential but also on how it affects your expected prize distribution. The ICM model shows that small stacks have higher marginal value (because each additional chip significantly increases survival probability), while large stacks have lower marginal value (because prize growth is less than chip growth). Therefore, the add-on decision requires evaluating:

How your chip ranking changes after the add-on.
The comparison between add-on cost (cash outlay) and expected prize increase.
The chip distribution and prize structure of remaining players.

3. Chip Value Calculation

Assume you currently have chips X, the add-on gives you chips Y at cost C. Under the ICM framework, your expected prize value before the add-on is ICM_pre, and after is ICM_post. If ICM_post - ICM_pre > C, then the add-on is favorable. However, ICM calculations are complex; in practice, it can be simplified as:

When you are short-stacked (less than 10 big blinds), each unit of chips from the add-on brings greater survival opportunity, so it is usually favorable.
When you are above average stack, the prize increase from the add-on is limited, so be cautious.
If the add-on does not change your chip tier (e.g., average stack remains medium after add-on), it is not worthwhile.

Practical Examples

Example 1: Short Stack Rescue Background: 6-person final table, prizes: 1st $500, 2nd $300, 3rd $200, 4th-6th $100. Blinds 2,000

FAQ

: Need to calculate ICM increment. For example, moving from short stack to average may significantly improve survival probability, but if the cost exceeds the expected prize increase (e.g., cost is more than 20% of buy-in), it's usually not worth it. Priority should be on estimating the change in finishing probabilities after the add-on.