Estimating Sean Lefort's 'R' value
Posted by ontheupandup
Posted by
ontheupandup
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Mid Stakes
Estimating Sean Lefort's 'R' value
Hi everyone,
I've been playing around with preflop ranges in CREV recently, but something I'm struggling with is coming up with reasonable 'R' values for different scenarios when I use the checkdown function for postflop play. For anyone who doesn't know, R is the proportion of a player's equity that they can expect to realise for a hand that sees the flop, and is a concept that Sean Lefort frequently touched on in his videos.
The thing is, I'm not really sure how to choose sensible R values for different situations. Take for instance a min-raised BTN vs BB situation, where the players have typical ranges.
What is R for BB when BB flats BTN's min-open? I frequently see values of around 65-70% used.
What about R for BB when BB 3bets and BTN calls?
And what is R for BB when BB 3bets and then flats BTN's 4bet?
I realise that the best way to determine these values would be through database analysis, but I don't think I have a big enough sample size to get accurate answers - at least not for the >SRP situations.
The most obvious factor that effects R is position, but what about other factors?
Is initiative important?
How about stack-to-pot ratio? I would think that R for the OOP player would increase at lower effective stack depths, but intuitively I feel like if I 3b/called a hand like AQs from the BB vs BTN, that my R would be lower than 65%.
I guess the TLDR question of this post would be: are there situations where R for the OOP player deviates significantly from 65-70%?
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Generally, BTN has more options to realize his EQ because he can almost always choose to see a free turn. OOP has a big disadvantage because it is much harder to float oop, control the size of the pot, etc.If I understand the term "R" correctly, hands that flop big draws (oesd, fd) should be good candidates for OOP, because they will have 33-50% EQ OTF (depending on whether you have life overcards, combodraws, pair + draw) and you will often get to the river with them quite naturally.
I'm not especially agree with that, it is true, if and only if, Vilain doesn't not have a decent donkbetin or checkraisin range, so it could be very exploitative (by having 95% check range OTF). I do think that some people can't handle to play OOP without having initiative.
But "good players" start to donkbet OTF or OTT and force Vilain to have a callin/raisin range instead of a bettin/checkback range. Espacially vs Vilain who does not polarise enough and raise most of the time (or always) in Valuetown postflop.
It means u force them to be more transparent by playin more their value range (raisin or callin) than their Value/bluff range (bet/check pot control).
In some spots u will put the same amount to see next the street by donkbettin or checkcallin...
Agree with you that it is really hard to come to right conclusions with R...main variables for R: position, initiative, starting hand strength, agg or pass villain, sizing.
The only way to maximize R is to open ship any hand you want to play.
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