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Aleksei Lebedev
Exan13
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How to learn to read an opponent's hand by his sizing

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06.04.25
7 min read
Strategy: How to learn to read your opponent's hand from his sizing

Translated with the help of AI. We apologize for any errors and would appreciate your help in correcting them.

Many people do not realize that the readability of our hands depends on how well we make bet and raises. In the modern realities of poker, there are less and less players who make basic mistakes in protecting their hands from reading - playing with a limp and various sizing open raises depending on the strength of the hand. But it is still relevant to read potflop game sizing.

1. Open Raise Sizing

Some players still make a mistake in Open Raise sizing. If you notice an increased opening sizing of 2.5-3x from most opponents, this means an increase in the strength of the range compared to the standard for this position. Many make an inflated raise from steal positions when they have a hand on which they are ready to close all-in. This information is still confirmed by the field investigators even atabi35.h

Exception: High sizing with SB vs. BB often has a lot of garbage hands in the range, as many reg players use it very polar with a skew in the bluff as a bluff.  

2. Optimal sizing of 3bet

Sizing 3bet also often gives us useful information. The last rumors of the field game showed that in general and on average, along with the increase in sizing of 3bet, there is also an increase in the strength of the range. For this reason, we need to make less 4-bet bluff, including push, and also to call less in 3-bet pot against sizing 4x and more. Especially a lot in the range of such 3-bet hands with complex post-flop in 3-bet pot AQ-AK and 99-TT. Another interesting nuance is that 3-bets on the QC-AA field are often made with less sizing than the standard one. Players do this because on QC+ they want to see action, and on AK they do not want to receive preflop circles often. When we see sizing 2.5-3x from players who usually bet 3.5-4x - there is a reason to play more carefully. 

Conclusion: It is better to use the same 3bet sizing with the entire range, so as not to give out any information to rivals. 3-3.5x good sizing.

3. Sizing on the flop

Contbet Flop is a very important bet for analysis, since most players refuse to balance and divide their range into parts depending on the size of the bet. Special reg players with middle and high limits stand out here, who often use a large bet of 60%+ in a bluff with an understanding of where and when it is convenient to do it. They have it balanced. If you do not take into account these guys, but take as a whole the players of the glade including fishes, nits, weak reg players, middle reg players, then the rule working on the preflop "increasing the size of the sizing - increasing the strength of the range" remains also on the flop.

  1. 25-35% - the largest amount of bluff in the range. Especially in draw board.
  2. 35%-50% - there is also a lot of bluff, but less. And a lot of draw.
  3. 50-60% - the amount of bluff begins to fall, draw a lot.
  4. 65%-75% - little bluff, a lot of velly and draw firewood.
  5. 75%+ - almost no bluff, a lot of strong hits

Conclusion: The larger the bet of the flop from the opponent, the less we choose an aggressive draw draw (play passively) and play the stake less on pot-control hands. If large bet continues on the following streets - we can throw out even the top pair without good kickers.

4. sizing on the turn

Sizing of a thorn is less readable than a flop. Here, the general concept of “increasing the size leads to an increase in the range” is preserved, if we consider it in general. But in particular, it does not always work. There are large bet, shifted towards draw and even bluff, there are board where a larger bet is played by a bluff, and an average bet is played by more value.

Conclusion: It is difficult to read the bet of a thorn. Small bet rates less than 50% are best read - they have a lot of middle hands and draw. Few strong hands.

5. Sizing on the river

The river is also quite difficult to read. Opponents and small and medium and large sizing can use both as a bluff and on the velly. Sometimes even illogically large bet rates are used for vellyas on middle hands to create the appearance of a bluff for us. Here it will not be possible to describe the dependence in reading sizing in a few lines, as with the thorn. If you want to understand this topic more deeply and in detail, I recommend purchasing Section 3 from my Easy Postflop video course. This section describes what sizing we need to use on all streets and also how to read opponents' sizing - 3 hours of structured information on this topic, with a demonstration of practical examples. 

Conclusion: The river is a street that requires increased attention. To verify their results in the fold/pass solutions on the River, there is an indicator in XM3 - River Call Efficiency. A good value of this indicator is in the range of 1.2 - 1.8.

6. How to prevent opponents from reading your hand

Many players are afraid to use lines based on the exploitation of the field in certain situations in their strategy. It may seem that such a game is easy to read, and therefore vulnerable to our rivals. However, this opinion is erroneous, because in order to understand the strategy of another player, you need not only to closely monitor his actions, but also to collect a large database of statistics on him, as well as to be able to correctly interpret it. In the conditions of playing MTT, this is almost unrealistic. Feel free to stick to your strategy and don't be afraid to constantly incorporate exploit lines into your game! 

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