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StrategySit & Go

Preflop Strategy (3): Calling and Isolating All-Ins Charts

calling all-ins charts

Before reading this lesson, you should have previously read through:

•    Playing Preflop (3): Calling and Isolating All-ins

As a result, you should already have an understanding of how the decision process looks like in a spot where you are facing an open push from a player in an earlier position.

It is always best to base your calculation on player-specific reads and risk premium considerations in the exact stack setup you are facing. However, from a practical standpoint, it is not feasible to perform detailed calculations every time you are facing such a spot. With time, you should develop the right intuition. Until then, it is good to have a shortcut for default, readless, average spots. That is exactly what this lesson is about.

How to estimate the risk premium

In lack of a better estimate, a good method of approximating the risk premium is to take the average risk premium given the number of players left and the payout structure. This method assumes equal stacks and negligible blinds and antes. Remember that the bigger your stack and the smaller the opponent's stack, the smaller your risk premium is compared with the average, and vice versa.

The first chart shows the average risk premium in a 9-man SNG with a standard 50/30/20 payout structure as a function of the number of players still in the tournament.

Players 9 8 7 6 5 4 3
Risk premium 4.8% 5.6% 6.6% 8.1% 10.6% 15.2% 7.1%

The second chart shows the average risk premium in a 6-man SNG with a 65/35 payout structure as a function of the number of players still in the tournament.

Players 6 5 4 3
Risk premium 3.8% 4.8% 6.6% 10.6%

The next chart shows the average risk premium in a 180-man SNG with a standard payout structure at the final table and at several points earlier throughout the tournament.

Players 180 60 28 19 10 to 7 6 to 4 3
Risk premium 1.1% 5.8% 8.8% 6.7% 10.6%-10.8% 9.9%-10.6% 9.4%

You can use publicly available tools, such as ICMIZER, to calculate the risk premium with 60 or less players left for any payout structure (and, if need be, stack setup).

Next steps

Take the quiz and test your understanding of this lesson.
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Comments (3)

#1 Warrior21, 24 Oct 13 21:45

In the bubble of a 6 max with 10BBs from the button noone pushes 40%. Nash equilibrium is at 21%.

#2 lycoreus, 16 Jan 16 08:14

Thats a huge ammount of calculations that need to be done especialy when multitabling!

#3 Vip3rNZ, 27 Sep 16 23:09

thats why you memorize the table roughly and make a calculated guess if multitabling. Thats one of the downfalls of multi tabling. If playing 1-2 tables then you should have time to check the players pushing % and look at what % of hands you need to have in order to call on the other chart.